JPS63153246U - - Google Patents
Info
- Publication number
- JPS63153246U JPS63153246U JP1987046179U JP4617987U JPS63153246U JP S63153246 U JPS63153246 U JP S63153246U JP 1987046179 U JP1987046179 U JP 1987046179U JP 4617987 U JP4617987 U JP 4617987U JP S63153246 U JPS63153246 U JP S63153246U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- total reflection
- screen
- sides
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987046179U JPS63153246U (de) | 1987-03-28 | 1987-03-28 | |
US07/079,883 US4875064A (en) | 1986-08-06 | 1987-07-30 | Projector apparatus with mirror means |
US07/359,399 US4941732A (en) | 1986-08-06 | 1989-05-31 | Transmission type projection screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987046179U JPS63153246U (de) | 1987-03-28 | 1987-03-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63153246U true JPS63153246U (de) | 1988-10-07 |
Family
ID=30865602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987046179U Pending JPS63153246U (de) | 1986-08-06 | 1987-03-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63153246U (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02119640U (de) * | 1989-03-14 | 1990-09-26 |
-
1987
- 1987-03-28 JP JP1987046179U patent/JPS63153246U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02119640U (de) * | 1989-03-14 | 1990-09-26 |