WO2014073043A1 - 投写型映像表示装置 - Google Patents
投写型映像表示装置 Download PDFInfo
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- WO2014073043A1 WO2014073043A1 PCT/JP2012/078778 JP2012078778W WO2014073043A1 WO 2014073043 A1 WO2014073043 A1 WO 2014073043A1 JP 2012078778 W JP2012078778 W JP 2012078778W WO 2014073043 A1 WO2014073043 A1 WO 2014073043A1
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- light
- video display
- lens
- multiple reflection
- aspect ratio
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- 238000005286 illumination Methods 0.000 claims abstract description 10
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 239000003086 colorant Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 101100277916 Caenorhabditis elegans dmd-10 gene Proteins 0.000 description 24
- 238000010586 diagram Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
- H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
- H04N5/7458—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of deformable mirrors, e.g. digital micromirror device [DMD]
-
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
-
- 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
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- 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
- G03B21/206—Control of light source other than position or intensity
-
- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/002—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
-
- 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]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
- H04N9/3114—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources by using a sequential colour filter producing one colour at a time
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0235—Field-sequential colour display
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G2340/0414—Vertical resolution change
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G2340/0421—Horizontal resolution change
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0442—Handling or displaying different aspect ratios, or changing the aspect ratio
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/346—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on modulation of the reflection angle, e.g. micromirrors
Definitions
- the present invention relates to a projection type video display.
- DMD Digital Micromirror Device: Texas Instruments, Inc., USA
- Patent Document 1 in order to avoid color mixing, a portion for blocking light is provided on the color wheel, but there is a problem that the time for blocking light is long and the loss of light is large.
- an object of the present invention is to provide a projection type image display apparatus in which light loss is reduced while suppressing color mixing.
- the projection type video display apparatus includes a light source, an illumination optical system, a video display element that modulates light from the light source according to an external input signal, and a projection optical system that projects light modulated by the video display element.
- the illumination optical system includes: a multi-reflection element that makes the distribution of light from the light source uniform, a color wheel that separates the color of the light from the multi-reflection element, and a lens that magnifies the light from the color wheel
- a multi-reflection element that makes the distribution of light from the light source uniform
- a color wheel that separates the color of the light from the multi-reflection element
- a lens that magnifies the light from the color wheel
- FIG. 1A and FIG. 2A the longitudinal direction of the multiple reflection element (rod lens) is Z axis, and in the plane orthogonal to the Z axis, an axis parallel to the paper is X axis and from the back of the paper to the front Let the axis be the Y axis.
- FIG. 1B and FIG. 2B in the plane orthogonal to the Z-axis, an axis parallel to the paper surface is taken as a Y-axis, and an axis from the front to the back of the paper is taken as an X-axis.
- FIG. 2 is a block diagram of the main part of a projection type video display assumed to be a problem
- FIG. 2 (A) is a top view of the projection type video display viewed from the Y-axis direction
- FIG. 2 (B) is a projection type It is the side view which looked at a video display apparatus from the X-axis direction.
- the multiple reflection element 13 is a glass square pole or a hollow element in which four reflection mirrors are bonded.
- the color wheel 4 is disposed in the vicinity of the exit surface of the multiple reflection element 13.
- six types of color filters that transmit only R (red), G (green), B (blue), C (cyan), Y (yellow), and W (white) light in the circumferential direction Is a disc-shaped color filter that can be controlled to rotate.
- the color can be reproduced with only three types of color filters of R (red), G (green) and B (blue), it is general to use six color filters in order to improve the brightness.
- the rotation of the color wheel 4 causes the white light to be separated into six colors (R, G, B, C, Y, W) in time.
- the light emitted from the multiple reflection element 13 is irradiated onto the DMD 10 via the relay lens 5, the relay lens 12, the relay lens 8, and the TIR prism 9.
- the relay lens 5 prevents the divergence of light by condensing the light emitted from the multiple reflection element 13 on the relay lens 12.
- the relay lens 12 spreads the light distribution, which has become uniform on the exit surface of the multiple reflection element 13, onto the DMD 10 surface.
- the relay lens 8 substantially collimates the light from the relay lens 12.
- the TIR prism 9 totally reflects the incident light and guides it to the DMD 10.
- the DMD 10 is a reflection-type light modulation element composed of a two-dimensional mirror array capable of controlling the tilt of each micro mirror, and the tilt takes two types of states, an on state and an off state.
- the on-state micro mirror reflects the illumination light toward the projection lens 11 (hereinafter referred to as on-light), and the off-state micro mirror reflects the illumination light to the outside of the projection lens 11 Below, off light). That is, only the on light is enlarged and projected onto the screen or the like through the projection lens 11.
- One of the micro mirrors corresponds to the smallest component (pixel) of the projected image, and the pixels corresponding to the on-state micro mirrors are projected white, and the pixels corresponding to the off-state micro mirrors are projected black.
- Gradation can be provided by changing the on-state time. That is, video display is performed by controlling the time of the on state of each micro mirror.
- the DMD 10 is synchronized with the color wheel 4 by a control device (not shown), and displays an image based on an image signal for each color light of the color wheel 4, and also makes the light incident from the TIR prism 9 a projection lens 11. Reflect in the direction.
- the light beam after being reflected by the DMD 10 is an angle that does not satisfy the total reflection angle of the TIR prism 9, so it is transmitted through the TIR prism 9 and is incident on the projection lens 11.
- a system from the light source 1 to the light passing through the TIR prism 9 from the reflector 2 is called an illumination optical system.
- FIG. 2C is a view showing the light distribution 31 on the exit surface of the multiple reflection element 13 and the light distribution 100 on the DMD 10 surface.
- the magnification with which the light distribution 31 is expanded to the light distribution 100 depends on the relay lens 12. Assuming that the distance between the relay lens 5 and the relay lens 12 is A, and the distance between the relay lens 12 and the relay lens 8 is B, the magnification is B / A.
- the shape of the exit surface of the multi-reflecting element 13 is generally similar to the effective range on the surface of the DMD 10.
- the relay lens 12 a lens having the same curvature in the X-axis direction and the Y-axis direction is used. . Therefore, the magnification at which the light distribution 31 is expanded to the light distribution 100 is B / A in both the X-axis direction and the Y-axis direction.
- FIG. 2D shows the relationship between the color wheel 4 and the spoke time. Since the color wheel 4 is disposed in the vicinity of the multiple reflection element 13, the light distribution 31 on the exit surface of the multiple reflection element 13 is projected onto the color wheel 4 as it is.
- the boundaries between the color filters of the color wheel 4 (in FIG. 2D, as an example, between RG) are used to block light (the DMD 10 is in the off state) in order to avoid color mixing. This blocking time is called spoke time. The emitted light is lost at the spoke time.
- the color wheel 4 is arranged such that the boundary of each color filter is parallel to the longitudinal direction of the light distribution in order to minimize the spoke time.
- the spoke time since the light distribution in the Y-axis direction has a constant width, the spoke time must be increased to a certain extent and light is lost.
- it may be considered to reduce the exit surface of the multiple reflection element 13 while maintaining the shape ratio, but the light collection density becomes high and the glass or vapor deposition film of the multiple reflection element 13 is degraded. Because of the possibility, it requires a certain size or more of the emitting surface.
- FIG. 1 is a block diagram of the principal part of the projection type video display apparatus in the embodiment, and FIGS. 1 (A) to 1 (D) respectively correspond to FIGS. 2 (A) to 2 (D).
- the main differences between FIG. 1 and FIG. 2 are as follows.
- (1) The aspect ratio of the multiple reflection element 3 is larger than the aspect ratio of the DMD 10. That is, the length of the exit surface of the multiple reflection element 3 in the X-axis direction is C ′, the length in the Y-axis direction is D ′, the length in the X-axis direction of the DMD 10 is E, and Then, C '/ D'> E / F is satisfied.
- the area C ′ ⁇ D ′ of the exit surface of the multiple reflection element 3 is equal to or more than the area C ⁇ D of the exit surface of the multiple reflection element 13 in FIG.
- the density is equal to or less than that of FIG. 2, and the glass or vapor-deposited film of the multiple reflection element 3 is not deteriorated.
- the light beam reflected a plurality of times in the multiple reflection element 3 is emitted at an exit surface of the multiple reflection element 3 at an aspect ratio larger than the aspect ratio of the DMD 10.
- the cylindrical lens 6 and the cylindrical lens 7 are disposed between the relay lens 5 and the relay lens 8.
- the relay lens 5 focuses the light on the cylindrical lens 6 in order to prevent divergence of the light emitted from the multiple reflection element 3.
- the cylindrical lens 6 and the cylindrical lens 7 expand the light distribution, which has become uniform on the exit surface of the multi-reflecting element 3, in the X-axis direction and the Y-axis direction on the DMD 10 surface, respectively, to obtain a panel aspect ratio.
- the cylindrical lens here is a lens having a curvature only in one axial direction.
- the cylindrical lens 6 has a curvature only in the Y-axis direction
- the cylindrical lens 7 has a curvature only in the X-axis direction. Accordingly, light diverging in the Y-axis direction from the exit surface of the multi-reflecting element 3 is enlarged and irradiated onto the DMD 10 surface by the cylindrical lens 6, and light diverged in the X-axis direction is enlarged and irradiated onto the DMD 10 surface by the cylindrical lens 7 Be done.
- the magnification at which the light distribution 30 of the exit surface of the multiple reflection element 3 in FIG. 1C is expanded to the light distribution 100 on the DMD 10 is a relay
- the distance between the lens 5 and the cylindrical lens 7 is Ax
- the distance between the cylindrical lens 7 and the relay lens 8 is Bx
- the distance between the relay lens 5 and the cylindrical lens 6 is Ay
- the distance between the cylindrical lens 6 and the relay lens 8 Assuming that the distance of is By, the magnification in the X axis direction is Bx / Ax
- the magnification in the Y axis direction is By / Ay.
- the cylindrical lens 6 is closer to the multi-reflecting element 3 than the cylindrical lens 7, Ax> Ay, Bx ⁇ By, and By / Ay is larger than Bx / Ax.
- the aspect ratio of the exit surface of the multi-reflecting element 3 is longer in the X-axis direction and shorter in the Y-axis direction than the aspect ratio of the DMD 10. Therefore, the light distribution 100 on the DMD 10 is obtained by expanding the light of the long exit surface in the X-axis direction with a small magnification Bx / Ax and enlarging the light of the short emission surface in the Y-axis direction with a high magnification By / Ay. , And the shape substantially similar to that of the DMD 10.
- the luminous flux quantity can be improved by about 100 lm in a class of 3000 lm or more, which is a volume zone, and the luminous flux quantity can be increased by one rank. Therefore, the aspect ratio of the exit surface of the multiple reflection element for reducing the light quantity loss due to the spoke time by 3% will be described with reference to FIG.
- the off-angle needs to be 10 ° to 8.2 ° or less in FIG.
- C ′ / D ′ (E / F) ⁇ [tan ( ⁇ / 2) ⁇ tan ( ⁇ ′ / 2)] ⁇ [tan ( ⁇ / 2) ⁇ tan ( ⁇ ′ / 2)] (6)
- the resolution of the DMD is, for example, XGA (1024 ⁇ 768), WXGA (1280 ⁇ 800), 1080P (1920 ⁇ 1080), etc., and the aspect ratio is 4/3, 16/10, 16/9 respectively. is there.
- the aspect ratio of DMD is mainly classified into these three types. Therefore, when the aspect ratio C ′ / D ′ of the exit surface of the multi-reflecting element 3 when the aspect ratio of the DMD is 4/3, 16/10, 16/9, 1.99, 2.38, respectively. , 2.65. Therefore, when the aspect ratio of the DMD is 4/3, 16/10, 16/9, C '/ D' may be 1.99 or more, 2.38 or more, 2.65 or more, respectively.
- two cylindrical lenses are used, but one cylindrical lens may be provided at right angles in incident and output.
- one cylindrical lens may be provided at right angles in incident and output.
- a cylindrical lens in which one axis is a plane in one plane is used, it is possible to use toroidal lenses having curvatures in the X-axis direction and the Y-axis direction in one plane and different in curvature. Good.
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Abstract
Description
(1)多重反射素子3のアスペクト比がDMD10のアスペクト比よりも大きい点である。即ち、多重反射素子3の射出面のX軸方向の長さをC’、Y軸方向の長さをD’、DMD10のX軸方向の長さをE、Y軸方向の長さをFとすると、C’/D’>E/Fを満たす。又、多重反射素子3の射出面の面積C’×D’を、図2における多重反射素子13の射出面の面積C×Dと同等以上にすれば、多重反射素子3の射出面での光密度は、図2の同等以下となり、多重反射素子3の硝子又は蒸着膜が劣化することはない。こうして、多重反射素子3内で複数回反射した光線は、多重反射素子3の射出面でDMD10のアスペクト比より大きなアスペクト比で出射する。
(2)リレーレンズ5とリレーレンズ8の間に、シリンドリカルレンズ6及びシリンドリカルレンズ7が配置されている点である。リレーレンズ5は、多重反射素子3から射出した光の発散を防ぐため、当該光をシリンドリカルレンズ6に集光する。シリンドリカルレンズ6とシリンドリカルレンズ7は、多重反射素子3の射出面で均一になった光分布をX軸方向及びY軸方向にそれぞれDMD10面上に拡大し、パネルアスペクト比にする。
d = (a×θ)÷360 ・・・ (数1)
D = 2L×tan(θ/2) … (数2)
D’= 2L×tan(θ’/2) … (数3)
C×D = C’×D’ … (数4)
C/D = E/F … (数5)
C’/D’= (E/F)×[tan(θ/2)÷tan(θ’/2)] ×[tan(θ/2)÷tan(θ’/2)] … (数6)
Claims (6)
- 光源と、
照明光学系と、
外部からの入力信号に応じて、前記光源からの光を変調する映像表示素子と、
前記映像表示素子が変調した光を投写する投写光学系と、を備え、前記照明光学系は、
前記光源からの光の分布を均一にする多重反射素子と、
前記多重反射素子からの光の色を分解するカラーホイールと、
前記カラーホイールからの光を拡大するレンズと、を備え、
前記光の進行方向に垂直な面上の直交する2軸を、それぞれ、X軸、Y軸と定義すると、
前記レンズのX軸方向の曲率半径とY軸方向の曲率半径は異なる、投写型映像表示装置。 - 前記多重反射素子の射出面のアスペクト比は、前記映像表示素子のアスペクト比が4/3の場合、1.99以上である、請求項1記載の投写型映像表示装置。
- 前記多重反射素子の射出面のアスペクト比は、前記映像表示素子のアスペクト比が16/10の場合、2.38以上である、請求項1記載の投写型映像表示装置。
- 前記多重反射素子の射出面のアスペクト比は、前記映像表示素子のアスペクト比が16/9の場合、2.65以上である、請求項1記載の投写型映像表示装置。
- 前記レンズはシリンドリカルレンズである、請求項1乃至4何れか一に記載の投写型映像表示装置。
- 前記レンズはトロイダルレンズである、請求項1乃至4何れか一に記載の投写型映像表示装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014545476A JP6081481B2 (ja) | 2012-11-07 | 2012-11-07 | 投写型映像表示装置 |
CN201280076635.9A CN104756005B (zh) | 2012-11-07 | 2012-11-07 | 投影型影像显示装置 |
US14/438,013 US20150281631A1 (en) | 2012-11-07 | 2012-11-07 | Projection-type video display apparatus |
PCT/JP2012/078778 WO2014073043A1 (ja) | 2012-11-07 | 2012-11-07 | 投写型映像表示装置 |
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PCT/JP2012/078778 WO2014073043A1 (ja) | 2012-11-07 | 2012-11-07 | 投写型映像表示装置 |
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PCT/JP2012/078778 WO2014073043A1 (ja) | 2012-11-07 | 2012-11-07 | 投写型映像表示装置 |
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US (1) | US20150281631A1 (ja) |
JP (1) | JP6081481B2 (ja) |
CN (1) | CN104756005B (ja) |
WO (1) | WO2014073043A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107664906A (zh) * | 2016-07-28 | 2018-02-06 | 松下知识产权经营株式会社 | 荧光体基板、荧光体轮、光源装置、投射型影像显示装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104900209A (zh) * | 2015-06-29 | 2015-09-09 | 深圳市华星光电技术有限公司 | 基于子像素信号亮暗切换时过驱动目标值的计算方法 |
CN115706785A (zh) * | 2021-08-04 | 2023-02-17 | Oppo广东移动通信有限公司 | 投影方法、装置与系统及非易失性计算机可读存储介质 |
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JP2000284361A (ja) * | 1999-01-29 | 2000-10-13 | Nec Viewtechnology Ltd | 映像投写装置 |
US20050001994A1 (en) * | 2003-07-02 | 2005-01-06 | Pate Michael A. | Varying light beam for a display system |
WO2008041363A1 (fr) * | 2006-10-03 | 2008-04-10 | Olympus Corporation | Projecteur |
JP2011154930A (ja) * | 2010-01-28 | 2011-08-11 | Seiko Epson Corp | 照明装置及びプロジェクター |
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US6419365B1 (en) * | 2000-04-21 | 2002-07-16 | Infocus Corporation | Asymmetrical tunnel for spatially integrating light |
US6461001B2 (en) * | 2000-04-25 | 2002-10-08 | Mitsubishi Denki Kabushiki Kaisha | Illumination apparatus and projection type display apparatus |
JP4094805B2 (ja) * | 2000-10-19 | 2008-06-04 | 松下電器産業株式会社 | 画像表示装置及び投写型画像表示装置 |
KR100451733B1 (ko) * | 2000-12-28 | 2004-10-08 | 엘지전자 주식회사 | 화상 투사 장치 |
JP3589225B2 (ja) * | 2002-02-08 | 2004-11-17 | セイコーエプソン株式会社 | プロジェクタ |
JP2004220015A (ja) * | 2002-12-26 | 2004-08-05 | Sanyo Electric Co Ltd | 照明装置及び投写型映像表示装置 |
JP2004335992A (ja) * | 2003-04-18 | 2004-11-25 | Victor Co Of Japan Ltd | 光源装置及びこの光源装置を適用した投射型表示装置 |
JP4104516B2 (ja) * | 2003-09-26 | 2008-06-18 | 三洋電機株式会社 | 投写型映像表示装置 |
JP4102807B2 (ja) * | 2005-01-31 | 2008-06-18 | Necディスプレイソリューションズ株式会社 | 表示パネルの照明光学系、およびその照明光学系を有するプロジェクタ |
CN101346658B (zh) * | 2005-12-20 | 2011-11-16 | 皇家飞利浦电子股份有限公司 | 基于激光的投影机内的混色柱形积分器 |
JP2007316240A (ja) * | 2006-05-24 | 2007-12-06 | Olympus Corp | アスペクト比変換機能を有する画像投射装置 |
JP4420087B2 (ja) * | 2007-08-24 | 2010-02-24 | セイコーエプソン株式会社 | 照明装置及びプロジェクタ |
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2012
- 2012-11-07 JP JP2014545476A patent/JP6081481B2/ja active Active
- 2012-11-07 CN CN201280076635.9A patent/CN104756005B/zh active Active
- 2012-11-07 US US14/438,013 patent/US20150281631A1/en not_active Abandoned
- 2012-11-07 WO PCT/JP2012/078778 patent/WO2014073043A1/ja active Application Filing
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JP2000284361A (ja) * | 1999-01-29 | 2000-10-13 | Nec Viewtechnology Ltd | 映像投写装置 |
US20050001994A1 (en) * | 2003-07-02 | 2005-01-06 | Pate Michael A. | Varying light beam for a display system |
WO2008041363A1 (fr) * | 2006-10-03 | 2008-04-10 | Olympus Corporation | Projecteur |
JP2011154930A (ja) * | 2010-01-28 | 2011-08-11 | Seiko Epson Corp | 照明装置及びプロジェクター |
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CN107664906A (zh) * | 2016-07-28 | 2018-02-06 | 松下知识产权经营株式会社 | 荧光体基板、荧光体轮、光源装置、投射型影像显示装置 |
CN107664906B (zh) * | 2016-07-28 | 2021-11-19 | 松下知识产权经营株式会社 | 荧光体基板、荧光体轮、光源装置、投射型影像显示装置 |
Also Published As
Publication number | Publication date |
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CN104756005A (zh) | 2015-07-01 |
JPWO2014073043A1 (ja) | 2016-09-08 |
JP6081481B2 (ja) | 2017-02-15 |
CN104756005B (zh) | 2016-10-19 |
US20150281631A1 (en) | 2015-10-01 |
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