JPS6113725B2 - - Google Patents
Info
- Publication number
- JPS6113725B2 JPS6113725B2 JP53013607A JP1360778A JPS6113725B2 JP S6113725 B2 JPS6113725 B2 JP S6113725B2 JP 53013607 A JP53013607 A JP 53013607A JP 1360778 A JP1360778 A JP 1360778A JP S6113725 B2 JPS6113725 B2 JP S6113725B2
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- light
- receiving element
- movable mirror
- section
- 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
- 230000011514 reflex Effects 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims 2
- 241000446313 Lamella Species 0.000 claims 1
- 239000011521 glass Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000004075 alteration Effects 0.000 description 2
- 238000005375 photometry Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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
-
- 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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/099—Arrangement of photoelectric elements in or on the camera
- G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
- G03B7/0997—Through the lens [TTL] measuring
- G03B7/09971—Through the lens [TTL] measuring in mirror-reflex cameras
- G03B7/09973—Through the lens [TTL] measuring in mirror-reflex cameras using the mirror as sensor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cameras In General (AREA)
- Focusing (AREA)
- Lenses (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1360778A JPS54107338A (en) | 1978-02-10 | 1978-02-10 | Focusing device of single-lens reflex camera |
| US06/008,689 US4252424A (en) | 1978-02-10 | 1979-01-30 | Focusing optical system for single-lens reflex cameras |
| DE19797902537U DE7902537U1 (de) | 1978-02-10 | 1979-01-31 | Optisches fokussierungssystem fuer eine einaeugige spiegelreflexkamera |
| DE2903527A DE2903527C3 (de) | 1978-02-10 | 1979-01-31 | Optisches Fokussierungssystem für eine einäugige Spiegelreflexkamera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1360778A JPS54107338A (en) | 1978-02-10 | 1978-02-10 | Focusing device of single-lens reflex camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54107338A JPS54107338A (en) | 1979-08-23 |
| JPS6113725B2 true JPS6113725B2 (enExample) | 1986-04-15 |
Family
ID=11837910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1360778A Granted JPS54107338A (en) | 1978-02-10 | 1978-02-10 | Focusing device of single-lens reflex camera |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4252424A (enExample) |
| JP (1) | JPS54107338A (enExample) |
| DE (2) | DE2903527C3 (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912500A (en) * | 1985-09-21 | 1990-03-27 | Canon Kabushiki Kaisha | Single lens reflex camera |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3779146A (en) * | 1970-05-27 | 1973-12-18 | Pentacon Dresden Veb | Reflex photographic cameras |
| DE2031155A1 (de) * | 1970-06-24 | 1972-01-27 | Zeiss Ikon Ag, 7000 Stuttgart | Belichtungsmeßeinnchtung für Spiegelreflexkameras |
-
1978
- 1978-02-10 JP JP1360778A patent/JPS54107338A/ja active Granted
-
1979
- 1979-01-30 US US06/008,689 patent/US4252424A/en not_active Expired - Lifetime
- 1979-01-31 DE DE2903527A patent/DE2903527C3/de not_active Expired
- 1979-01-31 DE DE19797902537U patent/DE7902537U1/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2903527B2 (de) | 1980-03-20 |
| DE2903527C3 (de) | 1980-11-20 |
| JPS54107338A (en) | 1979-08-23 |
| US4252424A (en) | 1981-02-24 |
| DE7902537U1 (de) | 1981-03-12 |
| DE2903527A1 (de) | 1979-08-16 |
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