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EP3186675A1 - Dispositif d'éclairage équipé d'un ensemble de conversion de longueur d'onde - Google Patents

Dispositif d'éclairage équipé d'un ensemble de conversion de longueur d'onde

Info

Publication number
EP3186675A1
EP3186675A1 EP15750007.5A EP15750007A EP3186675A1 EP 3186675 A1 EP3186675 A1 EP 3186675A1 EP 15750007 A EP15750007 A EP 15750007A EP 3186675 A1 EP3186675 A1 EP 3186675A1
Authority
EP
European Patent Office
Prior art keywords
light
excitation light
reflection
wavelength conversion
lighting device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15750007.5A
Other languages
German (de)
English (en)
Inventor
Ulrich Hartwig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Osram GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osram GmbH filed Critical Osram GmbH
Publication of EP3186675A1 publication Critical patent/EP3186675A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
    • G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/141—Beam splitting or combining systems operating by reflection only using dichroic mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/147—Beam splitting or combining systems operating by reflection only using averaging effects by spatially variable reflectivity on a microscopic level, e.g. polka dots, chequered or discontinuous patterns, or rapidly moving surfaces
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2066—Reflectors in illumination beam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B33/00—Colour photography, other than mere exposure or projection of a colour film
    • G03B33/08—Sequential recording or projection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2461—Illumination

Definitions

  • the present invention relates to a
  • Wavelength conversion arrangement for converting the excitation light into conversion light.
  • Light sources of high luminance can be used, for example, in the field of endoscopy or in projection devices, for which present
  • Excitation light source high power density for example, a laser to combine with a spaced-apart phosphor element.
  • Lighting devices are known which a
  • Lighting devices comprise a
  • Excitation light source that excites the phosphor to emit light at a wavelength different from the excitation light wavelength.
  • excitation light in the blue spectral range is used.
  • a phosphor wheel can also be provided as a wavelength conversion arrangement, which is rotated about an axis of rotation and is irradiated on a circular track with excitation light.
  • different color phosphors can also be arranged on the phosphor wheel successively in the direction of rotation, so that a temporal sequence of differently colored conversion light, for example red (R), green (G) and blue (B) light is produced. The colors of the conversion light then sequentially clamp together an RGB color space.
  • the document CN 102385233 A shows a lighting device for a projector with an excitation laser, a phosphor wheel for
  • Wavelength conversion of the excitation laser light in conversion light and a filter wheel, for the spectral filtering of the conversion light The filter wheel and the phosphor wheel are arranged on a common axis and thus rotate at the same speed.
  • the excitation laser light is reflected by a dichroic mirror on the phosphor wheel.
  • the conversion light reflected back from the phosphor wheel passes through the dichroic mirror and then strikes the filter wheel.
  • the excitation laser light can pass the phosphor wheel spectrally unchanged and is fed to the dichroic mirror via a so-called wrap-around loop and combined with the conversion light path.
  • the object of the present invention is to specify an alternative illumination device for using the excitation light and the conversion light.
  • an illumination device for generating light by means of a wavelength conversion arrangement comprising at least one excitation light source, which is designed to emit excitation light, a wavelength conversion arrangement arranged in an excitation light path having at least one wavelength conversion element, which is designed, that of the at least one excitation light source at least partially converting excitation light irradiated onto the wavelength conversion element onto a local excitation light path at least partially into conversion light and emitting the conversion light into the same half space from which the excitation light radiates onto the surface of the wavelength conversion element and at least one reflection element designed for the at least one an excitation light source on the local excitation light path at least temporarily irradiated to the reflection element Anreu reflected light at least partially unconverted as reflection light so that the reflection light is deflected by a change in direction away from the local excitation light path and on a reflection light path, an optical separation element, which is arranged and designed, the coming of the at least one wavelength conversion element conversion light to separate from the excitation light coming on the local excitation
  • blue light i.e., light in the blue spectral range
  • blue light is preferable, especially blue
  • the excitation light can be used in addition to the excitation of a phosphor in addition also as a blue color channel (blue reflection light).
  • the wavelength conversion arrangement so that the excitation light is not only wavelength-converted (also abbreviated to conversion light in the following) but additionally and specifically, at least temporarily and at least partially unconverted, ie. spectrally unchanged, is reflected (hereinafter abbreviated reflection light called).
  • the wavelength conversion arrangement has at least one reflection element in order to separate the reflection light into a space spatially separated from the excitation light path and the conversion light path
  • the spatial separation of conversion light path and reflected light path is a separate effect on the beam properties of reflected light and conversion light possible before the reflection light and the conversion light are merged again.
  • the spatial separation of conversion light and reflection light is inventively achieved in that the reflection light is deflected by a change in direction of the local excitation light path, ie the excitation light path at the location of the reflection, away and for further use on a reflection light path.
  • a measure of the change in direction is the angle of change a3 between the local optical axis LI of the excitation light path and the local optical axis L2 of the reflection light path.
  • the respective optical axis of the respective light path is at the intersection with the surface of the wavelength conversion element or the
  • Reflection element meant.
  • the change in direction is achieved, for example, in that the wavelength conversion element, for example a phosphor layer, and the reflection element, for example a mirror surface, are formed on a rotatable body such that the local optical axis LI of the excitation light path with the associated surface normal N1 of the
  • Wavelength conversion element forms an angle a, which is different from the angle a2 between the local optical axis LI of the excitation light path and the corresponding surface normal N2 of the reflection element.
  • the surface of the Wavelength conversion element and the surface of the reflection element is not arranged in a common plane but selectively tilted against each other or curved differently. In this way, the reflection light is prevented from being reflected back on the conversion light path, that is, al is equal to a2. Instead, the reflection element is formed with respect to the wavelength conversion element so that the reflection light is reflected away from the conversion light path.
  • the wavelength conversion element is designed so that the conversion light radiates into the same half-space from which the excitation light radiates onto the surface of the wavelength conversion element.
  • this enables a good spatial separation of excitation light and reflection light, but on the other hand also a sufficiently compact arrangement.
  • the change angle a3 is better greater than 40 ° and less than 140 °, even better greater than 60 ° and smaller 120 °, preferably 90 °.
  • the angle of change a3 can also be superimposed by a scattering angle smaller than 30 °.
  • the reflection element is suitably diffusely mirrored, for example, so that, for example, more than 50% of the incident radiation is reflected in a full angle of 30 °.
  • the excitation light is condensed onto the wavelength conversion device by means of collection optics, i. the at least one wavelength conversion element or the at least one reflection element, focused.
  • the collection optics is optically between the excitation light source and the
  • Wavelength conversion arrangement arranged.
  • Collecting optics also serves to collect and collimate the conversion light emitted by the wavelength conversion element .
  • the collection optics is thus designed, on the one hand, the excitation light of the excitation light source on the
  • Focusing wavelength conversion arrangement on the other hand, to collect and collimate the light emitted by the wavelength conversion element of the wavelength conversion arrangement conversion light.
  • Reflection element preferably arranged, at least temporarily, in or at least in the vicinity of the focus of the collection optics or they move in or at least in the vicinity of the focus of the collection optics through the excitation light beam.
  • the excitation light impinging on the wavelength conversion element within the laser spot is detected by the Wavelength conversion element converted into conversion light and radiated, for example, in a Lambertian distribution in the same half-space from which the excitation light irradiates the surface of the wavelength conversion element.
  • the surface of the wavelength conversion element is preferably formed at least in the region of the point of intersection with the optical axis LI of the excitation light path substantially perpendicular to the optical axis LI. Then, the collimated conversion light collected by the collection optics on the excitation light path is returned to the excitation light in the opposite direction.
  • the reflection element is preferably followed by a collimation optics to divergently reflected in focus from the reflection element
  • the spatial separation of excitation light and conversion light can also be a partial overlap of excitation light path and
  • the optical separation element provided in this case and in the other preferred case for the spatial separation of the conversion light from the counter-rotating excitation light preferably comprises a dichroic Mirror.
  • This dichroic mirror is arranged obliquely, preferably at 45 °, in the excitation light or conversion light path.
  • the dichroic mirror is reflective to the excitation light and the conversion light transmissive or vice versa. In this way, the dichroic mirror in any case separates the overlapping portion of the excitation light and the conversion light path in different directions.
  • Such a dichroic mirror optical arrangement for separating excitation and reverse conversion light is particularly compact.
  • the optical merging arrangement provided for combining the conversion light with the reflection light may also comprise a dichroic mirror.
  • the optical merging arrangement may also comprise at least one deflection mirror.
  • the at least one deflection mirror is arranged in the reflection light path and is designed to deflect the reflection light onto the dichroic mirror of the merging arrangement.
  • the dichroic mirror of the optical isolator and the dichroic mirror of the optical combiner may also be one and the same dichroic mirror.
  • the lighting device is particularly compact.
  • a second deflection mirror is advantageous for the merging device.
  • the optical integrator homogenizes the incident light beams, for example by multiple reflection on the way from the integrator input to the output.
  • the optical integrator can be designed, for example, as an elongated conical TIR (TIR) optical system.
  • TIR conical TIR
  • suitable optical elements can be arranged in the reflection light path and / or the conversion light path, for example optical scattering elements.
  • optical scattering elements in the reflection light path can reduce the coherence effects (speckle).
  • the wavelength conversion arrangement may be formed as a body rotatable about an axis, on which the wavelength conversion element and the reflection element are arranged.
  • the wavelength conversion element can be formed, for example, as at least one phosphor layer.
  • the phosphor layer may also comprise a phosphor mixture, ie a mixture of several conversion materials.
  • precisely one respective conversion material corresponding to the desired color light channel is preferably provided for a respective phosphor layer, that is, for example, a yellow phosphor such as (Yo.96 Ceo.04) 3 Al 3 . 75 Gai.25 O12 for the yellow light channel, a green phosphor such as YAG: Ce (Yo.96Ceo.04) 3 Al 3 .
  • the reflection element can be configured, for example, as a mirror coating or, in the case of a metallic body, as a polished, possibly polished section.
  • the wavelength conversion arrangement may be formed as a phosphor wheel, which is rotatable about an axis of rotation of the phosphor wheel.
  • the rotatable body is designed as a circular disk-shaped carrier of the phosphor wheel.
  • the wavelength conversion element for example a phosphor layer, is arranged in the form of a circular ring segment.
  • two or more phosphor segments may be sequentially arranged on the phosphor wheel.
  • the conversion light is emitted back from the irradiated phosphor opposite to the incident excitation light beam, ie al is equal to 0 °.
  • the reflection element can be designed, for example, as a conical circular-mirror segment on the support. Due to the conical surface of the reflection element of the reflection light beam undergoes a change in direction with respect to the excitation light beam or the conversion light beam, ie a2 is not al and thus the change angle a3 is greater than 0 °.
  • the excitation light source preferably comprises at least one laser diode.
  • Each laser diode can be equipped with at least one own and / or common optics ("multi-lens array") for beam guidance, eg at least one Fresnel lens, collimator, etc.
  • multi-lens array for beam guidance, eg at least one Fresnel lens, collimator, etc.
  • Other excitation light sources are also conceivable, such as those Superluminescent diodes, LEDs, organic LEDs and the like.
  • the lighting device as a light source, for example in a projection device or an endoscope and for room lighting purposes, industrial and medical applications is advantageous.
  • use in apparatus for light projection for entertainment purposes, as well as data, film and video projection is preferred.
  • Fig. La an embodiment of an inventive
  • FIG. 1c Position according to the reflection light phase, 1c the embodiment from FIG. 1a in a conversion light phase, FIG.
  • Fig. Ld the phosphor wheel of Fig. Lc in a
  • FIG. 2a shows an embodiment of an inventive
  • Illumination device with phosphor wheel and scattering elements in a reflection light phase
  • FIG. 3a shows a further embodiment of a lighting device according to the invention with phosphor wheel in a reflection light phase
  • Fig. La shows a schematic representation of a lighting device 1 according to an embodiment of the invention.
  • the illumination device 1 comprises an excitation light source 2 embodied as a laser device.
  • the laser device may be formed, for example, as a laser diode matrix comprising a plurality of laser diodes.
  • the excitation light 3 is also used as a blue color channel. Therefore, the excitation light source 2 is designed to excite light 3 in the blue spectral range, for example in the range 440-470 nm, particularly preferably at about 450 nm to emit. In addition, for many phosphors this is a suitable excitation wavelength.
  • the preferably at least approximately collimated blue laser light 3 of the excitation light source 2 is directed by means of a dichroic mirror 4 to a wavelength conversion arrangement which is designed as a phosphor wheel 5.
  • a dichroic mirror 4 to a wavelength conversion arrangement which is designed as a phosphor wheel 5.
  • FIG. 1b shows the phosphor wheel 5 in the orientation according to FIG. 1a in a schematic cross section (bottom) and a corresponding plan view (top).
  • Fluorescent wheel 5 comprises a circular disk-shaped carrier 6, which is rotatably mounted about the axis of rotation A.
  • the side of the carrier 6 facing the incident excitation light 3 is provided with a circular-segment-segment-shaped wavelength conversion element y, which is embodied as a yellow phosphor layer.
  • the carrier 6 has a reflection element 7 designed as a conical circular-mirror segment, which adjoins the wavelength conversion element y and reflects blue light spectrally unchanged.
  • the full opening angle ß of the cone is here about 90 °.
  • the illumination device 1 shown in FIG. 1 a is thus provided for a chronologically sequential sequence of yellow conversion light (Y) or blue reflection light (B). It is suitable, for example, as a time-averaged white-light source for the human eye.
  • more or other phosphor segments may be provided, for example additionally or alternatively
  • Phosphor segments with a green phosphor layer (for green conversion light G) and / or red phosphor layer (for red conversion light R) for an RGB or RGBY light source Likewise, more than one reflection element can be provided.
  • the reflection element 7 of the phosphor wheel 5 rotates through the excitation light path of the blue laser light 3.
  • the laser spot 9 focused by means of a first collecting optics 8 strikes the reflection element 7 and is reflected by it onto a collimating optics 10.
  • the surface normal N2 of the conical circular-mirror segment 7 forms an angle a2 of 45 ° with the local optical axis LI of the blue excitation light 3, ie the respective optical axes LI and L2 of the incident excitation light 3 or emergent reflection light 3 form a change angle a3 of 90 °.
  • the blue reflection light 3 passes through two 45 ° deflecting mirrors 11, 12 onto the rear side of the dichroic mirror 4 and is directed by the latter via a second collection optics 13 into an optical integrator 14.
  • the optical integrator 14 is, for example, a suitable glass rod containing the sequential blue and yellow Spatially homogenized and temporally integrated light on the basis of multiple internal total reflection for the human eye mixed into white mixed light.
  • the two deflecting mirrors 11, 12 and the dichroic mirror 4 are arranged in a common plane for the sake of simplicity and each tilted by 45 ° to the respective optical axis.
  • deviating angles can also be set, as long as this only affects the geometric arrangement of the individual optical elements and not the basic function of the arrangement.
  • a conversion light phase of the lighting device 1 is shown, during which the yellow phosphor segment y of the phosphor wheel 5 rotates through the light path of the blue laser light 3 therethrough.
  • FIG. 1 d shows the phosphor wheel 5 already shown in FIG. 1 b here in the orientation according to FIG. 1 c, namely rotated further by 180 °.
  • the blue laser light 3 is converted by the yellow phosphor of the wavelength conversion element y into conversion light in the yellow spectral range (hereinafter also abbreviated to "yellow conversion light” (Y)), which is deflected by the dichroic mirror 4 blue laser light 3 by means of collection optics 8 on the
  • Wavelength conversion element y focused and generated there the laser spot 9.
  • the incident within the laser spot 9 blue laser light is through the Yellow phosphor converted into yellow conversion light 15 and emitted approximately in a Lambertian distribution in the same half-space from which the excitation light 3 irradiates the surface of the wavelength conversion element y. Since the wavelength conversion element y is arranged at least locally substantially perpendicular to the local optical axis LI of the excitation light path, the
  • Conversion light 15 transmits the dichroic mirror 4, which is transparent to the yellow conversion light 15, and is then directed via the second collection optics 13 into an optical integrator 14.
  • the first dichroic mirror 4 connected between the first excitation light source 2 and the first collection optics 8 spatially separates the conversion light 15 from the counterpropagating light 3 coming from the excitation light source and continues it on the conversion light path starting on the yellow phosphor layer y End opens into the optical integrator 14.
  • the dichroic mirror 4 guides the conversion light 15 transmitted through it with that of its rear side reflected reflection light together.
  • the dichroic mirror 4 functions both as an optical separation element for the excitation light 3 and the conversion light 15, and as an optical merging device for the conversion light 15 and the reflection light 3.
  • the light emitted by the optical integrator 14 is transmitted at fast enough light sequences, e.g. during a rotation of the phosphor wheel 5 of at least 25 revolutions per second, perceived as a mixed light with yellow (conversion light 15) and blue (reflection light 3) color components.
  • the dichroic mirror 4 for the blue excitation light 3 may be designed to be transmissive and reflective to the yellow conversion light 15. Then only the two positions for the excitation light source 2 and the optical integrator 14 are to be interchanged.
  • the annular circulating phosphor layer can also comprise two or more sequentially successive phosphors, for example a red and a green phosphor for RGB mixed light.
  • the color location of the mixed light can be adjusted by the weighting of the colored light components.
  • Lighting device 1 done.
  • FIG. 2a, 2b show schematic representations of the reflection or conversion phase of a variant l 1 of In Fig. La, lc lighting device shown 1. In contrast to the latter is in the
  • Conversion light 15 and excitation light 3 provided first dichroic mirror 4 ⁇ not for the blue
  • Excitation light 3 but designed for the yellow conversion light 15 reflective. This is with this
  • the second dichroic mirror 4 ⁇ ⁇ is for the blue one
  • Conversion light 15 designed mirroring.
  • the reflection light 3 and conversion light 15 merged by means of the second dichroic mirror 4 ⁇ ⁇ are directed into the optical integrator 14 with the aid of a further collecting optics 13 optically connected downstream of the dichroic mirror 4 ⁇ ⁇ .
  • the spatial separation of the conversion light path and reflection light path achieved by the particular configuration of the wavelength conversion arrangement 5 and in particular of the reflection element 7 makes it possible to arrange therein optical elements such as, for example, a scattering element 16, 17.
  • optical elements such as, for example, a scattering element 16, 17.
  • the spatial intensity and angular distribution of conversion light 15 and reflection light 3 can be equalized before being merged with the second dichroic mirror 4 ⁇ ⁇ .
  • 3a, 3b show schematic representations of the reflection phase or conversion phase of a further variant 1 'of the illumination device according to the invention, which differs from variant 1 essentially by dispensing with the scattering elements and in that the second dichroic mirror 4 is designed to be complementary is reflective, ie transmissive to the blue reflection light 3 and transparent to the yellow conversion light 15.
  • the geometric arrangement of the optical integrator 14 is adapted accordingly.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Astronomy & Astrophysics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

L'invention concerne un dispositif d'éclairage (1) comprenant une source de lumière d'excitation (2) et un ensemble de conversion de longueur d'onde; le dispositif de conversion de longueur d'onde est conçu de telle sorte que la lumière d'excitation (3) est non seulement convertie en longueur d'onde pour donner une lumière convertie, mais est en outre réfléchie de manière ciblée sous forme lumière réfléchie (3), au moins temporairement, et au moins partiellement sans conversion, autrement dit sans modification spectrale. À cette fin, l'ensemble de conversion de longueur d'onde comprend au moins un élément réfléchissant (7) qui sert à diriger la lumière réfléchie (3) sur un trajet de lumière réfléchie spatialement séparé du trajet de lumière d'excitation et du trajet de lumière convertie. Un miroir dichroïque (4) sépare d'une part la lumière convertie de la lumière d'excitation, et la fait converger d'autre part avec la lumière réfléchie (3) déviée.
EP15750007.5A 2014-08-29 2015-07-30 Dispositif d'éclairage équipé d'un ensemble de conversion de longueur d'onde Withdrawn EP3186675A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014217326.4A DE102014217326A1 (de) 2014-08-29 2014-08-29 Beleuchtungsvorrichtung mit einer Wellenlängenkonversionsanordnung
PCT/EP2015/067486 WO2016030121A1 (fr) 2014-08-29 2015-07-30 Dispositif d'éclairage équipé d'un ensemble de conversion de longueur d'onde

Publications (1)

Publication Number Publication Date
EP3186675A1 true EP3186675A1 (fr) 2017-07-05

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EP15750007.5A Withdrawn EP3186675A1 (fr) 2014-08-29 2015-07-30 Dispositif d'éclairage équipé d'un ensemble de conversion de longueur d'onde

Country Status (4)

Country Link
EP (1) EP3186675A1 (fr)
CN (1) CN208367333U (fr)
DE (1) DE102014217326A1 (fr)
WO (1) WO2016030121A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109976078B (zh) * 2016-08-04 2022-01-11 深圳光峰科技股份有限公司 发光装置及投影系统
JP7400417B2 (ja) 2019-11-29 2023-12-19 株式会社リコー 光源光学系、光源装置及び画像表示装置
CN113126408A (zh) * 2020-01-16 2021-07-16 深圳光峰科技股份有限公司 波长转换装置、光源装置及投影系统
CN114063375B (zh) * 2020-08-10 2024-01-23 成都极米科技股份有限公司 一种光源系统
CN113031381B (zh) * 2021-03-05 2022-03-04 青岛海信激光显示股份有限公司 光源组件和投影设备
JP2023000088A (ja) * 2021-06-17 2023-01-04 セイコーエプソン株式会社 光源装置及びプロジェクター

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009112961A1 (fr) * 2008-03-10 2009-09-17 Koninklijke Philips Electronics N.V. Source de lumière laser et luminaire
US20120106126A1 (en) * 2010-11-01 2012-05-03 Seiko Epson Corporation Wavelength conversion element, light source device, and projector
CN102385233A (zh) 2011-10-29 2012-03-21 明基电通有限公司 光源模组以及使用此光源模组的投影装置
CN104991406B (zh) * 2011-11-10 2017-01-25 深圳市光峰光电技术有限公司 一种光源系统、照明装置及投影装置
DE102011087112B4 (de) * 2011-11-25 2022-02-10 Coretronic Corporation Leuchtvorrichtung mit Leuchtstoff auf einem beweglichen Träger
DE102012211837A1 (de) * 2012-07-06 2014-01-09 Osram Gmbh Beleuchtungsvorrichtung mit Leuchstoffanordnung und Laser

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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