WO2009154134A1 - 光ビーム走査型画像投影装置 - Google Patents
光ビーム走査型画像投影装置 Download PDFInfo
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- WO2009154134A1 WO2009154134A1 PCT/JP2009/060692 JP2009060692W WO2009154134A1 WO 2009154134 A1 WO2009154134 A1 WO 2009154134A1 JP 2009060692 W JP2009060692 W JP 2009060692W WO 2009154134 A1 WO2009154134 A1 WO 2009154134A1
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- light
- light beam
- optical
- image projection
- beam scanning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/317—Convergence or focusing systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
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- 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
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
Definitions
- the present invention relates to a light beam scanning image projection apparatus that scans a light beam and projects the image onto a screen or a three-dimensional space to display an image.
- the direction of the light beam and the spot size are unstable depending on the use environment of the apparatus. It is related with the correction mechanism.
- Image display devices used as monitors for televisions and computers in homes and public places are becoming larger as the quality of displayed images increases.
- portability and low power consumption are also required.
- portable information terminals with a display have become widespread due to the development of wired and wireless network infrastructure.
- Patent Document 1 As a display capable of displaying a large screen with a small device, for example, there is a projector type display (see Patent Document 1 and Patent Document 2 below).
- Patent Document 1 three types of laser light sources that emit red, green, and blue laser light, a spatial light modulator that optically modulates the laser light according to a video signal, and light modulation are formed.
- a laser display device including an image forming means for projecting an image on a screen to form a color image and an optical lens system is disclosed.
- Patent Document 2 discloses a micro projector that displays an image by reflecting a light beam that receives an image signal from a light source having a plurality of wavelengths to a mirror and scanning the direction of the mirror. Yes.
- the light source does not always emit an ideal beam.
- the light intensity varies with time and becomes noise, or the position of the peak wavelength and the spectrum width vary, so the range of colors that can be displayed changes.
- Patent Document 2 in order to make a pixel to be displayed by correcting such a variation in the display image, the light of the light source is irradiated on a certain surface, the interacted light is detected, and the characteristics of the light source are detected. It is disclosed to control the light output of a light source by removing the influence of fluctuation.
- Patent Document 1 Although it is described in Patent Document 1 that a light source for a small projector has light intensity noise and wavelength fluctuation, the temperature of the light source varies depending on the use environment, or the operation of MEMS (Micro Electro Mechanical Systems) that scans a mirror is performed. In addition to being unstable at the initial stage of startup, there is a possibility that the optical axis and shape of the light beam after reflecting the MEMS may change.
- MEMS Micro Electro Mechanical Systems
- the light source is a semiconductor laser
- the optical axis after replacement is often shifted from the optical axis before replacement.
- the spots of the light beams of three colors, red, green, and blue, that should form one pixel by overlapping the same point are shifted on the projected screen, and the color of the image is separated or disturbed. Looks.
- the present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to project in a light beam scanning image projection apparatus by changing the use environment, changing with time, changing light sources, or the like. It is an object of the present invention to provide a technique capable of automatically preventing deterioration of an image when the image quality of the image is deteriorated.
- a plurality of light sources that emit light beams having different wavelengths, a drive unit that modulates the intensity of each light beam according to an image signal, and an optical axis matching unit that matches the optical axes of the light beams.
- the optical axis matching means adjusts at least one of a plurality of optical elements and at least one position and inclination of the optical elements.
- an adjustment unit that controls the adjustment unit based on a detection result of the detection unit, a detection unit that detects a deviation between a spot center of each light beam and a center reference point, and the optical matching Position adjusting means for adjusting at least one of the position and inclination of the optical element of the means so that the optical axes of the light beams coincide with each other.
- each of the plurality of light sources includes a semiconductor laser that emits blue, green, and red light beams, or a solid-state laser that emits a second harmonic light beam excited by the semiconductor laser. .
- the position correction means adjusts the propagation direction of each light beam based on the detection result of the detection means.
- the optical axis matching means has an optical system that focuses a plurality of light beams generated from the respective light sources on one axis, and the optical system includes a dielectric film mirror and a dielectric film filter. , Including at least one component in the lens, and the position adjusting means controls the adjustment unit, and the position of the dielectric film mirror of the optical system, the dielectric film filter, and at least one component in the lens, The propagation direction of each light beam is adjusted by changing the inclination.
- the detection means includes a pinhole and a plurality of light receiving elements that are arranged around the center reference point and into which light transmitted through the pinhole is incident.
- the reflected light from the projection surface of the light beam emitted from each of the light sources is incident, and the position adjustment unit controls the adjustment unit based on output signals of the plurality of light receiving elements, and the optical matching At least one position and / or inclination of the optical element of the means is adjusted so that the optical axes of the light beams coincide with each other.
- the detection means includes a pinhole and a plurality of light receiving elements that are arranged around the center reference point and into which light transmitted through the pinhole is incident.
- the light beam that has passed through the beam splitter among the light beams emitted from each of the light sources is incident, and the position adjusting unit controls the adjusting unit based on output signals of the plurality of light receiving elements, At least one position and / or inclination of the optical element of the optical matching means is adjusted to match the optical axes of the light beams.
- the position adjusting means adjusts the beam diameter of each light beam based on the output signals of the plurality of light receiving elements.
- the optical axes of the light beams emitted from the respective light sources are matched in a time zone in which the image signal is not input.
- the light beam scanning image projection apparatus of the present invention it is possible to automatically prevent deterioration of the image quality of the projected image due to replacement of the light source or the like.
- FIG. 5 is a timing chart when the light beam adjusting mechanism of the light beam scanning image projection apparatus of each embodiment of the present invention is operated not only before use but also during image display.
- FIG. 1 is a cross-sectional view of an essential part for explaining a light beam scanning image projection apparatus according to a first embodiment of the present invention.
- the light beam scanning image projection apparatus of the present embodiment includes a light source 1 that emits light beams of different wavelengths, an optical axis matching unit 2 that includes a plurality of optical elements that substantially match the optical axes of the plurality of light beams, It has means 3 for scanning a plurality of light beams, means 4 for sending an image signal to the drive unit of the light source 1, and a drive unit 5 for modulating the intensity of the plurality of light beams according to the image signal, and the optical axis is The substantially coincident light beam is projected onto the screen 6.
- At least one of the optical elements included in the optical matching means 2 is movable with respect to the housing 7 holding the light source 1, and a part of the plurality of light beams is separated by the beam splitter 8, and is detected by the detection means 9.
- the detection unit 9 includes a light receiving element that can measure the intensity of the light beam for each of the two regions divided into right and left, and detects a deviation between the spot center of each light beam and the center reference point.
- the correction signal transmission unit 10 Based on the detection result of the detection means 9, the correction signal transmission unit 10 generates a correction signal for correcting the deviation between the spot center of each light beam and the center reference point, and the housing 7 of the optical matching means 2. To the position adjustment mechanism of the optical element that is movable, the optical axes of the respective light beams are made coincident.
- the light source 1 is, for example, a light emitting element that emits two types of light, yellow having a peak near a wavelength of 570 nm and blue having a peak at 460 nm.
- FIG. 2 is a cross-sectional view of a main part for explaining the light beam scanning image projection apparatus according to the second embodiment of the present invention.
- FIG. 3 is a cross-sectional view of an essential part for explaining the optical axis matching means 2 shown in FIG.
- the light source 1 that emits light of different wavelengths is composed of a red laser 11, a green laser 12, and a blue laser 13.
- red is selected from 600 nm to 700 nm
- green is selected from 500 nm to 560 nm
- blue is selected from 430 nm to 480 nm.
- each laser is desirably a laser that can be directly modulated at 10 MHz or more, preferably about 100 MHz.
- a semiconductor laser with an oscillation wavelength of 642 nm can be selected for red
- a solid-state laser with an oscillation wavelength of 532 nm by excitation with a semiconductor laser and a semiconductor laser with an oscillation wavelength of 450 nm can be selected for blue. If a green semiconductor laser is available, it can be selected.
- the laser of each wavelength has a light receiving element so that the light output can be monitored from the rear, and each light output is always fed back so as to be controlled to a predetermined value of the image signal.
- Each laser (11 to 13) is fixed to the housing 7, but is fixed with screws so that it can be replaced in the event of a failure.
- the optical axis matching means 2 composed of a plurality of optical elements is mainly composed of a lens (21 to 23) and a beam splitter (24, 25) having a dielectric film on the surface. Is done.
- the light beam of the red laser 11 is made to coincide with the lens 21
- the light beam of the green laser 12 is made of lens 22
- the light beam of the blue laser 13 is made to coincide with the lens 23 in the range of 0.9 mm to 1.5 mm
- Each is made into parallel light.
- the parallel light here is approximately expressed by a Gaussian beam, and the spot diameter is within 1 to 2 times the beam waist diameter at the distance from each laser (11-13) to the screen 6. That means.
- the beam splitter 24 is designed to transmit 99.9% or more of the green light beam and reflect 97% or more of the red light beam.
- the beam splitter 25 is designed to transmit 99.9% or more of red and green light beams and reflect 95% or more of blue light beams.
- each of the lenses (21 to 23) is provided with an actuator so that the vertical tilt and the horizontal angle can be finely adjusted with respect to the optical axis direction and the plane perpendicular to the optical axis.
- the means 3 for scanning a plurality of light beams is configured such that a mirror having a diameter of 1 mm to 3 mm can be modulated in two directions by MEMS, and the red, green, and blue light beams converted into parallel light are mirrored. Reflect with.
- the light beam having image information and having substantially the same optical axis is projected onto the screen 6 by the driving unit 5 to form one pixel, and the observer observes the entire light beam scanned two-dimensionally. It can be recognized as an image.
- the optical axes of the red, green, and blue lasers coincide with each other, and the respective spots are adjusted to substantially the same size, but are included in the optical coincidence means 2 (lenses 21 to 23).
- the light source 1 is movable with respect to the housing 7.
- the detecting means 9 is composed of a pinhole 91 and a light receiving element 92 so as to pass light rays.
- the pinhole 91 has a circular opening, the size thereof is 2 mm, and the light receiving element 92 is disposed around the center reference point 92A as shown in FIG. It consists of four incident light receiving elements 92B. Then, the intensity of the light beam is measured by the four light receiving elements 92B.
- the light receiving element 92 should just be at least 2 or more.
- the four light receiving elements 92B are made of the same material, and generate the same photocurrent and output the same voltage with respect to the light having the same light output.
- red, green, and blue light beams that pass through the pinhole 91 and are circular are received one by one by the four light receiving elements 92B.
- the correction signal transmitting unit 10 generates a correction signal that eliminates the voltage difference.
- the generated actuator is controlled by the actuator provided on the lens (21-23) of the optical matching means 2, and the inclination of the lens (21-23) is controlled so that the center of the spot of the light beam coincides with the center reference point 92A. .
- the variation in the beam diameter of the light beam can be known from the difference in the amount of light received by the entire light receiving element 92.
- the beam diameter of the light beam becomes too large, the light amount of the light beam that has passed through the pinhole 91 decreases, and becomes a value smaller than a predetermined light output. In that case, a signal is sent to the actuators of the lenses (21 to 23) to control the focal position.
- the MEMS modulation speed is set to 30 KHz in the horizontal direction and 60 Hz in the vertical direction, so that a two-dimensional image with a display resolution of XGA can be displayed.
- the spot diameter of the light beam of the red, green, and blue lasers (11 to 13) is always 1.5 mm or less on the screen 6 at a distance of 1 m from this apparatus, and the deviation of the spot center is 0.5 mm.
- the deviation of the spot center is 0.5 mm.
- FIG. 5 is a cross-sectional view of an essential part for explaining the light beam scanning image projection apparatus according to the third embodiment of the present invention.
- the mechanism for displaying an image is almost the same as in the second embodiment.
- a light source 1 that emits a light beam having a plurality of wavelengths includes a red laser 11, a green laser 12, and a blue laser 13.
- a semiconductor laser with an oscillation wavelength of 630 nm can be selected for red
- a semiconductor laser with an oscillation wavelength of 460 nm can be selected for blue.
- Each laser (11 to 13) is fixed to the casing 7, but is fixed with screws so that it can be replaced in the event of a failure.
- the optical axis matching means 2 composed of a plurality of optical elements is mainly composed of lenses (21 to 23) and a beam splitter (24, 25) having a dielectric film on the surface. Is done.
- the light beam of the red laser 11 is matched by the lens 21, the light beam of the green laser 12 by the lens 22, and the light beam of the blue laser by the lens 23. It becomes parallel light.
- the beam splitter 24 is designed to transmit 99.9% or more of the green light beam and reflect 97% or more of the red light beam, and serves as a filter.
- the beam splitter 25 is designed to transmit 99.9% or more of the red and green light beams and reflect 95% or more of the blue light beam, and serves as a filter.
- These beamsplitters (24, 25) are used for initial adjustment before shipment so that the optical axes of the red, green, and blue beams coincide.
- each of the lenses (21 to 23) can be finely adjusted later in the optical axis direction, and the beam splitter (24, 25) has a vertical inclination and a horizontal angle with respect to a plane perpendicular to the optical axis.
- an actuator is provided in order to enable fine adjustment.
- the means 3 for scanning a plurality of light beams is such that a mirror having a diameter of 2 mm can be modulated in two axial directions by MEMS, and the red, green, and blue light beams that have become parallel light are reflected by the mirror.
- the light beam having image information and having substantially the same optical axis is projected onto the screen 6 by the driving unit 5 to form one pixel, and the observer observes the whole of the two-dimensionally scanned light beam. It can be recognized as an image.
- the optical coincidence means 2 includes a lens (21 to 23), a beam.
- the splitter (24, 25) is movable with respect to the housing 7. This is because when one of the lasers of the light source 1 is replaced, the optical axis shifts when the usage environment changes, and so on, so that the optical axis is adjusted to coincide later.
- the detecting means 9 is composed of a pinhole 91 and a light receiving element 92 so as to pass light rays.
- the pinhole 91 has a circular opening, the size thereof is 2 mm, and the light receiving element 92 is disposed around the center reference point 92A as shown in FIG. It consists of four incident light receiving elements 92B.
- the intensity of the light beam is measured by the four light receiving elements 92B.
- the number of light receiving elements 92 may be at least two.
- the four light receiving elements 92B are made of the same material, and generate the same photocurrent and output the same voltage with respect to the light having the same light output.
- the red, green and blue light beams passing through the pinhole 91 and being circular are received by the four light receiving elements 92B one by one.
- the correction signal transmitter 10 generates a correction signal that eliminates the voltage difference.
- the lenses (21 to 23) of the optical coincidence means 2 and the actuators provided on the beam splitters (24, 25) are controlled so that the spot center of the light beam and the center reference point 92A coincide with each other. 23) and the position and inclination of the beam splitter (24, 25) are controlled.
- the light beam scanning image projection apparatus of the present embodiment by setting the MEMS modulation speed to 18 KHz in the horizontal direction and 60 Hz in the vertical direction, a two-dimensional image with a resolution of VGA can be displayed, which is 50 cm away from this apparatus.
- the spot diameter of each light beam of the red, green and blue lasers (11 to 13) is always 1.2 mm or less, and the deviation of the center of the spot is within 0.3 mm I was able to.
- FIG. 6 is a cross-sectional view of an essential part for explaining the light beam scanning image projection apparatus according to the fourth embodiment of the present invention.
- the light source 1 that emits light of different wavelengths is composed of a red laser 11, a green laser 12, and a blue laser 13.
- a solid-state laser excited by a semiconductor laser may be used.
- the solid-state laser is composed of an infrared semiconductor laser for excitation, a non-linear optical crystal capable of generating a second harmonic by optical excitation, and a mirror or diffraction grating forming a resonator.
- Each laser (11 to 13) is fixed to the casing 7.
- the optical axis matching means 2 composed of a plurality of optical elements is mainly composed of a lens (21 to 23), a mirror 26, and a beam splitter (25, 27).
- the light beam of the red laser 11 is approximately matched by the lens 21, the light beam of the green laser 12 by the lens 22, and the light beam of the blue laser is approximately matched by the lens 23 in the range of 0.5 mm to 1.5 mm. It becomes parallel light.
- the mirror 26 has a dielectric film attached so as to reflect 98% or more of light in the visible light region.
- the beam splitter 27 is designed to transmit 99.9% or more of the red light beam and reflect 97% or more of the green light beam, and serves as a filter.
- the beam splitter 25 is designed to transmit 99.9% or more of the red and green beams and reflect 95% or more of the blue light beam, and serves as a filter.
- mirrors 26 and beam splitters (25, 27) are used for initial adjustment before shipment so that the optical axes of the red, green, and blue lasers (11 to 13) coincide.
- each of the lenses (21 to 23) is provided with an actuator so that the vertical tilt and the horizontal angle can be finely adjusted with respect to the optical axis direction and the plane perpendicular to the optical axis.
- the mechanism for displaying an image and the mechanism for making the optical axis of the light beam of each wavelength substantially coincide with the beam diameter as adjustment before use are the same as in the second embodiment.
- the light beam scanning image projection apparatus of the present embodiment by setting the MEMS modulation speed to 18 KHz in the horizontal direction and 60 Hz in the vertical direction, a two-dimensional image with a resolution of VGA can be displayed, which is 50 cm away from this apparatus.
- the spot diameter of each light beam of the red, green and blue lasers (11 to 13) is always 1.2 mm or less, and the deviation of the center of the spot is within 0.2 mm I was able to.
- FIG. 7 shows the timing when the light beam adjusting mechanism of the light beam scanning image projection apparatus is operated not only before use but also during image display.
- the device configuration may be the same as that of the second embodiment shown in FIG.
- the red, green, and blue light beams are intensity-modulated at 10 MHz, and the light intensity is greater than 0 when there is video signal information at the pixel display timing; otherwise, the light intensity is 0. ing.
- the light receiving element 92 of the detecting means 9 is composed of four light receiving elements 92B, each of which has a shape of a quarter of a circle having a radius of about 0.3 to 0.6 mm. If it is larger than this, the light receiving element cannot respond to light emission of the light emitting element for a short time of the order of 10 ns.
- the correction signal transmitter 10 When the spot center of the light beam is deviated from the center reference point 92A, a difference occurs in the output voltages of the four light receiving elements 92B. Therefore, the correction signal transmitter 10 generates a correction signal that eliminates the voltage difference.
- the actuators provided on the lenses (21 to 23) of the optical coincidence means 2 are controlled so that the beam diameters of the light beams of the respective colors are substantially the same, and the spot center of the light beam and the center reference point 92A are The position and inclination of the lenses (21 to 23) are controlled so as to match.
- the MEMS modulation speed is set to 18 KHz in the horizontal direction and 60 Hz in the vertical direction, so that a two-dimensional image with a resolution VGA can be displayed, which is 30 cm away from this apparatus.
- the spot diameter of each of the red, green, and blue lasers (11 to 13) should always be 1.2 mm or less, and the deviation of the spot center should be within 0.2 mm. I was able to.
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Abstract
Description
2 光軸一致手段
3 複数の光線を走査する手段
4 画像信号を光源の駆動部に送る手段
5 駆動部
6 スクリーン
7 筐体
8,24,25,27 ビームスプリッタ
9 検出手段
10 補正信号送信部
11 赤色レーザ
12 緑色レーザ
13 青色レーザ
21,22,23 レンズ、
26 ミラー
91 ピンホール
92,92B 受光素子
92A 基準中心位置
Claims (10)
- それぞれ異なる波長の光ビームを出射する複数の光源と、
前記各光ビームの強度を画像信号に応じて変調する駆動部と、
前記各光ビームの光軸を一致させる光軸一致手段と、
前記各光ビームを走査する走査手段とを備える光ビーム走査型画像投影装置において、
前記光軸一致手段は、複数の光学素子と、
前記光学素子の少なくとも一つの位置および傾きの少なくとも一方を調整する調整部とを有し、
前記各光ビームのスポット中心と、中心基準点とのずれを検出する検出手段と、
前記検出手段での検出結果に基づき、前記調整部を制御し、前記光学一致手段の前記光学素子の少なくとも一つの位置および傾きの少なくとも一方を調整し、前記各光ビームの光軸を一致させる位置調整手段とを有することを特徴とする光ビーム走査型画像投影装置。 - 前記複数の光源は、それぞれ青、緑、赤色の光ビームを出射する半導体レーザ、あるいは、半導体レーザで励起する第2高調波の光ビームを出射する固体レーザを含むことを特徴とする請求項1に記載の光ビーム走査型画像投影装置。
- 前記位置補正手段は、前記検出手段での検出結果に基づき、前記各光ビームの伝播方向を調整することを特徴とする請求項1に記載の光ビーム走査型画像投影装置。
- 前記光軸一致手段は、前記各光源より発生する複数の光ビームを1軸に集光する光学系を有し、
前記光学系は、誘電膜ミラー、誘電膜フィルタ、レンズの中の少なくとも1部品を含み、
前記位置調整手段は、前記調整部を制御し、前記光学系の前記誘電膜ミラー、前記誘電膜フィルタ、および前記レンズの中の少なくとも1部品の位置、傾きを変化させて、前記各光ビームの伝播方向を調整することを特徴とする請求項1に記載の光ビーム走査型画像投影装置。 - 前記検出手段は、ピンホールと、
前記中心基準点の周囲に配置され、前記ピンホールを透過した光が入射される複数の受光素子とを有し、
前記ピンホールには、前記各光源から出射された光ビームの投影面からの反射光が入射され、
前記位置調整手段は、前記複数の受光素子の出力信号に基づき、前記調整部を制御し、前記光学一致手段の前記光学素子の少なくとも一つの位置および傾きの少なくとも一方を調整し、前記各光ビームの光軸を一致させることを特徴とする請求項1に記載の光ビーム走査型画像投影装置。 - 前記検出手段は、ピンホールと、
前記中心基準点の周囲に配置され、前記ピンホールを透過した光が入射される複数の受光素子とを有し、
前記ピンホールには、前記各光源から出射された光ビームの中でビームスプリッタを透過した光ビームが入射され、
前記位置調整手段は、前記複数の受光素子の出力信号に基づき、前記調整部を制御し、前記光学一致手段の前記光学素子の少なくとも一つの位置および傾きの少なくとも一方を調整し、前記各光ビームの光軸を一致させることを特徴とする請求項1に記載の光ビーム走査型画像投影装置。 - 前記位置調整手段は、前記複数の受光素子の出力信号に基づき、前記各光ビームのビーム径を調整することを特徴とする請求項5に記載の光ビーム走査型画像投影装置。
- 前記位置調整手段は、前記複数の受光素子の出力信号に基づき、前記各光ビームのビーム径を調整することを特徴とする請求項6に記載の光ビーム走査型画像投影装置。
- 前記画像信号が入力されていない時間帯に、前記各光源から照射される光ビームの光軸を一致させることを特徴とする請求項5に記載の光ビーム走査型画像投影装置。
- 前記画像信号が入力されていない時間帯に、前記各光源から照射される光ビームの光軸を一致させることを特徴とする請求項6に記載の光ビーム走査型画像投影装置。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010517882A JP5444217B2 (ja) | 2008-06-18 | 2009-06-11 | 光ビーム走査型画像投影装置 |
| US12/999,392 US8569727B2 (en) | 2008-06-18 | 2009-06-11 | Light beam scanning image projection apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2008158752 | 2008-06-18 | ||
| JP2008-158752 | 2008-06-18 |
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| Publication Number | Publication Date |
|---|---|
| WO2009154134A1 true WO2009154134A1 (ja) | 2009-12-23 |
Family
ID=41434049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2009/060692 Ceased WO2009154134A1 (ja) | 2008-06-18 | 2009-06-11 | 光ビーム走査型画像投影装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8569727B2 (ja) |
| JP (1) | JP5444217B2 (ja) |
| WO (1) | WO2009154134A1 (ja) |
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| WO2010098363A1 (ja) * | 2009-02-26 | 2010-09-02 | 株式会社 日立製作所 | 光軸調整装置、光軸調整方法及び投射型表示装置 |
| CN101865383A (zh) * | 2010-06-01 | 2010-10-20 | 葛晓棠 | 一种激光光源模块 |
| WO2010146974A1 (ja) * | 2009-06-19 | 2010-12-23 | 株式会社日立製作所 | 光走査型画像表示装置 |
| JP2011154344A (ja) * | 2009-12-28 | 2011-08-11 | Ricoh Co Ltd | 走査型画像表示装置、携帯電話、携帯型情報処理装置、携帯型撮影装置 |
| JP2011180541A (ja) * | 2010-03-04 | 2011-09-15 | Nippon Seiki Co Ltd | 表示装置 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63309453A (ja) * | 1987-06-10 | 1988-12-16 | Fuji Photo Film Co Ltd | カラ−ビ−ムの露光制御方式 |
| JP2002307743A (ja) * | 2001-04-10 | 2002-10-23 | Noritsu Koki Co Ltd | レーザー露光装置 |
| WO2005083507A1 (ja) * | 2004-02-27 | 2005-09-09 | Matsushita Electric Industrial Co., Ltd. | 映像投射装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5903388A (en) * | 1992-06-11 | 1999-05-11 | Sedlmayr Steven R | High efficiency electromagnetic beam projector and systems and method for implementation thereof |
| JP3519777B2 (ja) * | 1994-04-08 | 2004-04-19 | 株式会社トプコン | 角度自動補償装置 |
| JP3975514B2 (ja) | 1997-08-15 | 2007-09-12 | ソニー株式会社 | レーザディスプレイ装置 |
| US7262765B2 (en) | 1999-08-05 | 2007-08-28 | Microvision, Inc. | Apparatuses and methods for utilizing non-ideal light sources |
| US6424412B1 (en) * | 2000-08-30 | 2002-07-23 | Sony Corporation | Efficient system and method for detecting and correcting laser misalignment of plural laser beams |
| US6939009B2 (en) * | 2001-02-06 | 2005-09-06 | Optics 1, Inc. | Compact work light with high illumination uniformity |
| JP2003029201A (ja) * | 2001-07-11 | 2003-01-29 | Canon Inc | 画像投射装置及び画像補正方法 |
-
2009
- 2009-06-11 WO PCT/JP2009/060692 patent/WO2009154134A1/ja not_active Ceased
- 2009-06-11 JP JP2010517882A patent/JP5444217B2/ja not_active Expired - Fee Related
- 2009-06-11 US US12/999,392 patent/US8569727B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63309453A (ja) * | 1987-06-10 | 1988-12-16 | Fuji Photo Film Co Ltd | カラ−ビ−ムの露光制御方式 |
| JP2002307743A (ja) * | 2001-04-10 | 2002-10-23 | Noritsu Koki Co Ltd | レーザー露光装置 |
| WO2005083507A1 (ja) * | 2004-02-27 | 2005-09-09 | Matsushita Electric Industrial Co., Ltd. | 映像投射装置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US8569727B2 (en) | 2013-10-29 |
| JPWO2009154134A1 (ja) | 2011-12-01 |
| JP5444217B2 (ja) | 2014-03-19 |
| US20110096383A1 (en) | 2011-04-28 |
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