JPH0366276U - - Google Patents
Info
- Publication number
- JPH0366276U JPH0366276U JP12504189U JP12504189U JPH0366276U JP H0366276 U JPH0366276 U JP H0366276U JP 12504189 U JP12504189 U JP 12504189U JP 12504189 U JP12504189 U JP 12504189U JP H0366276 U JPH0366276 U JP H0366276U
- Authority
- JP
- Japan
- Prior art keywords
- entrance surface
- image forming
- forming section
- lens
- projection device
- 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
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図〜第８図は、それぞれ、本発明の第１〜
第８の実施例の断面図である。第９図および第１
０図は、それぞれ、従来の液晶プロジエクタおよ
びスライドプロジエクタの断面図である。
１……レンズ、２０……画像形成部、２０ａ…
…入射面、２０ｂ……射出面、Ｂ……レンズの焦
点深度。
FIGS. 1 to 8 respectively represent the first to fourth embodiments of the present invention.
FIG. 7 is a cross-sectional view of the eighth embodiment. Figure 9 and 1
FIG. 0 is a cross-sectional view of a conventional liquid crystal projector and a slide projector, respectively. 1... Lens, 20... Image forming section, 20a...
...Incidence surface, 20b...Exit surface, B...depth of focus of lens.
Claims (1)
写する投写装置において、画像形成部に光が入射
する入射面と、この入射面にほぼ対向しており入
射面に入射した光が画像形成部から射出する射出
面とが、レンズの焦点深度の範囲外にあることを
特徴とする投写装置。 In a projection device that projects an image formed on an image forming section through a lens, there is an entrance surface through which light enters the image forming section, and an entrance surface that is almost opposite to this entrance surface, so that the light that has entered the entrance surface exits from the image forming section. A projection device characterized in that an exit surface is outside the depth of focus of a lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12504189U JPH0366276U (en) | 1989-10-25 | 1989-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12504189U JPH0366276U (en) | 1989-10-25 | 1989-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0366276U true JPH0366276U (en) | 1991-06-27 |
Family
ID=31672930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12504189U Pending JPH0366276U (en) | 1989-10-25 | 1989-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0366276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11295722A (en) * | 1998-04-15 | 1999-10-29 | Seiko Epson Corp | Liquid crystal panel for projection type liquid crystal device and projection type liquid crystal device |
-
1989
- 1989-10-25 JP JP12504189U patent/JPH0366276U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11295722A (en) * | 1998-04-15 | 1999-10-29 | Seiko Epson Corp | Liquid crystal panel for projection type liquid crystal device and projection type liquid crystal device |
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