JPS6246443U - - Google Patents
Info
- Publication number
- JPS6246443U JPS6246443U JP13862385U JP13862385U JPS6246443U JP S6246443 U JPS6246443 U JP S6246443U JP 13862385 U JP13862385 U JP 13862385U JP 13862385 U JP13862385 U JP 13862385U JP S6246443 U JPS6246443 U JP S6246443U
- Authority
- JP
- Japan
- Prior art keywords
- illumination surface
- light
- light shielding
- shielding plates
- length
- 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
- 238000005286 illumination Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 description 2
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13862385U JPS6246443U (en]) | 1985-09-10 | 1985-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13862385U JPS6246443U (en]) | 1985-09-10 | 1985-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6246443U true JPS6246443U (en]) | 1987-03-20 |
Family
ID=31043780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13862385U Pending JPS6246443U (en]) | 1985-09-10 | 1985-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6246443U (en]) |
-
1985
- 1985-09-10 JP JP13862385U patent/JPS6246443U/ja active Pending
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