JPS63170833U - - Google Patents
Info
- Publication number
- JPS63170833U JPS63170833U JP1987063175U JP6317587U JPS63170833U JP S63170833 U JPS63170833 U JP S63170833U JP 1987063175 U JP1987063175 U JP 1987063175U JP 6317587 U JP6317587 U JP 6317587U JP S63170833 U JPS63170833 U JP S63170833U
- Authority
- JP
- Japan
- Prior art keywords
- projector
- fresnel lens
- screen
- light emitting
- emitting section
- 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
- 230000005540 biological transmission Effects 0.000 claims description 3
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987063175U JPH0522930Y2 (enExample) | 1987-04-24 | 1987-04-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987063175U JPH0522930Y2 (enExample) | 1987-04-24 | 1987-04-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63170833U true JPS63170833U (enExample) | 1988-11-07 |
| JPH0522930Y2 JPH0522930Y2 (enExample) | 1993-06-11 |
Family
ID=30898158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987063175U Expired - Lifetime JPH0522930Y2 (enExample) | 1987-04-24 | 1987-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0522930Y2 (enExample) |
-
1987
- 1987-04-24 JP JP1987063175U patent/JPH0522930Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0522930Y2 (enExample) | 1993-06-11 |