JPH0463489U - - Google Patents
Info
- Publication number
- JPH0463489U JPH0463489U JP10755390U JP10755390U JPH0463489U JP H0463489 U JPH0463489 U JP H0463489U JP 10755390 U JP10755390 U JP 10755390U JP 10755390 U JP10755390 U JP 10755390U JP H0463489 U JPH0463489 U JP H0463489U
- Authority
- JP
- Japan
- Prior art keywords
- display device
- type display
- projection type
- rear projection
- respect
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims 3
- 239000002131 composite material Substances 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 2
- 230000004907 flux Effects 0.000 claims 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図は本考案の背面投射型表示装置の実施例
である。第２図は本考案の背面投射型表示筺体に
使われる投射装置の例である。第３図は本考案の
背面投射型表示装置の他の実施例である。第４図
は背面投射型表示装置の従来例である。第５図は
投射装置の従来例である。
図中、１は光源、２は投射レンズ、３−１，３
−２，３−３は液晶ライトバルブ、４−１，４−
２，４−３，４−４はダイクロミラー、５−１，
５−２は全反射ミラー、６は投射装置、７は全反
射ミラー、８はスクリーン、９は背面投射型表示
装置筺体である。
FIG. 1 shows an embodiment of the rear projection type display device of the present invention. FIG. 2 is an example of a projection device used in the rear projection type display case of the present invention. FIG. 3 shows another embodiment of the rear projection type display device of the present invention. FIG. 4 shows a conventional example of a rear projection type display device. FIG. 5 shows a conventional example of a projection device. In the figure, 1 is a light source, 2 is a projection lens, 3-1, 3
-2, 3-3 are liquid crystal light valves, 4-1, 4-
2, 4-3, 4-4 are dichroic mirrors, 5-1,
5-2 is a total reflection mirror, 6 is a projection device, 7 is a total reflection mirror, 8 is a screen, and 9 is a rear projection type display device housing.
Claims (1)
た色成分光で照明した後に合成光学系により各投
射原画の光束を合成画像として投射レンズを介し
て筺体前面に設けたスクリーンへ投射する背面投
射型表示装置に於いて、 前記投射レンズの光軸を前記合成画像の中心に
対して前記色分解系側に配置するとともに前記ス
クリーンの中心を前記投射レンズの光軸に対して
前記色分解系側に配置したことを特徴とする背面
投射型表示装置。 (2) 前記光軸の前記合成画像の中心に対するシ
フト量は、前記投射原画の有効画面の前記投射レ
ンズの光軸のシフト方向に関する長さをＬとする
とき、０．１Ｌから０．４５Ｌまでであることを
特徴とする特許請求の範囲第１項記載の背面投射
型表示装置。[Claims for Utility Model Registration] (1) After illuminating a plurality of projected original images with color component light separated by a color separation system, the light flux of each projected original image is converted into a composite image by a combining optical system and sent to the front of the housing via a projection lens. In a rear projection type display device that projects onto a screen provided in A rear projection type display device, characterized in that it is arranged on the color separation system side with respect to the axis. (2) The amount of shift of the optical axis with respect to the center of the composite image is from 0.1L to 0.45L, where L is the length of the effective screen of the projection original image in the shift direction of the optical axis of the projection lens. A rear projection type display device according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10755390U JPH0463489U (en) | 1990-10-13 | 1990-10-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10755390U JPH0463489U (en) | 1990-10-13 | 1990-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0463489U true JPH0463489U (en) | 1992-05-29 |
Family
ID=31854123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10755390U Pending JPH0463489U (en) | 1990-10-13 | 1990-10-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0463489U (en) |
-
1990
- 1990-10-13 JP JP10755390U patent/JPH0463489U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0734183A3 (en) | Efficient optical system for a high resolution projection display employing reflection light valves | |
| EP0734184A3 (en) | Efficient optical system for a high resolution projection display employing reflection light valves | |
| EP0984637A3 (en) | Projection display system for reflective light valves | |
| JPH09510858A (en) | Beam combiner for LCD projector using pentaprism | |
| JPS6326833U (en) | ||
| JPS6432291A (en) | Back projection type display device | |
| JPH02119683U (en) | ||
| JPH0552844U (en) | LCD projector | |
| JPH10206815A5 (en) | ||
| JPH03107883U (en) | ||
| JPS6026040U (en) | Projection optical system in continuous frame film observation projector | |
| JPH0248940U (en) | ||
| JPS6027576U (en) | Color image projection device | |
| JPS643885U (en) | ||
| JPH0434074U (en) | ||
| JPH09329854A (en) | Projection display device | |
| JPH046037U (en) | ||
| JPH0267312U (en) | ||
| JPS6360120U (en) | ||
| JPH02309387A (en) | Projection type display device | |
| JPH01166388U (en) | ||
| JPH0536445U (en) | LCD projector | |
| JPH02138786U (en) | ||
| JPH0479355U (en) | ||
| JPH01246588A (en) | Light guiding system for projection type display device |