JPH01152331U - - Google Patents
Info
- Publication number
- JPH01152331U JPH01152331U JP1987192619U JP19261987U JPH01152331U JP H01152331 U JPH01152331 U JP H01152331U JP 1987192619 U JP1987192619 U JP 1987192619U JP 19261987 U JP19261987 U JP 19261987U JP H01152331 U JPH01152331 U JP H01152331U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- sides
- convex lens
- screen
- total reflection
- 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 1
- 238000010586 diagram Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10181487 | 1987-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01152331U true JPH01152331U (cs) | 1989-10-20 |
Family
ID=33446830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987192619U Pending JPH01152331U (cs) | 1987-07-03 | 1987-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01152331U (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003504657A (ja) * | 1999-07-02 | 2003-02-04 | トムソン ライセンシング ソシエテ アノニム | テレビジョン用の投写型スクリーン |
-
1987
- 1987-12-18 JP JP1987192619U patent/JPH01152331U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003504657A (ja) * | 1999-07-02 | 2003-02-04 | トムソン ライセンシング ソシエテ アノニム | テレビジョン用の投写型スクリーン |
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