JPH041537U - - Google Patents
Info
- Publication number
- JPH041537U JPH041537U JP4201890U JP4201890U JPH041537U JP H041537 U JPH041537 U JP H041537U JP 4201890 U JP4201890 U JP 4201890U JP 4201890 U JP4201890 U JP 4201890U JP H041537 U JPH041537 U JP H041537U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- overhead projector
- reflecting mirror
- light
- 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
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4201890U JPH041537U (sh) | 1990-04-19 | 1990-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4201890U JPH041537U (sh) | 1990-04-19 | 1990-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH041537U true JPH041537U (sh) | 1992-01-08 |
Family
ID=31553192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4201890U Pending JPH041537U (sh) | 1990-04-19 | 1990-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH041537U (sh) |
-
1990
- 1990-04-19 JP JP4201890U patent/JPH041537U/ja active Pending