JPH0290881U - - Google Patents
Info
- Publication number
- JPH0290881U JPH0290881U JP16985888U JP16985888U JPH0290881U JP H0290881 U JPH0290881 U JP H0290881U JP 16985888 U JP16985888 U JP 16985888U JP 16985888 U JP16985888 U JP 16985888U JP H0290881 U JPH0290881 U JP H0290881U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- projector
- projection optical
- showing
- liquid
- 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
- 239000007788 liquid Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 2
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図は本考案のプロジエクタの一実施例を示
す投射光学系の模式図、第２図は本考案の一実施
例を示すプロジエクタの一部を断面とする側面図
、第３図は本考案のプロジエクタの一実施例を示
す正面図、第４図は本考案のプロジエクタの他の
実施例を示す投射光学系の一部側断面図、第５図
は従来の液晶プロジエクタの光学系を示す模式図
である。
１１は液体、１２は光源部、１３は投射部、１
４は光源、１７，１８はフイルタ、２０，２１は
コンデンサレンズ、２２は液晶パネル、２３は凸
レンズ、３７はスライドである。
Fig. 1 is a schematic diagram of a projection optical system showing an embodiment of the projector of the present invention, Fig. 2 is a side view showing a partial cross-section of the projector showing an embodiment of the invention, and Fig. 3 is a schematic diagram of a projection optical system showing an embodiment of the projector of the present invention. 4 is a partial side sectional view of a projection optical system showing another embodiment of the projector of the present invention, and FIG. 5 is a schematic diagram showing the optical system of a conventional liquid crystal projector. It is a diagram. 11 is a liquid, 12 is a light source section, 13 is a projection section, 1
4 is a light source, 17 and 18 are filters, 20 and 21 are condenser lenses, 22 is a liquid crystal panel, 23 is a convex lens, and 37 is a slide.
Claims (1)
を有する液体を満たしてなることを特徴とするプ
ロジエクタ。 A projector characterized in that a projection optical system element is filled with a liquid having a refractive index close to that of glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16985888U JPH0290881U (en) | 1988-12-29 | 1988-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16985888U JPH0290881U (en) | 1988-12-29 | 1988-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0290881U true JPH0290881U (en) | 1990-07-18 |
Family
ID=31460290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16985888U Pending JPH0290881U (en) | 1988-12-29 | 1988-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0290881U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08114716A (en) * | 1994-10-14 | 1996-05-07 | Matsushita Electric Ind Co Ltd | Picture display device |
| WO1998059278A1 (en) * | 1997-06-20 | 1998-12-30 | Hitachi, Ltd. | Display and display optical system |
| JP2002116503A (en) * | 2000-10-06 | 2002-04-19 | Seiko Epson Corp | Projector |
| JP2006323420A (en) * | 2006-08-28 | 2006-11-30 | Hitachi Ltd | Optical system for projection |
-
1988
- 1988-12-29 JP JP16985888U patent/JPH0290881U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08114716A (en) * | 1994-10-14 | 1996-05-07 | Matsushita Electric Ind Co Ltd | Picture display device |
| WO1998059278A1 (en) * | 1997-06-20 | 1998-12-30 | Hitachi, Ltd. | Display and display optical system |
| JP2002116503A (en) * | 2000-10-06 | 2002-04-19 | Seiko Epson Corp | Projector |
| JP2006323420A (en) * | 2006-08-28 | 2006-11-30 | Hitachi Ltd | Optical system for projection |