JPS4819257B1 - - Google Patents
Info
- Publication number
- JPS4819257B1 JPS4819257B1 JP45027348A JP2734870A JPS4819257B1 JP S4819257 B1 JPS4819257 B1 JP S4819257B1 JP 45027348 A JP45027348 A JP 45027348A JP 2734870 A JP2734870 A JP 2734870A JP S4819257 B1 JPS4819257 B1 JP S4819257B1
- Authority
- JP
- Japan
- 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
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Optical Elements Other Than Lenses (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82323369A | 1969-04-02 | 1969-04-02 | |
| US83830469A | 1969-07-01 | 1969-07-01 | |
| US83871669A | 1969-07-02 | 1969-07-02 | |
| US83852869A | 1969-07-02 | 1969-07-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4819257B1 true JPS4819257B1 (ja) | 1973-06-12 |
Family
ID=27505865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP45027348A Pending JPS4819257B1 (ja) | 1969-04-02 | 1970-04-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4819257B1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52114447U (ja) * | 1976-02-27 | 1977-08-31 | ||
| WO2007119592A1 (ja) * | 2006-03-30 | 2007-10-25 | Ube Industries, Ltd. | 光フィルター |
| JP2008046421A (ja) * | 2006-08-17 | 2008-02-28 | Ube Ind Ltd | 光学スクリーンおよびプロジェクション式画像表示システム |
-
1970
- 1970-04-01 JP JP45027348A patent/JPS4819257B1/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52114447U (ja) * | 1976-02-27 | 1977-08-31 | ||
| WO2007119592A1 (ja) * | 2006-03-30 | 2007-10-25 | Ube Industries, Ltd. | 光フィルター |
| US8035777B2 (en) | 2006-03-30 | 2011-10-11 | Ube Industries, Ltd. | Optical filter |
| JP5146313B2 (ja) * | 2006-03-30 | 2013-02-20 | 宇部興産株式会社 | 光フィルター |
| JP2008046421A (ja) * | 2006-08-17 | 2008-02-28 | Ube Ind Ltd | 光学スクリーンおよびプロジェクション式画像表示システム |