JPS5438921Y2 - - Google Patents
Info
- Publication number
- JPS5438921Y2 JPS5438921Y2 JP1972079699U JP7969972U JPS5438921Y2 JP S5438921 Y2 JPS5438921 Y2 JP S5438921Y2 JP 1972079699 U JP1972079699 U JP 1972079699U JP 7969972 U JP7969972 U JP 7969972U JP S5438921 Y2 JPS5438921 Y2 JP S5438921Y2
- 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.)
- Expired
Links
Landscapes
- Microscoopes, Condenser (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1972079699U JPS5438921Y2 (en) | 1972-07-07 | 1972-07-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1972079699U JPS5438921Y2 (en) | 1972-07-07 | 1972-07-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS4939437U JPS4939437U (en) | 1974-04-06 |
JPS5438921Y2 true JPS5438921Y2 (en) | 1979-11-19 |
Family
ID=27984915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1972079699U Expired JPS5438921Y2 (en) | 1972-07-07 | 1972-07-07 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5438921Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0731306B2 (en) * | 1987-07-31 | 1995-04-10 | 大日本スクリ−ン製造株式会社 | Lighting lens |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3609012A (en) * | 1969-10-06 | 1971-09-28 | Spindler & Sauppe Inc | Optical condensing system with variable effective focal length |
-
1972
- 1972-07-07 JP JP1972079699U patent/JPS5438921Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3609012A (en) * | 1969-10-06 | 1971-09-28 | Spindler & Sauppe Inc | Optical condensing system with variable effective focal length |
Also Published As
Publication number | Publication date |
---|---|
JPS4939437U (en) | 1974-04-06 |