JPH0244732U - - Google Patents
Info
- Publication number
- JPH0244732U JPH0244732U JP1988123740U JP12374088U JPH0244732U JP H0244732 U JPH0244732 U JP H0244732U JP 1988123740 U JP1988123740 U JP 1988123740U JP 12374088 U JP12374088 U JP 12374088U JP H0244732 U JPH0244732 U JP H0244732U
- Authority
- JP
- Japan
- Prior art keywords
- absorbing layer
- external light
- light absorbing
- layer
- screen
- 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
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988123740U JPH0244732U (fr) | 1988-09-21 | 1988-09-21 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988123740U JPH0244732U (fr) | 1988-09-21 | 1988-09-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0244732U true JPH0244732U (fr) | 1990-03-28 |
Family
ID=31372871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988123740U Pending JPH0244732U (fr) | 1988-09-21 | 1988-09-21 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0244732U (fr) |
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1988
- 1988-09-21 JP JP1988123740U patent/JPH0244732U/ja active Pending