JPS63187139U - - Google Patents
Info
- Publication number
- JPS63187139U JPS63187139U JP1987074492U JP7449287U JPS63187139U JP S63187139 U JPS63187139 U JP S63187139U JP 1987074492 U JP1987074492 U JP 1987074492U JP 7449287 U JP7449287 U JP 7449287U JP S63187139 U JPS63187139 U JP S63187139U
- Authority
- JP
- Japan
- Prior art keywords
- lens sheet
- lens
- diffusion layer
- sheet according
- light diffusion
- 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.)
- Granted
Links
- 238000009792 diffusion process Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000003973 paint Substances 0.000 claims 1
- 238000007788 roughening Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987074492U JPH0614218Y2 (ja) | 1987-05-19 | 1987-05-19 | レンズシ−ト |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987074492U JPH0614218Y2 (ja) | 1987-05-19 | 1987-05-19 | レンズシ−ト |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63187139U true JPS63187139U (US08197722-20120612-C00042.png) | 1988-11-30 |
| JPH0614218Y2 JPH0614218Y2 (ja) | 1994-04-13 |
Family
ID=30919752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987074492U Expired - Lifetime JPH0614218Y2 (ja) | 1987-05-19 | 1987-05-19 | レンズシ−ト |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0614218Y2 (US08197722-20120612-C00042.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004264328A (ja) * | 2003-01-22 | 2004-09-24 | Dainippon Printing Co Ltd | フレネルレンズシートおよび背面投射型スクリーン |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578535A (en) * | 1980-06-19 | 1982-01-16 | Sony Corp | Transmission type screen |
| JPS58184939A (ja) * | 1982-04-23 | 1983-10-28 | Dainippon Printing Co Ltd | レンズシ−ト |
-
1987
- 1987-05-19 JP JP1987074492U patent/JPH0614218Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578535A (en) * | 1980-06-19 | 1982-01-16 | Sony Corp | Transmission type screen |
| JPS58184939A (ja) * | 1982-04-23 | 1983-10-28 | Dainippon Printing Co Ltd | レンズシ−ト |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0614218Y2 (ja) | 1994-04-13 |
