TW201040442A - Illumination system - Google Patents

Abstract

An illumination system including a first light emitting device, a second light emitting device, a light combining module and a first dichroic compensator is provided. The first light emitting device is capable of emitting a first color beam with a first wavelength range. The second light emitting device is capable of emitting a second color beam with a third wavelength range. The light combining module includes a first dichroic unit and a second dichroic unit. The first dichroic unit and the second dichroic unit combine the transmission paths of a part of the first color beam and at least a part of the second color beam after they leave the light combining module. The first dichroic compensator allows the part of the first color beam with a second wavelength range to pass through and blocks another part of the first color beam.

Description

201040442 PT1485 3U347twf.doc/n VI. Description of the Invention: [Technical Field] The present invention relates to an illumination system, and in particular to an illumination system for a plurality of illumination elements having different illumination colors. . [Prior Art] With the advancement of display technology, the projection device can use a white light-emitting Ultra High Pressure Lamp (UHP Lamp) with a Color Wheel to sequentially generate red, green, and blue light. In addition to providing a color image to the projection device, a projection device using a red, green, and blue light emitting diode (LED) as a light source has recently been developed. In a projection device using a light-emitting diode of three colors of red, blue, and green as a light source, an X-mirror is usually used to combine light. For example, the X-mirror includes a red dichroic mirror and a blue dichroic mirror that intersect each other, wherein the red dichroic mirror reflects the red light beam emitted by the red light source and causes the blue light beam emitted by the blue light source. And the green light beam emitted by the green light source penetrates' while the blue dichroic mirror reflects the blue light beam and allows the red light beam and the green light beam to penetrate. Through the different effects of X-mirrors on different color beams, the red, green and blue light beams with different transmission directions can be guided to the same direction. Therefore, the red, green, and blue light beams are passed through a projection device such as a Digital Micro-mirror Device (DMD) or a Liquid-Crystal-on-Silicon Panel (LCOS Panel). After the action of the valve, it is possible to form a colored image plane. J〇347twf.doc/n 201040442 It is worth noting that the transmittance of the incident light beam to the dichroic mirror actually changes with the incident angle of the incident light to the dichroic mirror. Therefore, the difference in transmittance will result in uneven color of the image plane projected by the projection device. The red light beam of σ ^ a certain wavelength is incident at a smaller angle. The red dichroic mirror has a smaller transmittance, and most of the red light beams of this wavelength are reflected by $, when the red light beam of this wavelength is compared. When the large angle is incident on the red color mirror, the penetration rate increases, resulting in a decrease in the proportion of the red Ο 3 that is reflected. In addition, the blue light beam in the partial wavelength range II has a change in the transmittance of the dichroic mirror as a function of the angle of the human lens, and the beam is incident on the red dichroic mirror and the blue dichroic mirror. Changes and changes in the situation, these will cause the color of the shirt like the picture is not uniform. SUMMARY OF THE INVENTION The illuminating system of the illuminating system can provide a uniform color. Other purposes and advantages of the present month can be further understood from the technical features disclosed in the present invention. For the purpose of all or other purposes, the present invention - the second illuminating element H, the genre, includes a - illuminating element, a illuminating illuminating module and a first color separation compensating unit. The first ninety-seven pieces are suitable for issuing and ten brothers. The second illuminating element is adapted to emit and has a first length: a perimeter. The first color separation unit and the second color separation unit are disposed on a part of the first color beam and at least part of the second 5 201040442 r 1^ υ j 47twf. doc/n color beam transmission path, wherein The first color separation unit is adapted to reflect the portion of the first color light beam. The second color separation unit is disposed on the transmission path of the portion of the first color light beam and the at least part of the second color light beam, wherein the second color separation unit is adapted to reflect the at least part of the second color light beam, and is adapted to One color beam penetrates. In addition, the portion of the first color light beam reflected by the first color separation unit and the at least part of the second color light beam reflected by the second color separation unit exit the light combining module, and the portion of the first color light beam and the at least part of the light beam The transfer paths of the second color beams are merged. The first color separation compensation unit is disposed on the transmission path of the first color light beam and is located between the first light emitting element and the light combining module. This part of the first color beam will penetrate the first color separation compensation unit, and the other part of the first color light beam will be blocked by the first color separation compensation unit. The partial first color light beam has a second wavelength range, the second wavelength range is narrower than the first wavelength range, and falls within the first wavelength range, and the peak of the spectrum of the first color light beam falls within the first wavelength range. The incident angle of the first color separation unit incident to the first color separation unit is less than 30% of the first color separation unit of the first color separation unit and the incident angle of the first color separation unit is less than 30%. The average transmittance of the first color light beam that penetrates the first color separation unit to the portion of 60 degrees is less than 5%. In an embodiment of the invention, the first color separation compensation unit is a color separation filter. The first color separation unit and the second color separation unit may be mutually intersected, and the first color separation unit may be more adapted to allow the at least part of the second color light beam to penetrate. In one embodiment of the invention, the first color separation unit maintains a spacing from the second color separation unit. The first-separation unit may be more adapted to reflect the at least part of the second color light beam from the second color separation unit, and is adapted to reflect the first portion of the 201040442, JK1145^30347twf.doc/n portion from the second color separation unit. Color beam. The portion of the first color beam reflected by the first color separation unit and the at least part of the second color beam are combined with the transmission path of the at least part of the second color beam after leaving the first color separation unit. . In one embodiment of the invention, the illumination system further includes a third illumination element </ RTI> adapted to emit a third color light beam, wherein the at least a portion of the third color light beam will penetrate the first color separation unit. In addition, after the first color separation unit passes through the first color separation unit, the second color light beam of the ^3 blade is removed from the light combining module, and the transmission path of the at least part of the third color light beam and the first color of the portion The beam and the transfer path of the at least partially second color beam merge. The illumination system may further include a third aperture stop disposed on the transmission path of the at least part of the third color light beam and located between the third light emitting element and the light combining module. In an embodiment of the invention, the illumination system further includes a first light homogenizing element, at least one first lens, a second light homogenizing element, at least one first lens, a third light homogenizing element, and at least A third lens. The first light homogenizing element is disposed on the transmission path of the first color light beam and is located between the first light emitting element and the first color separation compensation unit. The at least one first lens is disposed on the transmission path of the first color beam and is located between the first light homogenizing element and the first color separation compensation unit. The second light homogenizing element is disposed on the transmission path of the first color light beam and located between the second light emitting element and the light combining module. The at least one second lens is disposed on the transmission path of the second color light beam and located between the second light homogenizing element and the light combining module. The third light homogenizing element is disposed on the transmission path of the dichroic beam and is located between the second component and the light combining module. At least the third lens is disposed between the third tangential element and the wire group by the configuration J J = 7 201040442 PT1485 30347 twf.doc / n &quot; In the embodiment of the present invention, the illumination system further includes a third color separation compensation sheet 7L disposed on the transmission path of the third color light beam and located between the third optical element and the light combining module. In addition, the third light-emitting element has a fifth wavelength range and has a sixth wavelength range = part of the third color light beam will penetrate the third color separation compensation unit, and the other part, the three color light beam Will be blocked by the third color separation compensation unit. The sixth wavelength range is narrower than the fifth wavelength range and falls within the fifth wavelength range, and the peak of the spectrum of the third color light beam falls within the sixth wavelength range. Further, the third color separation compensation unit may be a color separation filter. In an embodiment of the present invention, the illumination system further includes a second color separation compensation unit disposed on the transmission path of the second color light beam and located between the second light emitting element and the light combining module. In addition, the first color light beam emitted by the second light emitting element has a third wavelength range, and a portion of the second color light beam having a fourth wavelength range passes through the second color separation compensation unit, and the other portion of the second color light beam Will be blocked by the second color separation compensation unit. The third wavelength range has a narrow third wavelength range and falls within the third wavelength range, and the light peak of the second color light beam falls within the fourth wavelength range. Further, the second color separation compensation unit described above may be a color separation filter. In an embodiment of the invention, the portion of the first color beam incident on the first color separation unit having an incident angle of 45 degrees penetrates the first color separation unit and has a transmittance of less than 1%. The portion of the second color beam incident on the second color separation unit having an incident angle of 45 degrees has a transmittance of less than 1% through the second color separation unit. The incident angle of the incident first color separation unit and the second color separation unit is 45 degrees. The third 201040442 * * * * j 0347twf.doc/n color beam penetrates the first-separation unit and the second color separation unit 95% greater penetration rate

O 施 In the present hair H, the first wave is f two nanometers to 65 nanometers. The second wavelength range is substantially from 611 nm i nanometer. The third wavelength range is substantially from 438 nm to 485^. The four wavelength ranges are substantially from 440 nm to 48 wavelengths and are substantially from 492 nm to 579 m. The i f two is essentially from 502 nm to 555 nm. ^ Brother, the wavelength of the dry circumference ϋ invention - the real _ towel, the first - wave is qualitatively from no meters to 579 nm. The second wavelength range is substantially from 51 nanometers to 55 = nanometers. The third wavelength range is substantially from 438 nm to the fourth wavelength range of the meter is substantially from 44 〇 nanometer to 5 nanometer five. In essence, 611 nm to (four) nanometer. The sixth wavelength range is only 611 from 611 nm to 648 nm. In the embodiment of the present invention, the first wavelength range is substantially from no meters to 650 nm. The second wavelength range is substantially from 6 η nm to 648 nm. The third wavelength range is substantially from 492 nm to the fourth wavelength range of nanometers substantially from sl 〇 nanometer to Μ 5 nm. The fifth $long range is essentially from 438 nm to 485 nm. The sixth wavelength range is only qualitatively from 440 nm to 485 nm. In an embodiment of the present invention, the illumination system further includes a first aperture light disposed on the transmission path of the at least part of the first color light beam, and located between the third light emitting element and the light combining module. The illumination system may further include a second aperture stop disposed on the path of at least part of the second color beam, 201040442 j: jl no" jVJ47twf.doc/n, and located between the second illuminating element and the illuminating module . The first color separation unit may be a first V-shaped bending film, which forms a first V-shaped groove, and the portion of the first color light beam is incident on the first V-shaped bend via the first V-shaped groove. membrane. The second color separation unit may be a second ¥-shaped bending film forming a second V-shaped groove, and the at least part of the second color light beam is incident on the second V-shaped bending film via the second V-shaped groove . The illumination system may further include a first light transmissive substrate and a second light transmissive substrate. The first color separation unit is disposed on the first light transmissive substrate, and the first color separation unit is a color separation film. The second color separation unit is disposed on the second light transmissive substrate, and the second color separation unit is a color separation film. In an embodiment of the invention, the illumination system further includes a first edge, a second prism, a third port, and a fourth port. The second inheritance = the first one. The third one bears the second one and is relative to the first one. The fourth is the first and third, and the second. The first color separation unit and the second color separation sheet cross each other. A portion of the first color separation unit is located at the junction of the second and fourth turns, and another portion of the first color separation unit is located at the junction of the third and fourth turns. A portion of the second sub-unit is located at the junction of the first and fourth turns, and another portion of the second t-color unit is located at the junction of the second and third turns. The first color separation unit and the second color separation unit are each a color separation film. AW Based on the above, the illumination system of the embodiment of the present invention uses the first color separation compensation soap to allow a portion of the first color beam having a narrower wavelength range to penetrate and block another portion of the first color beam. The above-mentioned penetration of the first color separation compensation unit, the transmittance of the first color light beam relative to the first color separation unit does not change with the incident angle of the first color separation unit, so that the slave illumination system 10 can be made. 201040442 ...一—j〇347twf.doc/n The outgoing beam has a relatively uniform color. The above described features and advantages of the present invention will be more apparent from the following description. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following detailed description of the preferred embodiments of the present invention with reference to the preferred embodiments of the present invention, reference will now be made. The directional terms mentioned in the following embodiments, such as "previous", "back", "left", "right", etc., are only reference additions. Therefore, the direction of use is in the direction of the following figure of the first embodiment of the present invention. Therefore, the directional term used is used to describe that it is not limited to: Tai Ming Luo BH 〇 &quot; ^ &gt; Fig. 1 is a schematic structural view of the illumination system of the first embodiment of the present invention. Referring to FIG. 1, the illumination system 100 of the present embodiment includes a first light emitting element 110, a first light emitting element 120, a light combining module 丨3〇, and a first color separation compensation unit 140a. The first illuminating element no is suitable for the -th-color beam 112 of the mid-wavelength range. The second illumination emits a second color beam 122 having a third wavelength range. The first illuminating element 110 and the second illuminating element 120 are, for example, Light Emitting Diodes (LEDs). The light combining module 130 includes a first color separation unit 132 and a second color separation unit 134. In this embodiment, the first color separation unit 132 and the first color separation unit 134 are mutually intersected and disposed on a first transparent substrate 182 and a second transparent substrate 184, respectively. Further, the first color separation unit 132 and the second color separation unit 134 are, for example, color separation films, and in the present embodiment, for example, a red color separation film and a blue color separation film, respectively. 11 201040442

Pi Mu iUj47twf. As shown in FIG. 1 , the first color separation compensation unit 140 a is disposed on the transmission path of the first color light beam 112 and located between the first light emitting element 11 〇 and the light combining module 130 . In the present embodiment, the first color separation compensation unit M〇a is, for example, a dichroic filter. Part of the first color beam 112&amp; will penetrate the first color separation complement unit 140a, and the other portion of the first color beam 112 will be blocked by the first color separation detecting unit 140a. In addition, the portion of the first color light beam n2a has a first wavelength range, wherein the second wavelength range is narrower than the first wavelength range and falls within a wavelength range. The first color separation unit 132 is disposed on a transmission path of the partial color light beam 112a and the partial second color light beam 122a, and is adapted to reflect a portion of the first color light beam 112a' and adapted to penetrate at least a portion of the second color light beam 122a. In addition, the illumination system 1 of the present embodiment satisfies at least one of the following two conditions: the first condition is that when a portion of the first color light beam n2a is incident on the incident corner of the first color separation unit 132 at 1 to 8 degrees When the partial first color beam 112a penetrates the first color separation unit 132, the average transmittance is less than 30%; and the second condition is when the portion of the first color beam η% is incident on the incident corner of the first color separation unit. At 30 degrees to 60 degrees, the average transmittance of the portion of the first color beam 112a penetrating the first color separation unit 132 may be less than 5%. In other words, the penetration rate of the portion of the first color light beam 112a with respect to the first color separation unit 132 does not change as the incident angle of the first color separation unit 132 is incident. In the present embodiment, when the incident angle of the partial first color light beam 11a to the first color separation unit 132 is 45 degrees, the light transmittance is less than ι〇/〇. That is to say, most of the partial first color light beams 112a can be reflected by the first color separation unit 132 to, for example, a digital micromirror device, a Shiyake liquid crystal panel, etc. 12 201040442 ϋ34... ^0347tw£doc/n light valve On the (not shown), a color image plane is formed. One value is to note that the peak of the spectrum of the first-color beam 112 falls on the ^th wavelength rib. ® This, the portion of the first-color beam 112a that penetrates the first-separation-difficult element just after a, penetrates the first-dither plane unit 14, and the light intensity of the first-color beam 112 does not lose much. In addition, in the present _, the wavelength range of the color screaming is defined as the 范 curve of the radiance of the beam of the color of the ray value of the color ( (4) wavelength range о. In the actual cover towel, the first-wavelength flip is substantially from the red light wave perimeter of 611 ^ m to 65 G nm and the second wavelength range is substantially a red light wavelength range from 611 nm to 648 nm. . It is assumed that the first color light beam 112 (i.e., the first color light beam 112 having a wavelength range greater than 648 nm) blocked by the other color compensation unit 140a can be transmitted to the first color separation unit 132 when it is incident first. When the incident corner of the color separation unit 132 is 50 to 65 degrees, the transmittance penetrating the first color separation unit 132 greatly changes depending on the incident angle, resulting in uneven color of the light beam emitted from the illumination system. In order to improve this phenomenon, in the present embodiment, by the first color separation compensation unit HOa blocking the first light beam 112 having a wavelength range greater than 648 nm, the color uniformity of the light beam emitted from the illumination system 100 can be improved, thereby improving illumination. The color uniformity of the image plane provided by the projection device of the system 1 (). Referring to Figure 1, as shown in Figure 1, the second illuminating element 12 is adapted to emit a second color beam 122 having a third wavelength range. In the present embodiment, the third wavelength range is substantially a blue light wavelength range from 438 nm to 485 nm. In addition, in the embodiment, the illumination system 1 further includes 13 201040442 PT1485 3UJ47twf. The doc/n includes a second color separation compensation unit 140b disposed on the transmission path of the second color light beam 122 and located between the second light emitting element 120 and the light combining module 130. The second color separation unit 134 is disposed on a transmission path of the partial first color light beam H2a and the partial second color light beam 122a, wherein the second color separation unit 134 is adapted to reflect a portion of the second color light beam 122a, and is adapted to make the portion first The color beam 112a penetrates. In addition, a portion of the first color light beam 112a reflected by the first color separation unit 132 and a portion of the second color light beam 122a reflected by the second color separation unit 134 are separated from the light combining module 130, and a portion of the first color light beam U2a and a portion thereof The transfer paths of the second color light beams 122a are merged. It should be noted that in other embodiments, the illumination system 100 may not include the second color separation compensation unit 140b, and the second color separation unit 134 is disposed on the transmission path of the second color light beam 122, which is suitable for The second color beam 122 is reflected and adapted to pass a portion of the first color beam 112a. In the present embodiment, the second color separation compensation unit 14A is, for example, a color separation filter. As shown in Fig. 1, a portion of the second color light beam 122a will penetrate the second color separation complementing unit 140b, and another portion of the second color light beam 122 will be blocked by the second color separation compensation unit 140b. The portion of the second color light beam 122a has a fourth wavelength track and the fourth wavelength range is substantially a partial blue level length range from 44 nanometers to 々Μ nanometer. The value is that the blue wavelength in the fourth wavelength range (10) nm to 485 nm is in the third material range. By the passage of the second color separation compensation unit 14% flute H m *, it can be avoided that the &quot; beam of this part is changed due to the change of the incident angle of the second person separating unit 134. The unevenness of the color of the image. Worth 14 201040442 1 ·ι 〜30347twf. Doc/n Note that the peak of the spectrum of the second color beam 122 falls within the fourth wavelength range. Therefore, the partial second color light beam 122a that has penetrated the second color separation compensation unit 14b has not lost much more than the light intensity of the second color light beam 122 before the second color separation compensation unit 14b. In the present embodiment, when the incident angle of the partial second color light beam 122a incident on the second color separation unit 134 is 45 degrees, the light transmittance is less than ι〇/0. That is to say, the majority of the partial second color light beams 122a can be reflected by the second color separation unit 134 to, for example, a digital micromirror device, a liquid crystal panel such as a germanium liquid crystal panel, thereby forming a color image plane. 4 Succession Referring to FIG. 1, as shown in FIG. 1, the illumination system 1 of the present embodiment further includes a third light-emitting element 150 and a third color separation compensation unit 140c. The third light emitting element ls is adapted to emit a third color light beam 152, and the second light emitting element 150 is, for example, a light emitting diode. In this embodiment, a portion of the second color light beam 152a will penetrate the first color separation unit 132 and more penetrate the first color unit 134. In addition, after passing through the first color separation unit 132 and the second color separation sheet το 134, a portion of the third color light beam 152& after leaving the light combining module 13〇, the transmission path of the partial third color light beam 152a and the portion The transmission paths of the one-color beam 112a and the portion of the second color beam 122a are combined. It should be noted that in other embodiments, the illumination system 1 may not include the third color separation compensation unit 140c, and the third color light beam 152 may penetrate the first sub-unit 2 and the second color separation unit. 134, and after passing through the first color separation unit 132 and the second color = 134 after the third color light beam 152 leaves the light combining module 13 , the transmission path of the second color light beam 152 and a portion of the first color light beam The transfer path of n2a and part of the second color beam 122a is merged. 15 201040442 ΡΓ148^ iUJ47twf. Doc/n As shown in FIG. 1, the second color separation compensation unit 104c is disposed on the transmission path of the third color light beam 152, and is located between the third light emitting element 15A and the light combining module 130. The third color light beam 152 emitted from the third light emitting element 150 has a fifth wavelength range. In addition, a portion of the second color light beam 152a having a sixth wavelength range will pass through the third color separation compensation unit 14〇c, and another portion of the second color light beam 152 will be blocked by the third color separation compensation unit 14〇c. The third color separation compensation unit 140c is, for example, a color separation filter. In this embodiment, the fifth wavelength range is substantially a green light wavelength range from 492 nm to 579 nm, and the sixth wavelength range is substantially a wavelength range from nanometer to 555 nm. And since the incident angle of the second color light beam 152 having a wavelength range of 555 nm or more is greater than 50 degrees when incident on the first color separation unit 132, the transmittance of the first color separation unit 132 penetrates with the incidence. The angle varies greatly from angle to corner. Meanwhile, when the incident angle of the third color light beam 152 of the portion having a wavelength range of less than 5 〇 2 nm is incident on the second color separation unit 134 is less than 25 degrees, the penetration rate of the third color separation unit 134 is also penetrated. It varies greatly depending on the angle of incidence. By the third color separation compensation unit 14〇c blocking the passage of the other portion of the third light beam 152 (ie, the third color light beam 152 having a wavelength range of 555 nm or more and 502 nm or less), the portion can be lowered. The color of the two-color light beam 152 of the image is caused by the change of the transmittance as the incident angle changes, resulting in unevenness of the color of the image surface. It is worth noting that the 'sixth wavelength range is narrower than the fifth wavelength range and falls within the fifth wavelength range. Further, the peak of the spectrum of the third color beam 152 falls within the sixth wavelength range. Therefore, a portion of the third color light beam 152a after passing through the third color separation compensation unit 140c is compared to the third color separation compensation sheet 16 30347twf. Doc/n 201040442 The light intensity of the third color beam 152 before the 兀140b does not lose much. For example, in the present embodiment, when the incident angle of the partial third color light beam 152a incident on the first color separation unit 132 and the second color separation unit 134 is 45 degrees, the light transmittance is greater than 95%. That is to say, most of the partial third color light beams 152a penetrate the first color separation unit 132 and the second color separation unit 134 and are incident on a light valve such as a digital micromirror device or a 矽-based liquid crystal panel, thereby forming Colored image noodles. With continued reference to FIG. 1, the illumination system 1 of the present embodiment further includes a Light Uniforming Device 160a, a second light homogenizing element 160b, and a third light homogenizing element 160c. The first light homogenizing element 160a is disposed on the transmission path of the first color light beam 112 and is located between the first light emitting element and the first color separation compensation unit 14A. The second light homogenizing element 160b is disposed on the transmission path of the second color beam 122 and is located between the second light emitting element 12A and the light combining module 13A. Further, the second light homogenizing element 160b is located between the second light emitting element 120 and the second color separation compensating unit 140b. The third light homogenizing element i6〇c is disposed on the transmission path of the third color light beam 152 and is located between the third light emitting elements 15A and 5, and the optical module 130. In the present embodiment, the third light homogenizing element 160c is further located between the third light emitting element 15A and the third color separation compensation unit 14A. Further, in the present embodiment, the first light homogenizing element 160a, the second light homogenizing element 160b, and the third light homogenizing element 160c are, for example, a light integration rod. However, in other embodiments, the first light homogenizing element 160a, the second light homogenizing element 160b, and the third light homogenizing element 160c may also be a lens array (Lens Array) or its 17 201040442 1 1Jw47twf. Doc/n An optical component that is suitable for homogenizing the beam. As shown in FIG. ,, the system (10) of the present embodiment further includes a ship lens ma (two in the figure as an example) and at least one first lens 170b (in the figure, two are shown as examples) n 〇c(^ =, heart: Wei service repair is a quasi-money mirror or other optical element that can collimate the incident beam. As shown in Fig. 1, the first lens 17〇a is disposed in the first color beam 112. In the path, between the first-light homogenizing element 16Ga and the first-separated color complementing unit 140a. The second lens 17〇b is disposed on the transmission path of the second color beam 122 and located in the second light. The uniformizing element 16〇b is connected between the light combining module 130 and the second light separating unit 160b and the second color separating compensation unit 14B in the present embodiment. The third lens 170c is disposed on the transmission path of the third color light beam 152 and is located between the third light homogenizing element 160c and the light combining module 130. In the embodiment, the third lens 17〇c is further located. The three-light homogenizing element 16〇c and the third color separation compensating unit 140c. The first light homogenizing element 160a, the second light homogenizing element 160b, and the third light are both The first color beam 112, the second color light beam 122, and the third color light beam 152 are relatively uniform. The following is a description of the transmittance spectrum of the first and second color separation units with the spectral lines of the respective color lights. The above-mentioned illumination system 100 has the features and the resulting effects. Figure 2A is a first color separation unit of the first embodiment of the present invention (red points 18 201040442 丄 A 30347twf. The transmittance of the doc/n color film), wherein the transmittance spectrum further includes red, green, and spectral lines of the first color separation compensation unit. Referring to FIG. 2A, as shown in FIG. 2A, the transmittance of each color light incident on the red dichroic film changes with the incident angle of each color light, 25 degrees as shown in FIG. 2A. The 65 degree spectral curve is the breakthrough spectral curve incident on the red dichroic film at these angles. It is worth noting that the above phenomenon is particularly noticeable in red light with wavelengths greater than 648 nm. In detail, when the incident angle of red light having a wavelength greater than 648 nm is incident on the red dichroic film is 50 to 65 degrees, the transmittance of the red light penetrating red dichroic film varies greatly, thereby affecting The color uniformity of the screen surface. Therefore, the illumination system 10 of the present embodiment uses the first color separation compensation unit 140a on the transmission path of the first color beam 112 (ie, red light) to block the passage of red light having a wavelength greater than 648 nm. In turn, it can improve the uniformity of the face color of the screen. Further, as can be seen from the spectral line of the first color separation compensation unit 140a and the first color light beam 112 of FIG. 2A, in the present embodiment, the incident angle when the first color light beam 112 is incident on the first color separation compensation unit 140a At 0 degrees, the first color beam 112 having a wavelength in the range of 635 nm to 645 nm has a transmittance of about 50%; the first color beam 112 having a wavelength in the range of 450 nm to 630 nm penetrates. The rate is greater than 94%; the first color beam 112 having a wavelength in the range of 655 nm to 680 nm has a transmittance of less than 1%. Further, the width of the wavelength range in which the transmittance of the first color separation compensation unit 140a falls from 90% to 10% of the penetration spectrum is about 10 nm. That is to say, the first color separation compensation unit 14A plays a role similar to a low pass filter (LowPassFilter), that is, a red light having a wavelength range lower than 648 nm can pass the first color separation compensation unit i4〇a. . 19 201040442 1463 ^uj47twf. Doc/n Figure 2B shows the transmittance spectrum of the part of the color separation unit of the second part of Fig. 2A, the transmittance spectrum of the second color separation single TL color separation film, the green light, the first color separation compensation unit and the first The thread of the dichroic unit. In addition, referring to FIG. 2B with reference to FIG. 2, as shown in FIG. 2B, the transmittance of each color light incident on the blue color separation film also changes according to the angle of the human light of each color light, wherein FIG. 2B The spectral curves of 55 degrees to 65 degrees are the penetration spectrum curves of the red dichroic film incident at these angles, and the spectral curves of 25 degrees to 35 degrees shown in the figure are incident at these angles. The breakthrough spectral curve of the blue dichroic film. It is worth noting that the above phenomenon is particularly noticeable in the green light with a wavelength range of 492 nm to 502 nm and 555 nm to 579 nm, which in turn affects the color uniformity of the screen surface. In detail, when the incident angle of the green light having a wavelength range of 492 nm to 502 nm incident on the blue color separation film is 25 to 35 degrees, the transmittance of the green light penetrating the blue color separation film varies. Larger. Meanwhile, when the incident angle of the green light having a wavelength range of 555 nm to 579 nm incident on the red color separation film is 55 to 65 degrees, the transmittance of the green light penetrating the red color separation film is also large. Therefore, the illumination system 1 of the present embodiment uses the third color separation compensation unit 14〇c on the transmission path of the third color light beam 152 (ie, green light) to block the wavelength less than 502 nm and the wavelength is greater than 555 nano green light passed. This can improve the color uniformity of the image. Further, as can be seen from the spectral lines of the first color separation compensation unit 140a, the second color separation compensation unit 140b, and the third color light beam 152 of FIG. 2B, in the present embodiment, 'when the third color light beam 152 is incident on the first When the incident angle of the color separation compensation unit 14〇a is 0 degrees, the wavelength range is from 560 nm to 570 nm, the 20th 30347twf. Doc/n 201040442 AA JLTU-/ Three-color beam 152 has a transmittance of about 5〇%; the third-color beam 152 with a wavelength range of 5〇8 nm to 555 nm has a transmittance of more than 94%; The third color beam 152 at 575 nm to 600 nm has a transmittance of less than 1%. Further, the width of the wavelength range in which the transmittance of the first color separation compensation unit 140a falls from 90% to the transmission spectral region of ι〇〇/0 is about 10 nm. That is, the role played by the first color separation compensation unit 140a is similar to a Low Pass Filter. In addition, 'the incident angle when the second color beam 152 is incident on the second color separation compensation unit 140b is 0 degrees'. The transmittance of the third color beam 152 having a wavelength range of 493 nm to 503 nm is about 50. %; the transmittance of the third color beam 152 having a wavelength ranging from 508 nm to 555 nm is greater than 94%; and the transmittance of the third color beam 152 having a wavelength range of 450 nm to 488 nm is less than 1%. Further, the width of the wavelength range in which the transmittance of the second color separation compensation unit 14〇b falls from 90% to 10% is about 10 nm. That is to say, the character of the second color separation compensation unit 140b played here is similar to the High Pass Filter. Therefore, the third color separation compensation unit 140c formed by combining the first color separation compensation unit 140a and the second color separation compensation unit 140b is disposed on the path of the third color light beam 152 (green light). Similar to the effect of a BandPass Filter. 2C is a transmittance spectrum diagram of another second color separation unit (blue color separation film) according to the first embodiment of the present invention, wherein the transmittance spectrum includes blue light, green light, and second color separation. The spectral line of the compensation unit. Referring to FIG. 2C, as shown in FIG. 2C, each color light is incident on the blue color separation film 21 201040442 FH485 3UJ47twf. The doc/n transmittance will vary with the incident angle of each color of light. The spectral curve of 25 degrees to 65 degrees as shown in Figure 2c is the penetration of the blue color separation film at these angles. Spectral curve. In order to reduce the above phenomenon, the illumination system 1 of the present embodiment uses the second color separation compensation unit 14〇b on the transmission path of the second color beam 122 (ie, blue light) to block the length of the beam. The passage of the second color light beam 122 of less than 440 nm further improves the uniformity of the scene color. In addition, it can be found from FIG. 2C that the second color beam having a wavelength range of 445 nm to 455 nm when the incident angle of the _th color beam 122 (blue light) is incident on the second color separation compensation unit is 14%. The transmittance of 122 is about 50%; the transmittance of the second color beam 122 having a wavelength range of 460 nm to 64 〇 is greater than 94%; and the wavelength range is 4 〇&quot;〇n to 440 nm. The transmittance of the second color beam 122 is less than 1%. Further, the width of the wavelength range in which the penetration ratio of the second color separation compensation unit 140b falls from 90% to 10% is about 10 nm. That is to say, the role played by the first color separation compensation unit 140b is similar to the High Pass ^ Filter. Therefore, when part of the first color light beam 112a is red light having a wavelength range of 611 to 648 nm, and the incident light is incident on the first color separation unit ία at an incident angle of 45 degrees, the average transmittance thereof is less than 1%. When a part of the second color light beams 122 &amp; is a blue light having a wavelength range of 440 to 485 nm and is incident on the second color separation unit 134 at an incident angle of 45 degrees, the average transmittance thereof is less than 1%. When a part of the third color light beam 152a is green light having a wavelength range of 502 to 555 nm and is incident on the first color separation unit 132 and the second color separation unit 134 at an incident angle of 45 degrees, the average transmittance thereof is greater than 95〇/. . 22 201040442 —*. A 30347twf. Doc/n In the following embodiments, the same or similar reference numerals are used to denote the same or similar elements to simplify the description. Second Embodiment Fig. 3 is a schematic structural view of a lighting system according to a second embodiment of the present invention. The illumination system 200 of the present embodiment is similar to the illumination system 1 of the first embodiment, but the main difference between the two is that the illumination system 2 employs a first frame 382, a second frame 384, and a The third 386 and the fourth 稜鏡 388 replace the functions of the first transparent substrate 182 and the second transparent substrate 184 of the illumination system. As shown in FIG. 3, the second weir 384 bears against the first weir 382. The third jaw 386 bears against the second prism 384 and is opposite the first prism 382. The fourth 稜鏡388 bears the first 稜鏡382 and the third 稜鏡386, and is relative to the second 稜鏡384. In addition, the first color separation unit of the first color separation unit 33 of the present embodiment greets a portion of the first color separation color component ′ where a portion of the first color separation unit 332a is located at the third 稜鏡 386 and the fourth 稜鏡 388 The other portion of the first dichroic unit 33 is located at the junction of the first 稜鏡 382 and the second 稜鏡 384. The second color separation unit 334 can be divided into a portion of the second color separation unit 334a and a portion of the second color separation unit 334b, wherein the portion of the second color separation unit 33 is at the junction of the first 稜鏡 382 and the fourth 稜鏡 388 And another part of the dichotomy unit 334b is located at the parent of the second 稜鏡 384 and the third 稜鏡 386. Except for this, the rest of the architecture is the same as that of the illumination system 100 of the first embodiment, and will not be described herein. 23 201040442 A A i_ru^ ntwf. Doc/n Third Embodiment Fig. 4 is a schematic structural view of a lighting system according to a third embodiment of the present invention. The illumination system 3 of the present embodiment is similar to the illumination system of the first embodiment, but the main difference between the two is: the first wavelength range, the second wavelength range, the fifth wavelength range, and the sixth wavelength range of the two The difference is different, and the third system of the system 300 has no illumination system. *, ' As shown in FIG. 4, in addition to the third color light beam 352 being directly incident on the light combining module 330, the rest of the structure is the same as the illumination system. Further, in the present embodiment, the first wavelength range of the first color light beam 312 is in the green light wavelength range of 492 nm to 579 nm on the solid. Therefore, the first color separation unit 332 corresponding to the first color light beam 312 of the present embodiment is a green color separation film. The first color separation compensation unit 340a is adapted to penetrate a portion of the first light beam 312a of the first color light beam 312 having a wavelength range of 510 nm to 555 nm and is adapted to block the other portion of the first color light beam 312. 2D is a transmittance spectrum diagram of a first color separation unit (green color separation film) according to a second embodiment of the present invention, wherein FIG. 2D further includes spectral lines of blue light, green light, and red light. As shown in FIG. 2D, the transmittance of each color light incident on the green color separation film changes with the incident angle of each color light, and the spectral curve of 25 degrees to 65 degrees shown in FIG. 2D is These angles are incident on the breakthrough spectral curve of the green separation film. In addition, as can be seen from Fig. 2D, when the wavelength range is from 492 nm to 510 nm and 555 nm to 579 nm, the transmittance of the green light incident green dichroic film varies greatly depending on the incident angle. Therefore, in this embodiment, the first color separation compensation unit 340a is placed on the transmission path of the first color light beam 312 (ie, green light) to block the wave 24 201040442 0347twfd 7 j〇347twf. The doc/n is less than 510 nm and the green light with a wavelength greater than 555 nm passes. In this way, the effect of improving the uniformity of the screen surface can be achieved. Further, as can be seen from the spectral line of the first color light beam 312 (green light) of FIG. 2D, when the incident angle of the first color light beam 312 incident on the first color separation compensation unit 34a is 〇, the wavelength range is The first color beam 312 having a wavelength of 506 nm to 516 nm and a wavelength range of 547 nm to 557 nm is approximately 50%; the first color beam 312 having a wavelength ranging from 521 nm to 542 nm The transmittance is greater than 94%; the first color beam 312 having a wavelength in the range of 470 nm to 501 nm and having a wavelength ranging from 562 nm to 600 nm has a transmittance of less than 1 〇/〇. Further, the width of the wavelength range in which the transmittance of the first color separation compensating unit 34〇a falls from 9〇% to 1% is about 1 nanometer. That is to say, the role played by the first color separation compensation unit 340a is similar to that of a band pass filter. Since the third wavelength range of the second color light beam 322 of the embodiment is substantially from 438 nm to 485 nm, and the fourth wavelength range is substantially from 440 nm to 485 nm, the wavelength range is the same as the first wavelength range. The design of the second color separation compensation unit 340b and the second color separation compensation unit 140b of the first embodiment are the same, and will not be described herein. Because the third color separation compensation unit 140c of the first embodiment is not disposed on the transmission path of the third color light beam 352 of the embodiment, the fifth wavelength range is equivalent to the sixth wavelength range, and the quality is from The red wavelength range from 611 nm to 650 nm. Therefore, when a part of the first color light beam 312a is a green light of a wavelength range of 51 nanometers to 555 nanometers and is incident on the first color separation unit 332 at an incident angle of 45 degrees, the average transmittance thereof is less than 1%. . When part of the second color beam 25 201040442 1 jl i*tu^ Jw^47twf. Doc/n 322a is a blue light having a wavelength range of 440 nm to 485 nm, and when incident on the second color separation unit 334 at an incident angle of 45 degrees, the average transmittance is less than 1%. When the third color light beam 352 is red light having a wavelength range of 611 nm to 650 nm and is incident on the first color separation unit 332 and the first color separation unit 334 at an incident angle of 45 degrees, the average transmittance thereof will be More than 95%. It is to be noted that although the third color separation compensation unit is not disposed in this embodiment, in other embodiments, the illumination system 3 may include the third color separation compensation unit 140c as in the first embodiment. It is to be noted that if the illumination system 3 (8) includes the third color separation compensation unit 14 〇 c, the sixth wavelength range is substantially a red wavelength range from 611 nm to 648 nm. Fourth Embodiment FIG. 5 is a schematic structural view of a lighting system according to a fourth embodiment of the present invention. The main difference between the illumination system 400 of the present embodiment and the illumination system of the third embodiment is that the first wavelength range, the second wavelength range, the third wavelength range, the fourth wavelength range, and the fifth The wavelength range and the sixth wavelength range are different. s In the present embodiment, the first wavelength range of the -th color beam 412 is substantially in the range of red light wavelengths from 611 nm to 650 nm. Therefore, the first color separation unit 432 corresponding to the first color light beam 412 of the present embodiment has a red color =, that is, the first minute transfer element 432 is the same as the first minute = 兀 132 of the first embodiment. In addition, since the second wavelength range is substantially 6×1 to a partial red light wavelength range of (10) nm, the first color separation compensation unit 44Ga of the present embodiment is _ and the 26th embodiment of the first embodiment 201004042 _f ^U347twf. The same design of the doc/n compensation unit 140a is not described here. In addition, the third wavelength range of the second color light beam 422 of the present embodiment is from 492 nm to 579 nm, so the second color separation unit 434 corresponding to the second color light beam 422 of the present embodiment is green. The dichroic film, that is, the second dichroic unit 434 is the same as the first dichroic unit 332 of the third embodiment. In addition, since the fourth wavelength range is substantially a partial green wavelength range from 51 nanometers to 555 nanometers, the second color separation compensation unit 440b of the present embodiment is the first one of the third embodiment. The same design of the color separation compensation unit 34〇&amp; is not described here. In addition, since the second color separation compensation unit 140c of the first embodiment is not disposed on the transmission path of the dichroic beam 452 of the embodiment, the fifth wavelength range is equivalent to the sixth wavelength range, and is substantially The blue wavelength range from 438 nm to 485 nm. Therefore, when part of the first color light beam 412a is red light of a wavelength range of 611 nm to 648 nm and is incident on the first color separation unit 432 at an incident angle of 45 degrees, the average transmittance thereof is less than 1%. When part of the second color light beam 422a is green light having a wavelength range of 510 nm to 555 nm and is incident on the second color separation unit 434 at an incident angle of 45 degrees &amp; the average transmittance will be = 1%. . When the two-color light beam 452 is a blue light having a wavelength range of 438 nm to 485 mm, and is incident on the first color separation unit 432 and the second color separation unit 434 at an incident angle of 45 degrees, the average transmittance is greater than 95%. It is to be noted that although the third color separation compensation unit is not disposed in the embodiment, the illumination system 400 in other embodiments may include the third color separation compensation unit 140c as in the first embodiment. It should be noted that if the illumination system 4 includes the third color separation compensation unit 140c, the sixth wavelength range is substantially from 27 201040442 r 1 l^toj juj47twf. Doc/ti 440 nm to 485 nm blue wavelength range. Fifth Embodiment FIG. 6 is a schematic structural view of a lighting system according to a fifth embodiment of the present invention. The illumination system 500 of the present embodiment is similar to the illumination system i of the first embodiment, except that the main difference between the two is that the first color separation unit 132 and the second color separation unit 134 of the embodiment maintain a pitch. In the present embodiment, the first color separation unit 132 may be substantially parallel to the second color separation unit 134. In addition to this, the first color separation unit 132 is more adapted to reflect a portion of the second color light beam 122a from the second color separation unit 134, and to reflect a portion of the first color light beam 112a from the second color separation unit 134. After the first color separation beam 112a and the partial second color light beam 122a reflected by the first color separation unit 132 are separated from the first color separation unit 132, the transmission paths of the partial first color light beam ii2a and the partial second color light beam 122a are merge. Sixth Embodiment Fig. 7 is a schematic structural view of a lighting system according to a sixth embodiment of the present invention. The illumination system 600 of the present embodiment is similar to the illumination system 10A of the first embodiment, but the main difference between the two is that the illumination system 6 of the embodiment further includes a second aperture stop 190a and a second aperture stop. 190b and third aperture stop 190c. As shown in FIG. 7 , the first aperture stop 190 a is disposed on the transmission path of the first color light beam 112 and is located between the first light-emitting element u 〇 and the light-combining module 130 to block the first color incident at a large angle. Beam 112. In the present embodiment, the first aperture stop 190a is located between the first color separation compensation sheet 28 201040442_c/n element 140a and the first light-emitting element 110. However, in other embodiments, the first aperture stop 190a may also be a portion of the first color light beam 112a located between the light combining module 13A and the first color separation compensation unit 140a to block a large angle of incidence. The second aperture stop 190b is disposed on the transmission path of the second color beam 122 and located between the second light-emitting element 12A and the light-combining module 13A to block the second color light beam 122 incident at a large angle. In the present embodiment, the second aperture stop 190b is located between the second color separation compensation unit 140b and the second light emitting element 120. However, in other embodiments, the second aperture stop 19〇b may also be a portion of the second color light beam 122a that is located between the light combining module 130 and the second color separation compensation unit 14〇b to block a large angle of incidence. . The third aperture stop 190c is disposed on the transmission path of the third color light beam 152 and is located between the second light-emitting element 150 and the light-combining module 130 to block the third color light beam 152 incident at a large angle. In the present embodiment, the third aperture stop 190c is located between the third color separation compensation unit 14A and the third light-emitting element 150. However, in other embodiments, the third aperture stop i9〇c Ο may also be located between the light combining module 130 and the third color separation compensation unit 140c to block a portion of the third color light beam 152a incident at a large angle. Table 1 is a data sheet of the chromaticity coordinates of the points of the image plane after removing the three aperture stop of the illumination system 600 and the three color separation compensation units. The chromaticity coordinates are used to indicate the position of the color in the color space. The value in front of the comma in parentheses represents the X coordinate 'and the value after the comma represents the y coordinate. It is assumed here that the length of the image is 3L ‘width is 3W, and the image is divided into 4 images 29 201040442 ι 1 it ~^^47twf. The doc/n limit, and the false S and the central point coordinates are p〇(〇, 〇). In this way, the coordinates (1 1. 5W), (-1. 5L, 1. 5W), (丄5L, -L5W), (1. 5L, q 5W) can represent the position of the four points of the image. (Table 1) Image screen position Chroma coordinates --- Image is bright and wide P0 (0, 0) (0. 2850, 0. 3317) -JU /-X.  188 P1(1L,0) (0. 2858,0. 3178) — 131 P2(1L, 1W) (0. 2871, 0. 3163) ------ 96. 8 P3(0, 1W) (0. 2816, 0. 3246) ----- 145. 2 P4(-1L, 1W) (0. 2895, 0. 3400) Bu-1 - 120. 4 P5(-1L, 0) (0. 2898, 0. 3364) 152. 8 P6(-1L, -1W) (0. 2819, 0. 3346) — 114. 0 P7(0, -1W) (0. 2806, 0. 3313) 164. 4 P8 (1L, -1W) (0. 2819, 0. 3306) 126. 7 P9 (4L/3, 4W/3) (0. 2951, 0. 3262) 67. 6 P10(-4L/3, 4W/3) (0. 2939, 0. 3448) 88. 7 Pll(-4L/3, -4W/3) (0. 2813, 0. 3330) 78. 0 P12(4L/3, -4W/3) (0. 2825, 0. 3467) 86. 3 By comparison of the chromaticity coordinates of each point of Table 1, when the illumination system 600 does not include the second aperture stop 190b, the second color beam (the blue light in this embodiment) is at each point of the screen surface. The maximum difference in chromaticity coordinates is 0. 015, and the maximum difference of y chromaticity coordinates is 0. 036. Table 2 is a chromaticity coordinate table of the points of the image of the illumination system of Table 1 plus the second aperture stop 190b. 30 3U347twf. Doc/n 201040442 Ο (Table 2) Image plane position Chroma coordinates P0(0, 0) (0. 2921, 0. 3244) P1(1L, 0) (0. 2993, 0. 3254) P2 (1L, 1W) (0. 2984, 0. 3205) P3(0, 1W) (0. 2923, 0. 3246) P4(-1L, 1W) (0. 2983, 0. 3353) P5(-1L, 0) (0. 3002, 0. 3330) P6(-1L, -1W) (0. 2972, 0. 3243) P7(0, -1W) (0. 2937, 0. 3208) P8 (1L, -1W) (0. 2967, 0. 3221) P9 (4L/3, 4W/3) (0. 3033, 0. 3137) P10 (-4L/3, 4W/3) (0. 3098, 0. 3363) Pll(-4L/3, -4W/3) (0. 2945, 0. 3221) P12 (4L/3, -4W/3) (0. 3030,0. 3136) Degree 209 ο can be obtained by comparing the chromaticity coordinates of each point in Table 2. When the surface of the system is added with the second aperture stop 190b, the second color beam (this embodiment = blue light) is in the image. The maximum difference of the X chromaticity coordinates of each point on the face is 0. 0177, and the maximum difference of y chromaticity coordinates is 0. 0227. Therefore, the addition of the second aperture 190b can indeed improve the color uniformity of the image plane. Seventh Embodiment FIG. 8 is a schematic structural view of a lighting system according to a seventh embodiment of the present invention. The illumination system 700 of the present embodiment is in phase with the illumination system 200 of the second embodiment. 31 201040442 juj&gt;47twf. Doc/n ^, but the main difference between the two is that the first part of the lighting system is said to be earlier (including the gamma) and the second color separation unit (including Π in this embodiment, respectively, a -v The shaped bending film is known as a second V, f folding film 534, which divides the portion of the first beam 112a and the portion of the second color beam 122a into a (four) degree. Figure 9 is a part of the illumination system of Fig. 8. Enlarged view. Please refer to the figure %, some of the -V-shaped bending film 532a is located at the junction of the first 稜鏡382 丄 丄 ^ ^ 384 'the other part of the first v-shaped 臈 fold is located in the second The junction of the 稜鏡386 and the fourth 稜鏡 388. The portion of the second v-shaped bending film 534a is located at the junction of the first prism 382 and the fourth enamel, and the other portion of the second V-shaped bending film 534b It is located at the junction of the third 稜鏡 386 of the second 鱼 fish. ” Please refer to FIG. 8 and FIG. 9 simultaneously, the first-V-shaped bending film fades to form the first V-shaped groove A, and part of the first color beam U2a is incident on the first V-shaped f-fold film 532 via the first meandering groove A. The second meandering curved film 5 is formed into a second V-shaped groove B, and a part of the second color light beam 122a is via the second The v-shaped groove B is incident on the second V-shaped bending film 534. It can be seen from Fig. 9 that the incident angle Θ of the portion of the first color light beam 122a incident on the second v-shaped bending film 534 is affected by the second V-shaped bending film. The degree of bending of 534 is affected. In detail, when the degree of bending of the second V-shaped bending film 534 toward the second color beam 122a is greater, the second color beam 122a is incident on the second v-shaped bending film 534. The smaller the incident angle, the more the angle of incidence of the second color light 122a can be limited to a certain range, thereby improving the color uniformity of the second color beam 122a on the screen surface. Similarly, in the first The same is true for the part of the color beam U2a. 32 201040442 * ...—3tB47twf. Doc/n It should be noted that in another embodiment, if the first v-shaped bending film 532 and the second v-shaped bending film 534 are respectively disposed on the V-shaped transparent substrate, the same effect can be achieved. . In the above description, the illumination system of the embodiment of the present invention uses a color separation compensation unit to allow a portion of the light beam having a narrower wavelength range to penetrate and block another portion of the light beam while penetrating the above portion of the color compensation unit. The transmittance of the light beam relative to the color separation unit does not change with the incident angle of the incident color separation unit, so that the light beam emitted from the makeup system has a relatively uniform color, thereby improving the uniform color of the image of the image. degree. In addition, the illumination system of the embodiment of the present invention blocks the light beam with a large incident angle by the aperture stop, and the light transmittance of the light beam with a smaller incident angle relative to the color separation unit is less than that of the incident color separation unit. The change in the angle changes, so that the beam emitted by the illumination system has a relatively uniform color. In addition, the illumination system of the embodiment of the present invention adopts a v-shaped color separation unit, which can control the incident angle of the light beam incident thereto to be in a small range, and the transmittance is less than the incident v-shaped color separation unit. The change in the angle of incidence changes, so that the beam emitted by the illumination system has a relatively uniform color. However, the above is only the preferred embodiment of the present invention, and it is not possible to use the scope of the present invention, that is, the simple equivalent change and modification of the invention according to the scope and invention of the invention. All remain within the scope of the invention patent. In addition, any embodiment or patent application of the present invention is not required to achieve all of the objects or features disclosed in the present invention. In addition, the abstract sections and headings are only used to assist in the search of patent documents and are not intended to limit the scope of the invention. w 33 201040442 fi 1453 ju^47twf. Doc/n [Simplified Schematic Description] Fig. 1 is a schematic structural view of a lighting system according to a first embodiment of the present invention. Fig. 2A is a view showing a transmittance spectrum of a first color separation unit (red color separation film) of the first embodiment of the present invention. 2B illustrates a transmittance spectrum of a portion of the first color separation unit of FIG. 2A, a transmittance spectrum of the second color separation unit (blue color separation film), a green light, a first color separation compensation unit, and a second component. The spectral line of the color compensation unit. 2C is a first embodiment of the second color separation unit (blue color separation film) of the first embodiment of the present invention. FIG. 2D is a first color separation unit (green color separation unit) according to a second embodiment of the present invention. The transmittance spectrum of the film). 3 is a schematic structural view of a lighting system according to a second embodiment of the present invention. 4 is a schematic structural view of a lighting system according to a third embodiment of the present invention. FIG. 5 is a schematic structural view of a lighting system according to a fourth embodiment of the present invention. Fig. 6 is a schematic structural view of a lighting system according to a fifth embodiment of the present invention. Fig. 7 is a schematic structural view of a lighting system according to a sixth embodiment of the present invention. FIG. 8 is a schematic structural view of a lighting system according to a seventh embodiment of the present invention. Figure 9 is a partial enlarged view of the illumination system of Figure 8. [Main component symbol description] 100, 200, 300, 400, 500, 600, 700: illumination system 110, 310, 410 · First light-emitting elements 112, 312, 412: first color light beams 112a, 312a, 412a: part First light beam 120, 320, 420: second light-emitting element 34 j〇347twf. Doc/n 201040442 122, 322, 422: second color light beams 122a, 322a: partial second color light beams 130, 330, 430: light combining modules 132, 332, 432: first color separation units 332a, 332b: part A color separation unit 334a, 334b: a part of the second color separation unit 134, 334, 434: a second color separation unit 140a, 340a, 440a: a first color separation compensation unit ❾ 140b, 340b, 440b: a second color separation compensation unit 140c, 340c: third color separation compensation unit 150, 350, 450: third light-emitting elements 152, 352, 452: third color light beam 152a, 352a: partial third color light beam 160a: first light uniformization element 160b: The second light homogenizing element 160c: the third light uniformizing element 〇170a: the first lens 170b: the second lens 170c: the third lens 182: the first transparent substrate 184: the second transparent substrate 190a: the first aperture stop 190b: second aperture stop 190c: third aperture stop 35 201040442 rii^+oj 〇w47twf. Doc/n 382: first 384: second prism 386: third 稜鏡 388: fourth prism 532: first V-shaped bending film 532a, 532b: part of the first V-shaped bending film 534a, 534b: Part of the second V-shaped bending film 534: second V-shaped bending film A: first V-shaped groove B: second V-shaped groove 0: incident angle 36

Claims (1)

3〇347twf.doc/n 201040442 VII. Application for patent circle: 1. An illumination system comprising: a honey-ΓίΓ light-emitting element suitable for emitting a large beam with a first wavelength range, ρ ΓίΓ illuminating, Suitable for emitting a light beam having a third wavelength range, a light combining module, comprising: a first color separation unit disposed on a portion of the _th color beam and a transmission path to the t-th portion of the second color beam, wherein the first color separation unit is adapted to reflect the portion of the first color beam; and a second a color separation unit disposed on a transmission path of the portion of the first color beam and the at least a portion of the second color light beam, wherein the second color separation unit is adapted to reflect the at least part of the second color light beam and is adapted to allow the portion The first color beam is penetrated, and the portion of the color beam reflected by the first color separation unit and the at least part of the second color light beam reflected by the second color separation unit are separated from the light combining module, and the portion is first a color light beam and a transmission path of the at least part of the second color light beam are combined; and a first color separation unit is disposed on the transmission path of the first color light beam and located at the first light emitting element and the combined light Between the modules, wherein the portion of the first color beam will penetrate the first color separation compensation unit, and the other two portions = the first color light beam will be blocked by the first color separation compensation unit, and the portion of the first color The beam has a second wave perimeter, the second wave is in the first Within a wavelength range and narrower than the first wavelength range, the wave of the spectrum of the first color beam falls within the second wavelength range, wherein the first color separation is incident. 37 201040442 jki 146D Ju^47twf.doc/ The incident angle of the n-cell is 10 degrees to 80 degrees, and the average color transmittance of the first color beam penetrating through the δHai-separation unit is less than 30% and/or the incident corner of the first color separation unit is 30. The average transmittance of the portion of the first color beam that penetrates the first color separation unit to 60 degrees is less than 5 〇/0. 2. The illumination system of claim 1, wherein the first color separation compensation unit is a color separation filter. 3. The illumination system of claim 1, wherein the first color separation unit and the second color separation unit are mutually intersected, and the first color separation unit is more suitable for the at least part of the second color The beam penetrates. The lighting system of claim 1, wherein the first color separation unit and the second color separation unit maintain a spacing, and the first color separation unit is more suitable for reflection from the second The at least part of the second color light beam of the color separation unit is adapted to reflect the portion of the first color light beam from the second color separation unit, the portion of the first color light beam reflected by the first color separation unit and the at least part After leaving the first color separation unit, the second color beam merges with the transmission path of the at least part of the second color beam. One? The illumination system of claim 1, further comprising a first, a hair piece adapted to emit a third color light beam, wherein at least a portion of the second color light beam penetrates the first color separation unit, And = at least part of the third color beam is leaving the = mode; after 1 to ^. The transmission path of the third color light beam is merged with the transmission path # of the at least part of the second color light. The illuminating system of the fourth color illuminating and the illuminating system as described in claim 5, further comprising a three-aperture aperture, disposed on the path of at least part of the transmission path of the third color beam 38 2〇1〇40442·_/η And located between the third light emitting element and the light combining module. 7. The illumination system of claim 5, further comprising: a first light homogenizing element disposed on the transmission path of the first color light beam and located at the first light emitting element and the first minute Between the color compensation units; at least one of the lenses, disposed on the transmission path of the first color beam, and located between the first light homogenizing element and the first color separation compensation unit; An element is disposed on the transmission path of the second color light beam and located between the second light emitting element and the light combining module; at least one first lens disposed on the transmission path of the second color light beam and located at Between the second light homogenizing element and the light combining module; a third light homogenizing element disposed on the transmission path of the third color light beam, and located in the third light emitting element and the light combining module And at least one third lens disposed on the transmission path of the third color light beam and located between the third light homogenizing element and the light combining module. 8. The illumination system of claim 5, further comprising: a third color separation compensation unit disposed on the transmission path of the third color light beam and located at the third light emitting element and the combined light Between the modules, wherein the third color light beam emitted by the second light emitting element has a fifth wavelength range, = the third color light beam will penetrate the third color separation compensation unit, and the other portion The third color light beam is blocked by the third color separation compensation unit, and the portion of the second color light beam has a sixth wavelength range, the sixth wavelength range falls within the fifth wavelength range, and is smaller than the fifth wavelength range Narrow, the peak of the spectrum of the third color beam falls within the sixth wavelength range. 39 201040442 Fl 14 «^ juj47twf.doc/n 9. The illumination system of claim 8, wherein the third color separation compensation unit is a color separation dimmer. 10. The illumination system of claim 8, further comprising a second color separation compensation unit IT disposed on the transmission path of the second color light beam and located in the third light emitting element and the light combining mode Between the groups, wherein the second color light beam emitted by the second light emission has a third wavelength range, and part of the second color light beam penetrates the second color separation compensation unit, and the other portion The color light beam is blocked by the second color separation compensation unit, and the portion of the color light beam has a fourth wavelength system, and the fourth wavelength range falls within the second wavelength range and is converted to three wavelengths, the second The peak of the spectrum of the color beam falls within the fourth wavelength range. u. The illumination system according to the 1G item of the patent of Zhongqing, wherein the brother-separation compensation unit is a color separation filter. The illumination system of claim 8, wherein the portion of the first-color beam having an incident angle of 45 degrees into the color separation unit has a transmittance of less than 1%. a person who emits the second color separation=the angle of the person whose angle of incidence is 45 degrees, the penetration of the second color beam that penetrates the second minute== is less than 1%, and the person shoots the first color separation unit and the first The transmittance of the portion of the third color light beam passing through the knife color sheet S and the second color separation unit is greater than 95%. The illumination system according to claim 12 Where ί long circumference is substantially from 611 nm to (four) nanometer, the second circumference is from 611 to (10) nanometer, the third wavelength is 438 nm to 485 nm, the fourth The wavelength range is substantially 40 30347twf.doc/n 201040442. It is from 440 nm to 485 Nye, the fifth wave is from nanometer to 579 nm, and the sixth wave is to 555 nm.奈14· As in the scope of claim 12, the first-wavelength range is substantially from 492 nm to 579, 22 nm to 555 nm, and the second solid λ is from 438 nm to 485. The nanometer, Ο 上 is from Yangnai to 485 ♦ meters, the U wavelength range is substantially == nanometer, and the sixth wavelength range is substantially the same as that of the illumination system described in claim 12, The wavelength range of the younger brother is substantially from 611 nm to 65 〇 2 „substantially from 611 nm to 648 nm, the third two records = the top is from 492 nm to 579 nm, the first The four wavelength range is substantially from about 51 nanometers to 555 nanometers, and the fifth wavelength range is substantially from 438 to 485 nanometers. The sixth wavelength range is substantially from 44 to 485 nanometers. The illumination system of claim 1, further comprising: a first aperture stop disposed on the transmission path of at least a portion of the first color beam and located in the first light emitting element Between the light modules. The illumination system of claim 2, further comprising: a second aperture stop disposed on the transmission path of at least a portion of the second color beam and located in the second illumination element and the combined optical mode Between groups. 18. The illumination system of claim 1, wherein the 41 201040442 ju:)^7twf.doc/n the first color separation soap element is one less than the 'bow, the scorpion, which forms a groove' And the part of the first-color light beam is formed by the second two, V-shaped concave-V-shaped bending film, the second color separation unit ^ (three) is incident on the third 匕 early 7L as a second V-shaped savage formation - second a V-shaped groove, and the at least part of the film, the second V-shaped groove of which is incident on the second v, f film. First, the illumination system according to the item 19 is further included. The light transmissive unit is a dichroic film; and W! The S-light substrate is mounted on the first-transparent substrate, and the second color separation unit is a dichroic film. And the younger brother, a patent, a younger brother, a prism, guilty of the first prism; the mirror; the 2 prism is 'received by the second cymbal, and the first ridge 1 稜鏡, the 第 稜鏡The third in the second 稜鏡', wherein the fresh-separation unit and the second sub-intersection intersect each other, and the portion of the dichro-separation unit is located at a parent of the first 稜鏡 and the second ocular lens, and Another part of the first color separation unit is a junction of I and the fourth image, and a portion of the second color separation is a boundary between the first and the fourth and the fourth The unit is located at a boundary between the second ridge and the third ridge, and the twentieth color unit and the second color separation unit are each a color separation film 42