JPH0329801U - - Google Patents
Info
- Publication number
- JPH0329801U JPH0329801U JP8806289U JP8806289U JPH0329801U JP H0329801 U JPH0329801 U JP H0329801U JP 8806289 U JP8806289 U JP 8806289U JP 8806289 U JP8806289 U JP 8806289U JP H0329801 U JPH0329801 U JP H0329801U
- Authority
- JP
- Japan
- Prior art keywords
- fresnel lens
- reflective surface
- constructed
- utility
- forming
- 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
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Optical Elements Other Than Lenses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8806289U JPH0329801U (enEXAMPLES) | 1989-07-28 | 1989-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8806289U JPH0329801U (enEXAMPLES) | 1989-07-28 | 1989-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0329801U true JPH0329801U (enEXAMPLES) | 1991-03-25 |
Family
ID=31637695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8806289U Pending JPH0329801U (enEXAMPLES) | 1989-07-28 | 1989-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0329801U (enEXAMPLES) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6024501A (ja) * | 1983-07-20 | 1985-02-07 | Mitsubishi Electric Corp | 反射板の製造方法 |
| JPS61248001A (ja) * | 1985-04-26 | 1986-11-05 | Toshiba Corp | グレ−デイングレンズ |
-
1989
- 1989-07-28 JP JP8806289U patent/JPH0329801U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6024501A (ja) * | 1983-07-20 | 1985-02-07 | Mitsubishi Electric Corp | 反射板の製造方法 |
| JPS61248001A (ja) * | 1985-04-26 | 1986-11-05 | Toshiba Corp | グレ−デイングレンズ |