JPH0469809U - - Google Patents
Info
- Publication number
- JPH0469809U JPH0469809U JP11291490U JP11291490U JPH0469809U JP H0469809 U JPH0469809 U JP H0469809U JP 11291490 U JP11291490 U JP 11291490U JP 11291490 U JP11291490 U JP 11291490U JP H0469809 U JPH0469809 U JP H0469809U
- Authority
- JP
- Japan
- Prior art keywords
- fresnel lens
- finished
- diffused
- outer slope
- diameter
- 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
- 230000004313 glare Effects 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 description 2
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11291490U JPH0469809U (enExample) | 1990-10-26 | 1990-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11291490U JPH0469809U (enExample) | 1990-10-26 | 1990-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0469809U true JPH0469809U (enExample) | 1992-06-19 |
Family
ID=31860443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11291490U Pending JPH0469809U (enExample) | 1990-10-26 | 1990-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0469809U (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012524287A (ja) * | 2009-04-17 | 2012-10-11 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | レンズ、レンズを有するオプトエレクトロニクス素子およびレンズの製造方法 |
-
1990
- 1990-10-26 JP JP11291490U patent/JPH0469809U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012524287A (ja) * | 2009-04-17 | 2012-10-11 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | レンズ、レンズを有するオプトエレクトロニクス素子およびレンズの製造方法 |