JPS59101577U - Lens for video projector - Google Patents
Lens for video projectorInfo
- Publication number
- JPS59101577U JPS59101577U JP19567782U JP19567782U JPS59101577U JP S59101577 U JPS59101577 U JP S59101577U JP 19567782 U JP19567782 U JP 19567782U JP 19567782 U JP19567782 U JP 19567782U JP S59101577 U JPS59101577 U JP S59101577U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- video projector
- lens assembly
- input
- cathode ray
- 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
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は、従来のビデオプロジェクタ−の主要図、−第
2図は、従来のCRTと、組レンズを構成゛する単レン
ズ及び光学素子の配置図、第3図は、高利得スクリーン
の入射光に対する射出光の輝度分布図、第4図は従来の
グイクロイックミラーを使用したビデオプロジェクタ−
の主要図、第5図は、本考案の一実施例によるビデオプ
ロジェクタ−の主要図、第6図は、本考案による組レン
ズを構成する単レンズ及び光学素子、CRTの配置の一
例を示す説明図である。
1・・・ブルーCRT、2・・・グリーンCRT、3・
・・レッドCRT、4・・・スクリーン、5.5’−・
・・グイクロイックミラー、6・・・出力レンズ、7・
・・ミラー、8−1.81・・・凸レンズ、9−1.9
−2・・・入力レンズ、10・・・CRT、IQ−1・
・・ブルーCRT。
10−2・・・レッドCRT、 l、 l’・・・ブ
ルー周辺光、2.2’−・・グリーン周辺光、3.3′
・・・レッド周辺光、4.4′・・・シアン周辺光。
琴 −4−図′ −Figure 1 is a main diagram of a conventional video projector, - Figure 2 is a layout diagram of a conventional CRT, a single lens and optical elements that make up a lens set, and Figure 3 is a diagram showing the incidence of a high-gain screen. Figure 4 is a diagram of the luminance distribution of the emitted light relative to the light.
FIG. 5 is a main diagram of a video projector according to an embodiment of the present invention, and FIG. 6 is an explanation showing an example of the arrangement of a single lens, optical elements, and CRT constituting a lens assembly according to the present invention. It is a diagram. 1... Blue CRT, 2... Green CRT, 3...
・・Red CRT, 4...Screen, 5.5'-・
... Guicroic mirror, 6... Output lens, 7.
... Mirror, 8-1.81 ... Convex lens, 9-1.9
-2...Input lens, 10...CRT, IQ-1.
...Blue CRT. 10-2...Red CRT, l, l'...Blue ambient light, 2.2'-...Green ambient light, 3.3'
...Red ambient light, 4.4'...Cyan ambient light. Koto -4-Figure'-
Claims (1)
を割りあて、前記3個の陰極線管に対してそれぞれ、複
数枚の単レンズで構成する組レンズを対応させ前記3個
安陰極線管上の映像をスクリーン上に拡大投写するビデ
オプロジェクタ−において、前記組レンズの内ブルー用
組レンズとレッド用組レンズの2本を一体化した組レン
ズとして入カレン411B−1,9−i及び入力レンズ
群[2,9−2を2組持ち、前記2組の入力レンズa−
1,9−1及び8−2.9−2と出力レンズ群6との間
にグイクロイックミラー5′を配置シたことを特徴とす
るビデオプロジェクタ−用レンズOne cathode ray tube is assigned to each of the primary colors of color television, and each of the three cathode ray tubes is associated with a lens set consisting of a plurality of single lenses. In a video projector that enlarges and projects an image onto a screen, an input lens 411B-1, 9-i and an input lens group are used as a lens assembly that integrates two of the lens assembly, a lens assembly for blue and a lens assembly for red. [2, 9-2, and the two sets of input lenses a-
1, 9-1 and 8-2. A video projector lens characterized in that a guichroic mirror 5' is arranged between 9-2 and an output lens group 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19567782U JPS59101577U (en) | 1982-12-27 | 1982-12-27 | Lens for video projector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19567782U JPS59101577U (en) | 1982-12-27 | 1982-12-27 | Lens for video projector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59101577U true JPS59101577U (en) | 1984-07-09 |
Family
ID=30420140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19567782U Pending JPS59101577U (en) | 1982-12-27 | 1982-12-27 | Lens for video projector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59101577U (en) |
-
1982
- 1982-12-27 JP JP19567782U patent/JPS59101577U/en active Pending
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