JPH1010468A - Stereoscopic picture display system - Google Patents
Stereoscopic picture display systemInfo
- Publication number
- JPH1010468A JPH1010468A JP8167114A JP16711496A JPH1010468A JP H1010468 A JPH1010468 A JP H1010468A JP 8167114 A JP8167114 A JP 8167114A JP 16711496 A JP16711496 A JP 16711496A JP H1010468 A JPH1010468 A JP H1010468A
- Authority
- JP
- Japan
- Prior art keywords
- deflection angle
- frequency
- stereoscopic image
- display device
- transducer
- 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.)
- Granted
Links
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は立体画像を表示する
システムに係り、特に一つの表示装置を用い、画像を空
間上で走査することにより立体動画像を表示するシステ
ムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for displaying a stereoscopic image, and more particularly to a system for displaying a stereoscopic moving image by scanning an image in space using one display device.
【0002】[0002]
【従来の技術】従来、一つの表示装置を用い、画像を空
間的に走査して立体画像を再生することが知られてい
る。図2は平面表示装置を前後に動かし、人間の目の残
像を利用して立体画像を再生する例を示す図である。平
面表示装置1は駆動装置2により再生空間3の範囲内で
所定速度で前後に動かされる。平面表示装置1が、例え
ば観察者に近い前端位置で赤色の絵柄を、最も遠い後端
位置で青色の絵柄を表示する場合、表示装置を前後に動
かす速度を速くすると、観察者には、残像によって赤色
の絵柄が前端位置に、青色の絵柄が後端位置にあるよう
に見え、立体画像として再生されることになる。2. Description of the Related Art Conventionally, it has been known that a single display device is used to spatially scan an image to reproduce a stereoscopic image. FIG. 2 is a diagram showing an example in which a three-dimensional image is reproduced by moving the flat panel display back and forth and using an afterimage of a human eye. The flat display device 1 is moved back and forth at a predetermined speed within a reproduction space 3 by a driving device 2. When the flat display device 1 displays, for example, a red pattern at a front end position close to the observer and a blue pattern at a farthest rear end position, increasing the speed at which the display device is moved back and forth will cause the observer to have an afterimage. As a result, it appears that the red picture is at the front end position and the blue picture is at the rear end position, and is reproduced as a stereoscopic image.
【0003】しかし図2の装置では平面表示装置を動か
すために大がかりとなってしまう。そこで、図3に示す
ような方法も知られている。図3はバリフォーカルミラ
ー(焦点距離可変のミラー)を用いた立体画像を再生す
る例を示す図である。バリフォーカルミラー5は、電気
的あるいは機械的な力でミラーの曲率が所定の速度で周
期的に変えられるようになっている。観察者がCRT6
の画面をバリフォーカルミラー5の反射光で見ると、バ
リフォーカルミラー5の曲率の変化に応じてCRTの画
面が遠ざかったり、近ずいたりする。したがって、バリ
フォーカルミラー5の曲率の変化に同期させてCRTの
画面に赤色の絵柄、青色の絵柄等を表示させると、図2
の場合と同様にそれらが立体的に見える。However, the apparatus shown in FIG. 2 requires a large scale to move the flat panel display. Therefore, a method as shown in FIG. 3 is also known. FIG. 3 is a diagram showing an example of reproducing a stereoscopic image using a varifocal mirror (a mirror having a variable focal length). The varifocal mirror 5 is configured such that the curvature of the mirror can be periodically changed at a predetermined speed by an electric or mechanical force. Observer is CRT6
When the screen is viewed by the reflected light of the varifocal mirror 5, the screen of the CRT moves away or approaches according to the change in the curvature of the varifocal mirror 5. Therefore, when a red pattern, a blue pattern, and the like are displayed on the screen of the CRT in synchronization with the change in the curvature of the varifocal mirror 5, FIG.
They look three-dimensional as in the case of.
【0004】また、図4に示すように、片眼にブレーズ
状回折格子を設けたものも知られてている。図4(a)
において、眼鏡7は、す通しの眼鏡であり、眼鏡8はブ
レーズ状回折格子が形成された眼鏡である。眼鏡8は、
図4(b)に示すように、R,G,B光に対して回折角
が異なっている。図5に示すように、このような眼鏡で
赤、緑、青の各モノカラーの絵柄R,G,Bが印刷され
た印刷物9を見ると、眼鏡8においては、赤の絵柄Rか
らの光LR は、回折により破線LR ′のように観察され
るため、両眼視差により赤の絵柄Rは位置10に破線で
示すように観察される。また、青の絵柄Bからの光LB
は、回折により破線LB ′のように観察されるため、両
眼視差により青の絵柄Bは位置11に破線で示すように
観察される。また、図示は省略するが緑の絵柄は赤と緑
の中間的位置に観察される。このように、ブレーズ状回
折格子の波長分散特性により、色のついた絵柄に対する
両眼視差が異なり、赤は遠い位置、青は近い位置、緑は
中間の位置にそれぞれ観察され、立体像が再生される。[0004] Further, as shown in FIG. 4, there is also known one provided with a blazed diffraction grating on one eye. FIG. 4 (a)
, The spectacles 7 are through spectacles, and the spectacles 8 are spectacles on which a blazed diffraction grating is formed. Glasses 8
As shown in FIG. 4B, the diffraction angles are different for the R, G, and B lights. As shown in FIG. 5, when viewing the printed matter 9 on which the monochromatic patterns R, G, and B of red, green, and blue are printed with such glasses, in the glasses 8, the light from the red pattern R Since L R is observed as a broken line L R ′ by diffraction, the red picture R is observed as a broken line at the position 10 due to binocular parallax. Also, the light L B from the blue pattern B
Is observed as a broken line L B ′ by diffraction, so that the blue pattern B is observed at the position 11 as shown by the broken line due to the binocular parallax. Although not shown, a green pattern is observed at an intermediate position between red and green. As described above, the binocular parallax for a colored pattern differs due to the wavelength dispersion characteristics of the blazed diffraction grating. Red is observed at a far position, blue is at a near position, and green is at an intermediate position, and a stereoscopic image is reproduced. Is done.
【0005】[0005]
【発明が解決しようとする課題】しかしながら、図2、
図3に示すものは機械的な走査、駆動が必要であり、装
置の大型化、複雑化を招き、また振動が発生するととも
に、可動部品を用いるため比較的寿命が短いという問題
がある。また、図4、図5に示すものは色によって奥行
きが異なるという疑似的な立体視でしかない。However, FIG.
The one shown in FIG. 3 requires mechanical scanning and driving, which leads to an increase in the size and complexity of the device, a problem in that vibrations are generated, and the life is relatively short due to the use of movable parts. Further, what is shown in FIGS. 4 and 5 is only a pseudo stereoscopic view in which the depth differs depending on the color.
【0006】本発明は上記課題を解決するためのもの
で、装置の小型化、単純化、長寿命化を図るとともに、
完全な立体視が可能な立体画像表示システムを提供する
ことを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and aims at miniaturization, simplification and long life of the device.
It is an object of the present invention to provide a stereoscopic image display system capable of perfect stereoscopic viewing.
【0007】[0007]
【課題を解決するための手段】本発明は、表示装置と、
表示装置からの光束を偏向する手段を有する光学系と、
表示装置と偏向手段を同期させて制御する制御手段を備
え、偏向手段による光束の偏向角を時間的に変化させ、
観察される虚像を空間的に前後に移動させるようにした
ことを特徴とする。The present invention comprises a display device,
An optical system having means for deflecting a light beam from the display device,
A control unit that controls the display device and the deflection unit in synchronization with each other, and changes a deflection angle of the light beam by the deflection unit with time;
The virtual image to be observed is spatially moved back and forth.
【0008】[0008]
【発明の実施の形態】以下、本発明の実施の形態につい
て説明する。図1は本発明の立体画像表示システムの例
を説明する図である。本発明のシステムは、制御装置3
0で眼鏡20とCRT31を制御し、偏光角と画像を同
期させて変化させることにより、完全な立体視を可能に
したものである。図1(a)において、眼鏡20は2つ
のプリズム21と、2つの音響光学素子22、音響光学
素子を駆動するための2つのトランスデューサ23から
なっている。音響光学素子22はトランスデューサ23
から加えられる音波(あるいは超音波)の周波数を変え
ると音響光学媒体内に生じた位相回折格子間隔が変化
し、回折光の偏向走査が可能になるものである。Embodiments of the present invention will be described below. FIG. 1 is a diagram illustrating an example of a stereoscopic image display system according to the present invention. The system of the present invention includes the control device 3
By controlling the spectacles 20 and the CRT 31 with 0, the polarization angle and the image are changed in synchronization with each other, thereby enabling complete stereoscopic vision. In FIG. 1A, the glasses 20 include two prisms 21, two acousto-optic elements 22, and two transducers 23 for driving the acousto-optic elements. The acousto-optical element 22 is a transducer 23
When the frequency of the sound wave (or ultrasonic wave) applied from the optical disk is changed, the interval between the phase diffraction gratings generated in the acousto-optic medium changes, and the deflection scanning of the diffracted light becomes possible.
【0009】制御装置30はトランスデューサ23の駆
動周波数を制御するとともに、これと同期させてCRT
31の表示画像を変化させている。The control device 30 controls the driving frequency of the transducer 23 and synchronizes with the driving frequency of the
The display image 31 is changed.
【0010】制御装置30によりトランスデューサ23
の駆動周波数を高くして音波の周波数を高くすると、位
相回折格子間隔(ピッチ)が細かくなり、回折角(偏向
角)が大きくなる。偏向角が大きくなると、図1(a)
の例では眼球32、33に対する光束が内側へ寄り、輻
輳により像が遠方に見える。一方、音波の周波数を低く
すると、ピッチが粗くなり、偏向角が小さくなって、眼
球32、33に対する光束が外側へ寄り、逆に近くに見
える。なお、プリズム21はニュートラルな結像位置の
調整に用い、同時に0次光が眼球に入らないように設定
する。また、回折格子は波長により回折角が異なるの
で、表示画像は単色が望ましく、そのためには単色を表
示するか、もしくはフィルタを入れて単色光のみ眼鏡に
導かれるようにすることが望ましい。The control device 30 controls the transducer 23
When the frequency of the sound wave is increased by increasing the driving frequency of the laser beam, the interval (pitch) of the phase diffraction grating is reduced, and the diffraction angle (deflection angle) is increased. When the deflection angle becomes large, FIG.
In the example of (1), the luminous flux for the eyeballs 32 and 33 moves inward, and the image is seen far away due to convergence. On the other hand, when the frequency of the sound wave is reduced, the pitch becomes coarse, the deflection angle becomes small, and the luminous flux to the eyeballs 32 and 33 looks outward and appears close. The prism 21 is used to adjust a neutral image forming position, and at the same time, is set so that zero-order light does not enter the eyeball. Since the diffraction grating has a different diffraction angle depending on the wavelength, the display image is desirably a single color. For this purpose, it is desirable to display a single color, or to insert a filter so that only monochromatic light is guided to the glasses.
【0011】この例において、CRT31は対角14イ
ンチを用い、表示画像は赤色の単色とした。立体空間と
して奥行き10cmを想定し、コンピュータ・グラフィ
ックス(CG)の技術により対角14インチ×10cm
の空間での単色の動画データを作製した。In this example, the CRT 31 has a diagonal of 14 inches and the display image is a single red color. Assuming a depth of 10 cm as a three-dimensional space, 14 inches diagonal x 10 cm by computer graphics (CG) technology
A single color moving image data in the space was prepared.
【0012】制御装置30によりこの立体空間を奥行き
方向に走査した断面画像を次々とCRT31の画面に表
示するのに同期させて眼鏡20の音響光学素子22に奥
行きに対応する偏向角となるような回折格子のピッチに
対応する周波数を与えた。フレームが変わるごとに以上
の走査を繰り返すことにより、立体動画を観察すること
ができた。The control device 30 synchronizes the sectional images scanned in the depth direction of the three-dimensional space one after another on the screen of the CRT 31 so that the acousto-optic device 22 of the glasses 20 has a deflection angle corresponding to the depth. The frequency corresponding to the pitch of the diffraction grating was given. By repeating the above scanning every time the frame changes, a stereoscopic moving image could be observed.
【0013】なお、図1(b)に示すように、偏向角の
変化に同期させて赤→緑→青→赤……のように循環的に
画像表示すると、各色の画像が遠近感をもって見えるよ
うにすることができる。As shown in FIG. 1B, when images are displayed cyclically in the order of red → green → blue → red... In synchronization with the change of the deflection angle, the images of the respective colors appear with a perspective. You can do so.
【0014】また、上記説明では偏向器として音響光学
効果素子を用いたが、本発明はこれに限定されるもので
はなく、電界により屈折率が変化する電気光学効果素子
を用いた光偏向器を用いることも可能である。In the above description, an acousto-optic effect element is used as a deflector. However, the present invention is not limited to this, and an optical deflector using an electro-optic effect element whose refractive index changes with an electric field is used. It is also possible to use.
【0015】[0015]
【発明の効果】以上のように本発明によれば、機械的な
駆動、走査が不要となるため、装置を小型化、単純化す
ることができると同時に振動の発生が抑えられ、超寿命
化を図ることができる。また、偏向角と画像を同期させ
て変化させることにより、完全な立体視が可能となる。As described above, according to the present invention, mechanical driving and scanning are not required, so that the apparatus can be miniaturized and simplified, and at the same time, the generation of vibration can be suppressed and the life can be extended. Can be achieved. Further, by synchronizing and changing the deflection angle and the image, perfect stereoscopic vision becomes possible.
【図1】 本発明の立体画像表示システムの例を説明す
る図である。FIG. 1 is a diagram illustrating an example of a stereoscopic image display system according to the present invention.
【図2】 平面表示装置を前後に動かし、人間の目の残
像を利用して立体画像を再生する例を示す図である。FIG. 2 is a diagram illustrating an example in which a flat display device is moved back and forth, and a stereoscopic image is reproduced using an afterimage of a human eye.
【図3】 バリフォーカルミラーを用いて立体画像を再
生する例を示す図である。FIG. 3 is a diagram illustrating an example of reproducing a stereoscopic image using a varifocal mirror.
【図4】 片眼にブレーズ状回折格子を設けた立体視装
置の例を示す図である。FIG. 4 is a diagram illustrating an example of a stereoscopic device provided with a blazed diffraction grating in one eye.
【図5】 ブレーズ状回折格子による立体視の説明図で
ある。FIG. 5 is an explanatory diagram of a stereoscopic view using a blazed diffraction grating.
1…平面表示装置、2…駆動装置、3…再生空間、5…
バリフォーカルミラー、6…CRT、7…す通しの眼
鏡、8…ブレーズ状回折格子を形成した眼鏡、9…印刷
物、20…眼鏡、21…プリズム、22…音響光学素
子、23…トランスデューサ、30…制御装置、31…
CRT、32…左眼、33…右眼。DESCRIPTION OF SYMBOLS 1 ... Flat display device, 2 ... Drive device, 3 ... Reproduction space, 5 ...
Vari-focal mirror, 6 CRT, 7 through-glasses, 8 glasses with blazed diffraction grating, 9 printed matter, 20 glasses, 21 prism, 22 acousto-optic element, 23 transducer, 30 Control device, 31 ...
CRT, 32 ... left eye, 33 ... right eye.
Claims (6)
向する偏向手段を有する光学系と、表示装置及び偏向手
段を同期させて制御する制御手段とを備え、前記制御手
段により、偏向手段による光束の偏向角を時間的に変化
させて観察される虚像を空間的に前後に移動させるよう
にしたことを特徴とする立体画像表示システム。1. A display device, comprising: an optical system having a deflecting means for deflecting a light beam from the display device; and a control means for controlling the display device and the deflecting means in synchronization with each other. A stereoscopic image display system characterized in that a virtual image to be observed is moved back and forth spatially by changing a deflection angle of a light beam due to time.
偏向手段は、音響光学効果素子または電気光学効果素子
であることを特徴とする立体画像表示システム。2. The stereoscopic image display system according to claim 1, wherein said deflecting means is an acousto-optic effect element or an electro-optic effect element.
装置から偏向手段を有する光学系に導かれる光束は、単
色であることを特徴とする立体画像表示システム。3. The stereoscopic image display system according to claim 1, wherein the light beam guided from the display device to the optical system having the deflecting means is a single color.
装置に表示される画像が偏向手段による偏向角の変化と
同期して変化することを特徴とする立体画像表示システ
ム。4. The stereoscopic image display system according to claim 1, wherein an image displayed on the display device changes in synchronization with a change in the deflection angle by the deflection means.
系は眼鏡であり、偏向手段による光束の偏向角を時間的
に変化させて両眼視差を変えるようにしたことを特徴と
する立体画像表示システム。5. The stereoscopic image display according to claim 1, wherein the optical system is spectacles, and the binocular parallax is changed by temporally changing the deflection angle of the light beam by the deflecting means. system.
系はプリズムを有していることを特徴とする立体画像表
示システム。6. The stereoscopic image display system according to claim 1, wherein the optical system has a prism.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16711496A JP3758097B2 (en) | 1996-06-27 | 1996-06-27 | Stereoscopic image display system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16711496A JP3758097B2 (en) | 1996-06-27 | 1996-06-27 | Stereoscopic image display system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1010468A true JPH1010468A (en) | 1998-01-16 |
JP3758097B2 JP3758097B2 (en) | 2006-03-22 |
Family
ID=15843704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16711496A Expired - Fee Related JP3758097B2 (en) | 1996-06-27 | 1996-06-27 | Stereoscopic image display system |
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JP (1) | JP3758097B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003241137A (en) * | 2002-02-18 | 2003-08-27 | Fuji Photo Film Co Ltd | Display device |
US7601119B2 (en) | 2006-04-25 | 2009-10-13 | Hrayr Kamig Shahinian | Remote manipulator with eyeballs |
US9295375B2 (en) | 2012-09-27 | 2016-03-29 | Hrayr Karnig Shahinian | Programmable spectral source and design tool for 3D imaging using complementary bandpass filters |
US9456735B2 (en) | 2012-09-27 | 2016-10-04 | Shahinian Karnig Hrayr | Multi-angle rear-viewing endoscope and method of operation thereof |
US9549667B2 (en) | 2007-12-18 | 2017-01-24 | Harish M. MANOHARA | Endoscope and system and method of operation thereof |
US9861261B2 (en) | 2014-03-14 | 2018-01-09 | Hrayr Karnig Shahinian | Endoscope system and method of operation thereof |
US11529042B2 (en) | 2009-11-13 | 2022-12-20 | Hrayr Karnig Shahinian | Stereo imaging miniature endoscope with single imaging and conjugated multi-bandpass filters |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09297282A (en) * | 1996-05-01 | 1997-11-18 | Nippon Telegr & Teleph Corp <Ntt> | Head mount display device |
-
1996
- 1996-06-27 JP JP16711496A patent/JP3758097B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09297282A (en) * | 1996-05-01 | 1997-11-18 | Nippon Telegr & Teleph Corp <Ntt> | Head mount display device |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003241137A (en) * | 2002-02-18 | 2003-08-27 | Fuji Photo Film Co Ltd | Display device |
US7601119B2 (en) | 2006-04-25 | 2009-10-13 | Hrayr Kamig Shahinian | Remote manipulator with eyeballs |
US9549667B2 (en) | 2007-12-18 | 2017-01-24 | Harish M. MANOHARA | Endoscope and system and method of operation thereof |
US10278568B2 (en) | 2007-12-18 | 2019-05-07 | Harish M. MANOHARA | Endoscope and system and method of operation thereof |
US11529042B2 (en) | 2009-11-13 | 2022-12-20 | Hrayr Karnig Shahinian | Stereo imaging miniature endoscope with single imaging and conjugated multi-bandpass filters |
US9713419B2 (en) | 2011-09-27 | 2017-07-25 | California Institute Of Technology | Programmable spectral source and design tool for 3D imaging using complementary bandpass filters |
US11375884B2 (en) | 2011-09-27 | 2022-07-05 | California Institute Of Technology | Multi-angle rear-viewing endoscope and method of operation thereof |
US9295375B2 (en) | 2012-09-27 | 2016-03-29 | Hrayr Karnig Shahinian | Programmable spectral source and design tool for 3D imaging using complementary bandpass filters |
US9456735B2 (en) | 2012-09-27 | 2016-10-04 | Shahinian Karnig Hrayr | Multi-angle rear-viewing endoscope and method of operation thereof |
US9861261B2 (en) | 2014-03-14 | 2018-01-09 | Hrayr Karnig Shahinian | Endoscope system and method of operation thereof |
Also Published As
Publication number | Publication date |
---|---|
JP3758097B2 (en) | 2006-03-22 |
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