JPS57128326A - Finder optical system - Google Patents
Finder optical systemInfo
- Publication number
- JPS57128326A JPS57128326A JP56012224A JP1222481A JPS57128326A JP S57128326 A JPS57128326 A JP S57128326A JP 56012224 A JP56012224 A JP 56012224A JP 1222481 A JP1222481 A JP 1222481A JP S57128326 A JPS57128326 A JP S57128326A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- mask
- optical system
- finder optical
- field
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B19/00—Cameras
- G03B19/02—Still-picture cameras
- G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56012224A JPS57128326A (en) | 1981-01-31 | 1981-01-31 | Finder optical system |
GB8201446A GB2092327B (en) | 1981-01-31 | 1982-01-19 | Finder optical system |
US06/343,363 US4492440A (en) | 1981-01-31 | 1982-01-27 | Finder optical system |
DE19823202778 DE3202778A1 (de) | 1981-01-31 | 1982-01-28 | Optischer sucher mit feldlinse, bildfeldmaske und okular |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56012224A JPS57128326A (en) | 1981-01-31 | 1981-01-31 | Finder optical system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57128326A true JPS57128326A (en) | 1982-08-09 |
Family
ID=11799398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56012224A Pending JPS57128326A (en) | 1981-01-31 | 1981-01-31 | Finder optical system |
Country Status (4)
Country | Link |
---|---|
US (1) | US4492440A (ja) |
JP (1) | JPS57128326A (ja) |
DE (1) | DE3202778A1 (ja) |
GB (1) | GB2092327B (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5581404A (en) * | 1992-01-10 | 1996-12-03 | Canon Kabushiki Kaisha | Image stabilizing apparatus |
FR2700623B1 (fr) * | 1993-01-18 | 1996-05-24 | Asahi Optical Co Ltd | Viseur du type à image réelle. |
US5548444A (en) * | 1994-07-06 | 1996-08-20 | Hughes Danbury Optical Systems, Inc. | Optical beam homogenizing apparatus and method |
CN102884367B (zh) * | 2010-06-10 | 2015-01-28 | 奥林巴斯医疗株式会社 | 光源装置及内窥镜系统 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5588041A (en) * | 1978-12-26 | 1980-07-03 | Canon Inc | Finder of single-lens reflex camera |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA680381A (en) * | 1964-02-18 | J. Lescher Edmund | High speed optical system for telescopes | |
US1712112A (en) * | 1925-12-14 | 1929-05-07 | Keuffel & Esser Co | Eyepiece for optical instruments |
US2837969A (en) * | 1956-10-15 | 1958-06-10 | American Optical Corp | Telescope and microscope eyepiece system |
GB1010226A (en) * | 1961-10-07 | 1965-11-17 | Rollei Werke Franke Heidecke | Improvements in or relating to photographic cameras |
US4286844A (en) * | 1979-11-07 | 1981-09-01 | Albert Nagler | Ultrawide angle flat field eyepiece |
-
1981
- 1981-01-31 JP JP56012224A patent/JPS57128326A/ja active Pending
-
1982
- 1982-01-19 GB GB8201446A patent/GB2092327B/en not_active Expired
- 1982-01-27 US US06/343,363 patent/US4492440A/en not_active Expired - Lifetime
- 1982-01-28 DE DE19823202778 patent/DE3202778A1/de not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5588041A (en) * | 1978-12-26 | 1980-07-03 | Canon Inc | Finder of single-lens reflex camera |
Also Published As
Publication number | Publication date |
---|---|
US4492440A (en) | 1985-01-08 |
GB2092327A (en) | 1982-08-11 |
GB2092327B (en) | 1985-03-06 |
DE3202778A1 (de) | 1982-10-07 |
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