JP2001154608A - Multidirectional projection type screen device - Google Patents
Multidirectional projection type screen deviceInfo
- Publication number
- JP2001154608A JP2001154608A JP33813499A JP33813499A JP2001154608A JP 2001154608 A JP2001154608 A JP 2001154608A JP 33813499 A JP33813499 A JP 33813499A JP 33813499 A JP33813499 A JP 33813499A JP 2001154608 A JP2001154608 A JP 2001154608A
- Authority
- JP
- Japan
- Prior art keywords
- image light
- screen
- projected
- image
- light
- 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
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複数方向投射型の
スクリーン装置に関し、特に、１台の投射装置により複
数方向に映像光の投射を行う複数方向投射型のスクリー
ン装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-directional projection type screen device, and more particularly to a multi-directional projection type screen device in which a single projection device projects image light in a plurality of directions.
【０００２】[0002]
【従来の技術】従来、複数方向投射型のスクリーン装置
は、例えば、１台の投射装置により複数のスクリーンに
映像を投射する型式の装置をいう。近年、高輝度のプロ
ジェクタが普及しつつあり、使用環境によっては必要以
上の明るさを持つ場合も見受けられる。これらの映像光
を分けて使用することにより、１台の投射装置により適
正な明るさで複数のスクリーンに映像を映し出すことが
可能となる。2. Description of the Related Art Conventionally, a multi-directional projection type screen device is, for example, a device of a type in which a single projection device projects images on a plurality of screens. In recent years, high-brightness projectors have become widespread, and depending on the use environment, there are cases where the brightness is higher than necessary. By separately using these image lights, it becomes possible to project images on a plurality of screens with appropriate brightness by one projection device.
【０００３】図３は、本発明と技術分野の類似する従来
例１であり、特開平５−１０７６５９号公報の「プロジ
ェクタ装置」の構成内容を示す図である。本従来例１
は、背面投射形ディスプレイにおける反射用表面ミラー
をハーフミラー２３とし、同ハーフミラー２３で反射し
た映像をスクリーン２４に投写するとともに透過した映
像をスクリーン２５に投写する。本従来例１では、一つ
の投写部２１の光学系で複数方向に映像を投写すること
により、多数の観察者を対象とする多方向から観察可能
にする複数のスクリーンを有するプロジェクタ装置を開
示している。FIG. 3 shows a conventional example 1 similar in technical field to the present invention, and is a diagram showing the configuration of a "projector apparatus" disclosed in Japanese Patent Laid-Open No. Hei 5-107759. Conventional example 1
The half mirror 23 is used as a reflecting surface mirror in a rear projection display, and the image reflected by the half mirror 23 is projected on a screen 24 and the transmitted image is projected on a screen 25. In the first conventional example, a projector device having a plurality of screens that allows a plurality of observers to observe images from multiple directions by projecting images in a plurality of directions using an optical system of one projection unit 21 is disclosed. ing.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の技術では、投射される複数の映像は、左右が反転
し、また個々の映像が相違しており、それぞれの映像を
観察するのに支障を生じる。また、投射画面の拡大化と
装置の縮小化に制限が生じる問題を伴う。However, according to the above-mentioned conventional technique, a plurality of projected images are inverted left and right, and individual images are different, which hinders observation of each image. Occurs. In addition, there is a problem in that the enlargement of the projection screen and the reduction in the size of the apparatus are restricted.
【０００５】本発明は、形態が同一の映像を投射する複
数方向投射型のスクリーン装置を提供することを目的と
する。[0005] It is an object of the present invention to provide a multi-directional projection type screen device for projecting images of the same form.
【０００６】[0006]
【課題を解決するための手段】かかる目的を達成するた
め、本発明の複数方向投射型のスクリーン装置は、所定
の映像光を投射する投射装置と、投射光の一部を反射し
かつ一部を透過する半透過面と、反射された一部の映像
光を全面反射する全反射面とを有し、一の映像光から分
光された同様形態の複数の映像を投射することを特徴と
している。In order to achieve the above object, a multi-directional projection type screen device according to the present invention comprises: a projection device for projecting a predetermined image light; a projection device for reflecting a part of the projection light; Having a semi-transmissive surface that transmits light, and a total reflection surface that totally reflects a part of the reflected image light, and projects a plurality of images of the same form separated from one image light. .
【０００７】上記の全面反射した映像光を透過させる透
過面をさらに有し、また透過した一部の映像光を受けて
表示する第１のスクリーンと、全面反射した映像光を受
けて表示する第２のスクリーンとをさらに有するとよ
い。A first screen for receiving and displaying the partially reflected image light, and a first screen for receiving and displaying the partially reflected image light; And two screens.
【０００８】なお、半透過面と全反射面との角度を変え
ることにより第２のスクリーンの角度を可変とし、透過
面の映像光に対する角度を変えることにより映像光の部
分反射機能を生じさせこの映像光のさらなる分光を可能
とし、分光された映像光の拡大角度を制御するレンズを
さらに有するとよい。The angle of the second screen is made variable by changing the angle between the semi-transmissive surface and the total reflective surface, and the partial reflection function of the image light is produced by changing the angle of the transmissive surface with respect to the image light. It is preferable to further include a lens that enables further splitting of the image light and controls an expansion angle of the split image light.
【０００９】[0009]
【発明の実施の形態】次に、添付図面を参照して本発明
による複数方向投射型のスクリーン装置の実施の形態を
詳細に説明する。図１および図２を参照すると、本発明
の複数方向投射型のスクリーン装置の一実施形態が示さ
れている。図１が第１の実施例、図２が第２の実施例を
示し、各図はスクリーン装置を上方から見た場合の概念
的な構成例を表している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a multi-directional projection type screen device according to the present invention will be described in detail with reference to the accompanying drawings. Referring to FIGS. 1 and 2, there is shown one embodiment of a multi-directional projection type screen device of the present invention. FIG. 1 shows a first embodiment, and FIG. 2 shows a second embodiment. Each drawing shows a conceptual configuration example when the screen device is viewed from above.
【００１０】第１の実施例を示す図１において、本実施
例のスクリーン装置は、透過及び反射を行う半透過面
１、全反射面２、スクリーン３、４、透過面６、投射装
置１０を有して構成される。この実施例では、透過及び
反射を行う半透過面１と全反射面２、透過光に対して垂
直に配置されたスクリーン３と反射光に対して垂直に置
かれたスクリーン４の配置関係とされる。In FIG. 1 showing the first embodiment, the screen device of the present embodiment comprises a semi-transmissive surface 1, a total reflection surface 2, screens 3, 4, a transmission surface 6, and a projection device 10 for transmitting and reflecting. It is configured to have. In this embodiment, the transmissive surface 1 and the transflective surface 2 that transmit and reflect light, the screen 3 disposed perpendicular to the transmitted light, and the screen 4 disposed perpendicular to the reflected light are used. You.
【００１１】まず、投射装置１０からの映像光は、半透
過面１において一部反射され、残りの映像光が透過して
スクリーン３に投射される。半透過面１で反射された一
部の映像光は、全反射面２において全反射されスクリー
ン４に投射される。First, the image light from the projection device 10 is partially reflected on the semi-transmissive surface 1, and the remaining image light is transmitted and projected on the screen 3. Part of the image light reflected on the semi-transmissive surface 1 is totally reflected on the total reflection surface 2 and projected on the screen 4.
【００１２】全反射面２では、スクリーン３とスクリー
ン４に投射される映像の形態において、まず、半透過面
１で左右反転され、さらに全反射面２で再度左右に反転
される。このため、スクリーン４に投射される映像は、
投射装置１０から投射される際の映像と同一状態とな
る。なお、スクリーン３へ投射される映像は、透過光で
あり無反転光であるため、投射装置１０から投射される
際の映像と同一状態となる。故に、スクリーン３上の映
像とスクリーン４上の映像とは同一形態となる。On the total reflection surface 2, in the form of an image projected on the screen 3 and the screen 4, the image is first inverted left and right on the transflective surface 1, and then on the total reflection surface 2. Therefore, the image projected on the screen 4 is
It is in the same state as the image when projected from the projection device 10. Since the image projected on the screen 3 is transmitted light and non-inverted light, the image is in the same state as the image projected from the projection device 10. Therefore, the image on the screen 3 and the image on the screen 4 have the same form.
【００１３】（効果）本装置を用いることにより、１台
の投射装置を用いて複数のスクリーンに無反転の投射映
像を形成することが可能となる。(Effect) By using the present apparatus, it is possible to form a non-reversed projected image on a plurality of screens using one projection apparatus.
【００１４】（他の実施例）図１の反射、透過を行う半
透過面１と全反射を行う全反射面２の相対角度５を変え
ることでスクリーン４の角度が任意に決定される。この
ため、例えば垂直や平行に配置された２枚のスクリーン
の両面に１台の投射装置からの同じ映像を投射すること
が可能となる。(Other Embodiments) The angle of the screen 4 can be arbitrarily determined by changing the relative angle 5 between the transflective surface 1 for performing reflection and transmission and the total reflection surface 2 for performing total reflection in FIG. For this reason, for example, the same image from one projection device can be projected on both surfaces of two screens arranged vertically or in parallel.
【００１５】また、図１のスクリーン４に投射する映像
光の光軸と透過面６の角度とが垂直の場合は、映像光は
効率よく透過面６を透過する。しかし、光軸に対する透
過面６の角度を変えることで透過面６には半透過面１と
同様な半透過の光学的効果が現れ、さらに多くのスクリ
ーンへの投射が可能となる。When the optical axis of the image light projected on the screen 4 shown in FIG. 1 is perpendicular to the angle of the transmission surface 6, the image light passes through the transmission surface 6 efficiently. However, by changing the angle of the transmission surface 6 with respect to the optical axis, the transmission surface 6 has a semi-transmission optical effect similar to that of the semi-transmission surface 1, and projection onto more screens is possible.
【００１６】また、図２のレンズ７、およびレンズ８を
追加することにより、投射光の拡大角度を変えることが
できる。これにより、近接して配置されたスクリーンや
遠方に配置されたスクリーンへの投射が可能となる。故
に、投射装置とスクリーンとの距離を自由に設定するこ
とが可能となる。Further, by adding the lens 7 and the lens 8 shown in FIG. 2, the enlargement angle of the projection light can be changed. Accordingly, it is possible to perform projection on a screen arranged close to or a screen arranged far away. Therefore, the distance between the projection device and the screen can be freely set.
【００１７】尚、上述の実施形態は本発明の好適な実施
の一例である。但し、これに限定されるものではなく、
本発明の要旨を逸脱しない範囲内において種々変形実施
が可能である。The above embodiment is an example of a preferred embodiment of the present invention. However, it is not limited to this.
Various modifications can be made without departing from the spirit of the present invention.
【００１８】[0018]
【発明の効果】以上の説明より明らかなように、本発明
の複数方向投射型のスクリーン装置は、所定の映像光を
投射し、投射光の一部を反射しかつ一部を透過し、反射
された一部の映像光を全面反射し、一の映像光から分光
された複数の同様形態の映像を得る。この構成により、
１台の投射装置を用いて個々に独立した複数のスクリー
ンに無反転の映像の形成が可能となる。As is apparent from the above description, the multidirectional projection type screen device of the present invention projects predetermined image light, reflects a part of the projected light, transmits a part of the projected light, and reflects the reflected light. A part of the image light obtained is totally reflected, and a plurality of images of the same form separated from one image light are obtained. With this configuration,
Using one projection device, non-inverted images can be formed on a plurality of screens independently of each other.
【図１】本発明の複数方向投射型のスクリーン装置の第
１の実施形態の構成を示す概念図である。FIG. 1 is a conceptual diagram showing a configuration of a first embodiment of a multi-directional projection type screen device of the present invention.
【図２】第２の実施形態の構成を示す概念図である。FIG. 2 is a conceptual diagram illustrating a configuration of a second embodiment.
【図３】従来の構成例を示す概念図である。FIG. 3 is a conceptual diagram showing a conventional configuration example.
１ 半透過面 ２ 全反射面 ３、４ スクリーン ６ 透過面 ７、８ レンズ １０ 投射装置 DESCRIPTION OF SYMBOLS 1 Semi-transmissive surface 2 Total-reflective surface 3, 4 Screen 6 Transmitting surface 7, 8 Lens 10 Projection device
Claims (6)
と、 前記反射された一部の映像光を全面反射する全反射面と
を有して構成され、 一の映像光から分光された同様形態の複数の映像を投射
することを特徴とする複数方向投射型のスクリーン装
置。1. A projection device for projecting a predetermined image light, a semi-transmissive surface that reflects a part of the projection light and transmits a part of the projection light, and a whole that totally reflects the part of the reflected image light A multi-directional projection type screen device configured to have a reflecting surface and project a plurality of images of the same form separated from one image light.
過面を、さらに有して構成されたことを特徴とする請求
項１に記載の複数方向投射型のスクリーン装置。2. The multi-directional projection type screen device according to claim 1, further comprising a transmission surface through which the image light totally reflected is transmitted.
する第１のスクリーンと、 前記全面反射した映像光を受けて表示する第２のスクリ
ーンと、 をさらに有することを特徴とする請求項１または２に記
載の複数方向投射型のスクリーン装置。3. The image display device according to claim 1, further comprising: a first screen that receives and displays the transmitted part of the image light; and a second screen that receives and displays the totally reflected image light. Item 3. A multi-directional projection type screen device according to item 1 or 2.
ることにより、前記第２のスクリーンの角度を可変とし
たことを特徴とする請求項３に記載の複数方向投射型の
スクリーン装置。4. The multi-directional projection type screen device according to claim 3, wherein the angle of the second screen is made variable by changing the angle between the semi-transmissive surface and the total reflection surface. .
ることにより、前記映像光の部分反射機能を生じさせ、
該映像光のさらなる分光を可能としたことを特徴とする
請求項２から４のいずれかに記載の複数方向投射型のス
クリーン装置。5. A partial reflection function of the image light is generated by changing an angle of the transmission surface with respect to the image light,
The multi-directional projection type screen device according to any one of claims 2 to 4, wherein the image light can be further separated.
するレンズを、さらに有することを特徴とする請求項１
から５のいずれかに記載の複数方向投射型のスクリーン
装置。6. The apparatus according to claim 1, further comprising a lens for controlling an angle of expansion of the split image light.
6. The multi-directional projection type screen device according to any one of items 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33813499A JP3529310B2 (en) | 1999-11-29 | 1999-11-29 | Multi-directional projection type screen device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33813499A JP3529310B2 (en) | 1999-11-29 | 1999-11-29 | Multi-directional projection type screen device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001154608A true JP2001154608A (en) | 2001-06-08 |
| JP3529310B2 JP3529310B2 (en) | 2004-05-24 |
Family
ID=18315240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33813499A Expired - Fee Related JP3529310B2 (en) | 1999-11-29 | 1999-11-29 | Multi-directional projection type screen device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3529310B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003043588A (en) * | 2001-07-26 | 2003-02-13 | Meiko:Kk | Projector device |
| JP2006011237A (en) * | 2004-06-29 | 2006-01-12 | Denso Corp | Display system for vehicle |
| JP2009157263A (en) * | 2007-12-27 | 2009-07-16 | Toshiba Tec Corp | Image projection method and image projection system |
| US7611250B2 (en) | 2005-10-27 | 2009-11-03 | Chunghwa Picture Tubes, Ltd. | Projector |
| JP2012152553A (en) * | 2011-01-21 | 2012-08-16 | Hae Yong Choi | Stereoscopic vision theater system |
| JP2012181534A (en) * | 2012-04-19 | 2012-09-20 | Toshiba Tec Corp | Image projection method and image projection system |
-
1999
- 1999-11-29 JP JP33813499A patent/JP3529310B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003043588A (en) * | 2001-07-26 | 2003-02-13 | Meiko:Kk | Projector device |
| JP2006011237A (en) * | 2004-06-29 | 2006-01-12 | Denso Corp | Display system for vehicle |
| US7611250B2 (en) | 2005-10-27 | 2009-11-03 | Chunghwa Picture Tubes, Ltd. | Projector |
| JP2009157263A (en) * | 2007-12-27 | 2009-07-16 | Toshiba Tec Corp | Image projection method and image projection system |
| JP2012152553A (en) * | 2011-01-21 | 2012-08-16 | Hae Yong Choi | Stereoscopic vision theater system |
| JP2012181534A (en) * | 2012-04-19 | 2012-09-20 | Toshiba Tec Corp | Image projection method and image projection system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3529310B2 (en) | 2004-05-24 |
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