JPS6451928U - - Google Patents
Info
- Publication number
- JPS6451928U JPS6451928U JP14894687U JP14894687U JPS6451928U JP S6451928 U JPS6451928 U JP S6451928U JP 14894687 U JP14894687 U JP 14894687U JP 14894687 U JP14894687 U JP 14894687U JP S6451928 U JPS6451928 U JP S6451928U
- Authority
- JP
- Japan
- Prior art keywords
- plate
- light
- overhead projector
- reflection
- fresnel lens
- 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
- 230000002441 reversible effect Effects 0.000 claims 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14894687U JPS6451928U (no) | 1987-09-28 | 1987-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14894687U JPS6451928U (no) | 1987-09-28 | 1987-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6451928U true JPS6451928U (no) | 1989-03-30 |
Family
ID=31420722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14894687U Pending JPS6451928U (no) | 1987-09-28 | 1987-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6451928U (no) |
-
1987
- 1987-09-28 JP JP14894687U patent/JPS6451928U/ja active Pending