JPS61248034A - Video display device - Google Patents
Video display deviceInfo
- Publication number
- JPS61248034A JPS61248034A JP60089254A JP8925485A JPS61248034A JP S61248034 A JPS61248034 A JP S61248034A JP 60089254 A JP60089254 A JP 60089254A JP 8925485 A JP8925485 A JP 8925485A JP S61248034 A JPS61248034 A JP S61248034A
- Authority
- JP
- Japan
- Prior art keywords
- screen
- fresnel lens
- image
- images
- observable
- 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
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Stereoscopic And Panoramic Photography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、観察者が観察場所を順次変えることにより順
次具なる映像を立体的に思ることができる様にした映像
表示装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an image display device that allows an observer to sequentially view specific images in three dimensions by sequentially changing the observation location.
従来の技術
従来のこの種の映像表示装置は、例えば’ＡＵＴＯ３Ｔ
ＴＬＲＥＯ３ＣＯＰＹ Ｉ）ＫＬＩＶＥＲＷＨＡＴＨ
ＯＬＯＧＲＡＰＨＹ ＰＲＯＭｌ５ＩＣＤ’ Ｊａｍ
ｅｓＦ、Ｂｕｔｔｅｒｆｉｅｌｄ、１ｓＰＩＫ Ｖｏ
ｌ、 １９９．ムｄｖａｎｃｅｓｉｎ Ｄｉｓｐｌａｙ
Ｔｅｃｈｎｏｌｏｇｙ （１９７９）Ｉ大越孝敬「三
次元画像工学」昭和４７．６．３０ 産業図書に示され
ているように、第４図のような構成になっている。第４
図において、映像源２１ 、２２ 、２３゜２４．２５
．は透過式２重レンティキュラスクリーン（以下スクリ
ーンという）２７上の点２６を中心とする同心円上に両
眼間隔の％に配置されており、各々の映像はスクリーン
２７に拡大投写される。スクリーン２７は、光の入射角
度に対応して光を透過させる特性を有する。従って、映
像源２１．２２，２３，２４．２５の映像は、それぞれ
スクリーン２７によりスクリーン２７を対称面として、
斜線部の観察可能領域２８ 、２９ 、３０゜３１．３
２に提供される。観察者がｑの方向に移動すると順次観
栃者の右眼、左眼は、観察可能領域２８と３０．２９と
３１．３０と３２に位置し、映像源２１と２３．２２と
２４．２３と２６の映像を合成した立体的な映像を観察
することができる。もちろん映像源の映像は、観察者に
それぞれの位置で右眼、左眼の映像として適切なものと
して与えられている。2. Description of the Related Art Conventional video display devices of this type include, for example, 'AUTO3T.
TLREO3COPY I)KLIVERWHAT
OLOGRAPHHY PROMl5ICD' Jam
esF, Butterfield, 1sPIK Vo
l, 199. Mudvancesin Display
Technology (1979) I Takataka Okoshi "Three-dimensional image engineering" June 30, 1972 As shown in Sangyo Tosho, it has a configuration as shown in Figure 4. Fourth
In the figure, video sources 21, 22, 23°24.25
．． are arranged on a concentric circle centered on a point 26 on a transparent double lenticular screen (hereinafter referred to as screen) 27 at a distance of % of the distance between both eyes, and each image is enlarged and projected onto the screen 27. The screen 27 has a characteristic of transmitting light depending on the incident angle of the light. Therefore, the images of the image sources 21, 22, 23, and 24, 25 are transmitted by the screen 27, with the screen 27 as the plane of symmetry, respectively.
Observable areas of diagonal lines 28, 29, 30°31.3
2. When the viewer moves in the direction of q, the viewer's right and left eyes are located in the observable areas 28, 30, 29, 31, 30, and 32, and the image sources 21, 23, 22, and 24, 23. You can observe a three-dimensional image that is a composite of 26 images. Of course, the images of the image source are given to the observer as appropriate images for the right eye and the left eye at each position.
発明が解決しようとする問題点
第５図は、一つの映像源の投写レンズ３３から投写され
た映像を透過式２重レンティキュラスクリーン（以下ス
クリーンという）３４の全面に見ることのできる観察可
能領域３６を現わす原理図である。第６図において一つ
の映像源の投写レンズ３２によシ映像はスクリーン３４
に拡大投写される。スクリーン３４の両端の映像は、そ
れぞれ点Ｐ、Ｑに与えられる。スクリーン３４の指向性
によシ、投写レンズ３３からの光はスクリーン３４を対
称面とし、投写レンズ３３と対称な位置にある仮想レン
ズ径３６を通過する光路をとるのでスクリーン３４全体
に、投写レンズ３３から投写される映像を観察できるの
は、点Ｐ、Ｑの映像が観察者の瞳径ｄを通る範囲であり
、斜線部で示す観察可能領域３６となる。従って、スク
リーン３４全体に投写レンズ３３から投写された映像を
観察できる範囲は狭く限られる。このため第４図におい
て、観察者が順次ｑ方向に移動し、立体的な映像を観察
できるのは、スクリーン２７に対し特に前後方向に狭い
範囲になる。広くしようとすると装置全体が大きくなっ
てしまうという点があった。Problems to be Solved by the Invention FIG. 5 shows an observable area in which an image projected from a projection lens 33 of one image source can be seen over the entire surface of a transparent double lenticular screen (hereinafter referred to as screen) 34. 36 is a principle diagram showing the In FIG. 6, the image is projected onto the screen 34 by the projection lens 32 of one image source.
The image is enlarged and projected. Images at both ends of the screen 34 are provided to points P and Q, respectively. Due to the directivity of the screen 34, the light from the projection lens 33 uses the screen 34 as a plane of symmetry and takes an optical path passing through a virtual lens diameter 36 located symmetrically to the projection lens 33. The image projected from point 33 can be observed in the range where the images of points P and Q pass through the viewer's pupil diameter d, which is the observable area 36 shown by the diagonal line. Therefore, the range in which the image projected from the projection lens 33 onto the entire screen 34 can be observed is narrowly limited. Therefore, in FIG. 4, the viewer moves sequentially in the q direction and can observe a three-dimensional image within a narrow range, especially in the front and rear directions relative to the screen 27. If you try to make it wider, the entire device will become larger.
本発明は装置全体の大きさを変えずに、各映像源に対す
る観察者の観察可能領域を特にスクリーンに対し前後方
向に広げるものであシ、立体的な映像をよシ広い範囲で
観察できるようにしたものである。The present invention expands the observable area of each image source by the observer, especially in the front and rear directions relative to the screen, without changing the overall size of the device. This is what I did.
問題ト、乞解決するための手段
本発明は上記問題点を解決するため、透過式２重レンテ
ィキュラスクリーンの前面にフレネルレンズを介し複数
の映像源を配置した構成にするものである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention has a configuration in which a plurality of image sources are arranged in front of a transmission type double lenticular screen via Fresnel lenses.
作用
本発明は上記した構成によシ、フレネルレンズの集光作
用で各映像源の映像は、等価的に遠い距離から拡大投写
されることになシ、各映像源からの映像をスクリーン全
体に観察できる領域を各々広げることになる。従ってよ
シ広い範囲で立体的な映像を観察できるものである。Operation The present invention has the above-described configuration, and the image from each image source is equivalently enlarged and projected from a long distance due to the condensing action of the Fresnel lens. Each will expand the area that can be observed. Therefore, three-dimensional images can be observed over a wide range.
実施例
第１図は本発明の実施例における一つの映像源からの映
像をスクリーン全体に観察できる範囲を示す図で、映像
源の投写レンズ１からの映像は凸レンズのフレネルレン
ズ３によシ集光され、透過式２重レンティキュラスクリ
ーン（以下スクリーンという）４に拡大投写される。フ
レネルレンズ３の焦点距離内に投写レンズ１は位置して
いるので投写レンズ１からスクリーン４に拡大投写され
た映像は等価的に、フレネルレンズ３を介さず投写レン
ズ２から投写された映像に等しくなる。よって投写レン
ズ１から与えられる映像は、スクリーン４を対称面とし
て投写レンズ２と対称な仮想レンズ径６を通過する映像
として与えられる。スクリーン４全体に投写レンズ１か
ら与えられる映像を観察できるのは、スクリーン４０両
端Ｒ，Ｓの映像が観察者の瞳径ｄを通る範囲であシ、斜
線部の観察可能領域６の領域となる。従って装置全体を
大きくすることなく、一つの映像源からの映像をスクリ
ーン全体に観察できる領域は特に前後方向に広くなる。Embodiment FIG. 1 is a diagram showing the range in which an image from one image source can be observed over the entire screen in an embodiment of the present invention.The image from the projection lens 1 of the image source is focused by a convex Fresnel lens 3. The light is then enlarged and projected onto a transmissive double lenticular screen (hereinafter referred to as screen) 4. Since the projection lens 1 is located within the focal length of the Fresnel lens 3, the image enlarged and projected onto the screen 4 from the projection lens 1 is equivalently equivalent to the image projected from the projection lens 2 without going through the Fresnel lens 3. Become. Therefore, the image provided from the projection lens 1 is provided as an image that passes through a virtual lens diameter 6 that is symmetrical to the projection lens 2 with the screen 4 as the plane of symmetry. The image given from the projection lens 1 to the entire screen 4 can be observed within the range where the images at both ends R and S of the screen 40 pass through the viewer's pupil diameter d, which is the observable area 6 shown in the shaded area. . Therefore, without increasing the size of the entire device, the area in which images from one image source can be observed over the entire screen becomes wider, especially in the front and rear directions.
第２図は本発明の映像表示装置の実施例の映像表示装置
の構成図であシ、映像源７，８，９，１０゜１１は、透
過式２重レンティキュラスクリーン（以下スクリーンと
いう）１４上の点１３を中心に同心円上に両眼間隔の％
に配置され、それぞれの映像ハ凸レンズのフレネルレン
ズ１３を介しスクリーン１４に拡大投写され、スクリー
ン１４０指向性によシ斜線部の観察可能領域１５，１６
，１ア。FIG. 2 is a configuration diagram of a video display device according to an embodiment of the video display device of the present invention. % of interocular distance on a concentric circle centered on point 13 above
The respective images are enlarged and projected onto the screen 14 through the Fresnel lens 13, which is a convex lens, and the observable areas 15, 16 of the shaded areas are projected according to the directivity of the screen 140.
,1a.
１８．１９に与えられる。フレネルレンズ１３の焦点距
離は映像源９とスクリーン１４との距離の２倍のものを
用い、フレネルレンズ１３とスクリーン１４とを間近に
配置すると、各観察可能領域は両眼間隔となシ、前記第
１図において説明したとおシ広い観察可能領域を持つ。Given on 18.19. The focal length of the Fresnel lens 13 is twice the distance between the image source 9 and the screen 14, and when the Fresnel lens 13 and the screen 14 are placed close together, each observable area is spaced apart from the eyes. The device described in FIG. 1 has a wide observable area.
従って、観察者がｒの方向に移動とすると順次観察者の
右眼、左眼は観察可能領域１６と１６．１６と１７．１
７と１８．１８と１９に位置し、映像源了と８，８と９
，９と１０．１０と１１の映像を観察することができる
。映像源の映像は観察者のそれぞれの位置で、右眼、左
眼に適当なものとなるものとして与えられているから、
観察者はそれぞれの位置でこの対をなす映像を合成した
立体的な映像をスクリーン１４に対し特に前後方向に広
い範囲で観察することができる。Therefore, when the observer moves in the direction r, the observer's right eye and left eye sequentially observe the observable areas 16, 16, 16, and 17.1.
Located at 7 and 18, 18 and 19, video source Ryo and 8, 8 and 9
, 9 and 10. Images of 10 and 11 can be observed. Since the images of the image source are given as appropriate for the right and left eyes at each observer's position,
The viewer can observe a three-dimensional image obtained by combining the paired images at each position over a wide range, especially in the front and back directions of the screen 14.
第３図は本発明の映像表示装置の他の実施例の映像表示
装置の構成図である。第３図の映像表示装置は、第２図
に示す映像源８，１１を映像源７゜９．１１に対して９
０°異なる方向に配置し、ハーフミラ−２ｏにより合成
し、フレネルレンズ１３を介してスクリーン１４に拡大
投写するもので、ハーフミラ−により合成するので、映
像源８，１０から投写される映像は映像源８，１０をそ
れぞれ映像源７と９，９と１１の間に配置し投写された
映像に等価となシ、第２図に示す実施例と等価となる。FIG. 3 is a block diagram of a video display device according to another embodiment of the present invention. The video display device shown in FIG. 3 has video sources 8 and 11 shown in FIG.
They are placed in different directions by 0 degrees, are combined by a half mirror 2o, and are enlarged and projected onto the screen 14 via a Fresnel lens 13. Since the images are combined by a half mirror, the images projected from the image sources 8 and 10 are the same as the image source. 8 and 10 are placed between image sources 7 and 9, and between 9 and 11, respectively, and are equivalent to the projected images, which is equivalent to the embodiment shown in FIG.
従って第３図に示すように映像源７，８゜９．１０．１
１を配置しハーフミラ−で合成する構成にしても、第２
図で示す構成と同様にスクリー７１４に対し特に前後方
向に広い範囲で立体的な映像を観察することができる。Therefore, as shown in FIG.
1 and synthesized with a half mirror, the 2nd
Similar to the configuration shown in the figure, a three-dimensional image can be observed over a wide range, particularly in the front and rear directions with respect to the screen 714.
発明の効果
本発明によれば、複数の映像源からの映像を凸レンズの
フレネルレンズを介して、透過式２重レンティキュラス
クリーンに拡大投写する構成にすることによシ、装置全
体を大きくすることなく、映像を立体的に観察できる範
囲をスクリーンに対し特に前後方向に広くすることがで
きる。Effects of the Invention According to the present invention, images from a plurality of image sources are enlarged and projected onto a transparent double lenticular screen through a convex Fresnel lens, thereby increasing the size of the entire apparatus. Therefore, the range in which images can be observed three-dimensionally can be widened, especially in the front and rear directions with respect to the screen.
第１図は本発明の一実施例による映像表示装置の要部構
成図、第２図はその実施例の構成図、第３図は他の実施
例の構成図、第４図は従来の映像表示装置の構成図、第
５図はその原理図である。
１．２・・・・・・投写レンズ、３．１３・・・・・・
凸レンズのフレネルレンズ、４，１４，２６．３３・・
・・・・透過式２重レンティキュラスクリーン、５．３
４・・・・・・仮想レンズ径、６，１５．１６，１７．
１８゜１９・・・・・・観察可能領域、７，８，９，１
０．１１・・・・・・映像源、２ｏ・・・・・・ハーフ
ミラ−０区 区
八
−睦
ピに
憾 神
法 トね〉ミミ
１＆′−トミ
第 ４ 図
第 ５ 図FIG. 1 is a block diagram of main parts of a video display device according to an embodiment of the present invention, FIG. 2 is a block diagram of the embodiment, FIG. 3 is a block diagram of another embodiment, and FIG. 4 is a diagram of a conventional video display device. The configuration diagram of the display device, FIG. 5, is a diagram showing its principle. 1.2...Projection lens, 3.13...
Convex Fresnel lens, 4, 14, 26, 33...
...Transparent double lenticular screen, 5.3
4...Virtual lens diameter, 6, 15.16, 17.
18゜19... Observable area, 7, 8, 9, 1
0.11...Video source, 2o...Half Mirror - Ward 0 Ward 8 - Mutsumi ni Hikaru Shinpo Tone〉Mimi 1&' - Tomi 4th Figure 5
Claims (1)
ィキュラスクリーンに対向して配置し、前記複数の映像
源と前記透過式２重レンティキュラスクリーンの間には
、凸レンズのフレネルレンズが前記透過式２重レンティ
キュラスクリーンに隣接して配置し、前記フレネルレン
ズの焦点距離内に前記複数の映像源を配置したことを特
徴とする映像表示装置。A plurality of image sources arranged in sequence in the horizontal direction are arranged facing the transmission type double lenticular screen, and a convex Fresnel lens is disposed between the plurality of image sources and the transmission type double lenticular screen. An image display device characterized in that the plurality of image sources are arranged adjacent to a transmission type double lenticular screen and within a focal length of the Fresnel lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60089254A JPH06100780B2 (en) | 1985-04-25 | 1985-04-25 | Video display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60089254A JPH06100780B2 (en) | 1985-04-25 | 1985-04-25 | Video display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61248034A true JPS61248034A (en) | 1986-11-05 |
| JPH06100780B2 JPH06100780B2 (en) | 1994-12-12 |
Family
ID=13965624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60089254A Expired - Lifetime JPH06100780B2 (en) | 1985-04-25 | 1985-04-25 | Video display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06100780B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375381A (en) * | 2018-11-27 | 2019-02-22 | 浙江理工大学 | A kind of 3 D displaying method and system of high information flux low crosstalk |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4860632A (en) * | 1971-11-27 | 1973-08-25 | ||
| JPS592033A (en) * | 1982-06-28 | 1984-01-07 | Hitachi Ltd | Rear projection screen |
-
1985
- 1985-04-25 JP JP60089254A patent/JPH06100780B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4860632A (en) * | 1971-11-27 | 1973-08-25 | ||
| JPS592033A (en) * | 1982-06-28 | 1984-01-07 | Hitachi Ltd | Rear projection screen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375381A (en) * | 2018-11-27 | 2019-02-22 | 浙江理工大学 | A kind of 3 D displaying method and system of high information flux low crosstalk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06100780B2 (en) | 1994-12-12 |
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