JPH03107883U - - Google Patents
Info
- Publication number
- JPH03107883U JPH03107883U JP1566190U JP1566190U JPH03107883U JP H03107883 U JPH03107883 U JP H03107883U JP 1566190 U JP1566190 U JP 1566190U JP 1566190 U JP1566190 U JP 1566190U JP H03107883 U JPH03107883 U JP H03107883U
- Authority
- JP
- Japan
- Prior art keywords
- light
- red
- blue
- display device
- color display
- 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 description 2
- 239000003086 colorant Substances 0.000 claims 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Description
第１図は本考案の一実施例の光学系を示す構成
図、第２図は従来の投射型カラー表示装置を示す
構成図、第３図はダイクロイツクプリズムの構造
及び動作を示す説明図である。
図において、１…光源、２…凹面鏡、２３…非
球面レンズ、２５…第１の青色反射ダイクロイツ
クミラー、２６…第１の赤色反射ダイクロイツク
ミラー、３２Ｂ，３２Ｒ，３２Ｇ…液晶ライトバ
ルブ、３３ａ，３３ｂ，３３ｃ…凹レンズ、３４
…第２の青色反射ダイクロイツクミラー、３５…
第２の赤色反射ダイクロイツクミラー、１４…プ
ロジエクシヨンレンズ、１７…スクリーン。
Fig. 1 is a block diagram showing an optical system according to an embodiment of the present invention, Fig. 2 is a block diagram showing a conventional projection type color display device, and Fig. 3 is an explanatory diagram showing the structure and operation of a dichroic prism. be. In the figure, 1... light source, 2... concave mirror, 23... aspherical lens, 25... first blue reflective dichroic mirror, 26... first red reflective dichroic mirror, 32B, 32R, 32G... liquid crystal light valve, 33a , 33b, 33c...concave lens, 34
...Second blue reflective dichroic mirror, 35...
Second red reflective dichroic mirror, 14...projection lens, 17...screen.
Claims (1)
、緑の照明を行い、三色の画像を合成して投射す
るカラー表示装置において、 光源の色分解を行う第１の青色反射及び赤色反
射の二枚のダイクロイツクミラーと、 上記ダイクロイツクミラーにより色分解された
青色光、赤色光及び緑色光の各平行光を広げる凹
レンズと、 上記透過型ライトバルブを透過した後の青色光
、赤色光及び緑色光の各光軸を合わせる手段とし
て、第２の青色反射及び赤色反射の二枚のダイク
ロイツクミラーとを設けたことを特徴とする投射
型カラー表示装置。[Claims for Utility Model Registration] In a color display device that illuminates a transmissive light valve with the three primary colors of light, blue, red, and green, and projects a composite image of the three colors, a color display device that performs color separation of a light source. 1, two dichroic mirrors that reflect blue and red; a concave lens that spreads each parallel light of blue light, red light, and green light color-separated by the dichroic mirror; 1. A projection type color display device comprising two dichroic mirrors for second blue reflection and red reflection as means for aligning the respective optical axes of blue light, red light and green light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1566190U JPH03107883U (en) | 1990-02-21 | 1990-02-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1566190U JPH03107883U (en) | 1990-02-21 | 1990-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03107883U true JPH03107883U (en) | 1991-11-06 |
Family
ID=31518954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1566190U Pending JPH03107883U (en) | 1990-02-21 | 1990-02-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03107883U (en) |
-
1990
- 1990-02-21 JP JP1566190U patent/JPH03107883U/ja active Pending
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