JPS6232763B2 - - Google Patents
Info
- Publication number
- JPS6232763B2 JPS6232763B2 JP54072904A JP7290479A JPS6232763B2 JP S6232763 B2 JPS6232763 B2 JP S6232763B2 JP 54072904 A JP54072904 A JP 54072904A JP 7290479 A JP7290479 A JP 7290479A JP S6232763 B2 JPS6232763 B2 JP S6232763B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- group
- single lens
- surface facing
- convex surface
- 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.)
- Expired
Links
- 230000005499 meniscus Effects 0.000 claims description 12
- 230000004075 alteration Effects 0.000 description 8
- 206010010071 Coma Diseases 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Landscapes
- Lenses (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7290479A JPS55164805A (en) | 1979-06-08 | 1979-06-08 | Reverse telephoto type wide-angle lens |
US06/151,445 US4382662A (en) | 1979-06-08 | 1980-05-19 | Inverted telephoto type wide angle lens system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7290479A JPS55164805A (en) | 1979-06-08 | 1979-06-08 | Reverse telephoto type wide-angle lens |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55164805A JPS55164805A (en) | 1980-12-22 |
JPS6232763B2 true JPS6232763B2 (bg) | 1987-07-16 |
Family
ID=13502794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7290479A Granted JPS55164805A (en) | 1979-06-08 | 1979-06-08 | Reverse telephoto type wide-angle lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55164805A (bg) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4934797A (en) * | 1988-09-30 | 1990-06-19 | Asahi Kogaku Kogyo Kabushiki Kaisha | Wide-angle lens system of a retrofocus type |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4912822A (bg) * | 1972-05-10 | 1974-02-04 | ||
JPS5339759A (en) * | 1976-09-22 | 1978-04-11 | Asahi Optical Co Ltd | Small sized bright wide zoom lens |
JPS53135658A (en) * | 1977-04-30 | 1978-11-27 | Asahi Optical Co Ltd | Zoom lens including ultraawide lens |
JPS5415733A (en) * | 1977-06-10 | 1979-02-05 | Asahi Optical Co Ltd | Lowwmagnification variableeangleelens system |
-
1979
- 1979-06-08 JP JP7290479A patent/JPS55164805A/ja active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4912822A (bg) * | 1972-05-10 | 1974-02-04 | ||
JPS5339759A (en) * | 1976-09-22 | 1978-04-11 | Asahi Optical Co Ltd | Small sized bright wide zoom lens |
JPS53135658A (en) * | 1977-04-30 | 1978-11-27 | Asahi Optical Co Ltd | Zoom lens including ultraawide lens |
JPS5415733A (en) * | 1977-06-10 | 1979-02-05 | Asahi Optical Co Ltd | Lowwmagnification variableeangleelens system |
Also Published As
Publication number | Publication date |
---|---|
JPS55164805A (en) | 1980-12-22 |
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