JPS643273U - - Google Patents
Info
- Publication number
- JPS643273U JPS643273U JP9398587U JP9398587U JPS643273U JP S643273 U JPS643273 U JP S643273U JP 9398587 U JP9398587 U JP 9398587U JP 9398587 U JP9398587 U JP 9398587U JP S643273 U JPS643273 U JP S643273U
- Authority
- JP
- Japan
- Prior art keywords
- optical path
- projection optical
- pixels
- projector
- diffraction
- 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 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Liquid Crystal (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図は本考案の一実施例の光学系の概略図、
第２図は第１図の一部分の説明図である。
図中、１は光線、２はコンデンサー系、３は表
示体、４は投写レンズ、５は回折板、６はスクリ
ーン面である。
FIG. 1 is a schematic diagram of an optical system according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram of a portion of FIG. 1. In the figure, 1 is a light beam, 2 is a condenser system, 3 is a display body, 4 is a projection lens, 5 is a diffraction plate, and 6 is a screen surface.
Claims (1)
数の画素より成る表示体をスクリーン面上に投写
するプロジエクターにおいて、該スクリーン面上
に投写される前記表示体の各画素間の空隙部に、
該空隙部の隣接する画素の少なくとも一画素の投
写像が分離して投写されるような回折板を投写光
路中に設けたことを特徴とするプロジエクター。 (2) 前記回折板は０次回折光と１次回折像によ
つて、該スクリーン面上における投写像が投写画
素の配列ピツチの略半分分離するピツチ、及び投
写光路中の配置場所が設定されていることを特徴
とする実用新案登録請求の範囲第１項記載のプロ
ジエクター。 (3) 前記回折板を複数個投写光路中に配置した
ことを特徴とする実用新案登録請求の範囲第１項
記載のプロジエクター。 (4) 前記回折板を複数個投写光路中に直交して
配置したことを特徴とする実用新案登録請求の範
囲第１項記載のプロジエクター。[Claims for Utility Model Registration] (1) In a projector that projects a display body consisting of a plurality of pixels arranged with gaps between the pixels onto the screen surface, In the gap between each pixel of the display body,
A projector characterized in that a diffraction plate is provided in a projection optical path so that projection images of at least one pixel of pixels adjacent to the gap are separately projected. (2) The diffraction plate has a pitch at which the projected image on the screen surface is separated by approximately half the array pitch of the projected pixels and a placement location in the projection optical path by the 0th-order diffracted light and the 1st-order diffracted image. 1. A projector according to claim 1, characterized in that: (3) The projector according to claim 1, wherein a plurality of the diffraction plates are arranged in the projection optical path. (4) The projector according to claim 1, wherein a plurality of the diffraction plates are arranged orthogonally in the projection optical path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9398587U JPS643273U (en) | 1987-06-18 | 1987-06-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9398587U JPS643273U (en) | 1987-06-18 | 1987-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643273U true JPS643273U (en) | 1989-01-10 |
Family
ID=31318470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9398587U Pending JPS643273U (en) | 1987-06-18 | 1987-06-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643273U (en) |
-
1987
- 1987-06-18 JP JP9398587U patent/JPS643273U/ja active Pending
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