JPH0455315Y2 - - Google Patents
Info
- Publication number
- JPH0455315Y2 JPH0455315Y2 JP1987193471U JP19347187U JPH0455315Y2 JP H0455315 Y2 JPH0455315 Y2 JP H0455315Y2 JP 1987193471 U JP1987193471 U JP 1987193471U JP 19347187 U JP19347187 U JP 19347187U JP H0455315 Y2 JPH0455315 Y2 JP H0455315Y2
- Authority
- JP
- Japan
- Prior art keywords
- screen
- lens
- light
- total reflection
- rear projection
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 8
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005282 brightening Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987193471U JPH0455315Y2 (en]) | 1987-12-22 | 1987-12-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987193471U JPH0455315Y2 (en]) | 1987-12-22 | 1987-12-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0197328U JPH0197328U (en]) | 1989-06-28 |
| JPH0455315Y2 true JPH0455315Y2 (en]) | 1992-12-25 |
Family
ID=31484258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987193471U Expired JPH0455315Y2 (en]) | 1987-12-22 | 1987-12-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0455315Y2 (en]) |
-
1987
- 1987-12-22 JP JP1987193471U patent/JPH0455315Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0197328U (en]) | 1989-06-28 |
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