JPH02134528U - - Google Patents
Info
- Publication number
- JPH02134528U JPH02134528U JP1989043186U JP4318689U JPH02134528U JP H02134528 U JPH02134528 U JP H02134528U JP 1989043186 U JP1989043186 U JP 1989043186U JP 4318689 U JP4318689 U JP 4318689U JP H02134528 U JPH02134528 U JP H02134528U
- Authority
- JP
- Japan
- Prior art keywords
- fresnel lens
- lens
- material forming
- lenticular lens
- refractive index
- 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 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989043186U JPH02134528U (sv) | 1989-04-13 | 1989-04-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989043186U JPH02134528U (sv) | 1989-04-13 | 1989-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02134528U true JPH02134528U (sv) | 1990-11-08 |
Family
ID=31555388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1989043186U Pending JPH02134528U (sv) | 1989-04-13 | 1989-04-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02134528U (sv) |
-
1989
- 1989-04-13 JP JP1989043186U patent/JPH02134528U/ja active Pending