JPH0162539U - - Google Patents
Info
- Publication number
- JPH0162539U JPH0162539U JP1987158027U JP15802787U JPH0162539U JP H0162539 U JPH0162539 U JP H0162539U JP 1987158027 U JP1987158027 U JP 1987158027U JP 15802787 U JP15802787 U JP 15802787U JP H0162539 U JPH0162539 U JP H0162539U
- Authority
- JP
- Japan
- Prior art keywords
- groove
- lenticular lens
- concentrating part
- external light
- absorption layer
- 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
- 230000031700 light absorption Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987158027U JPH0162539U (sl) | 1987-10-15 | 1987-10-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987158027U JPH0162539U (sl) | 1987-10-15 | 1987-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0162539U true JPH0162539U (sl) | 1989-04-21 |
Family
ID=31437986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987158027U Pending JPH0162539U (sl) | 1987-10-15 | 1987-10-15 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0162539U (sl) |
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1987
- 1987-10-15 JP JP1987158027U patent/JPH0162539U/ja active Pending