DE3803305C2 - - Google Patents
Info
- Publication number
- DE3803305C2 DE3803305C2 DE19883803305 DE3803305A DE3803305C2 DE 3803305 C2 DE3803305 C2 DE 3803305C2 DE 19883803305 DE19883803305 DE 19883803305 DE 3803305 A DE3803305 A DE 3803305A DE 3803305 C2 DE3803305 C2 DE 3803305C2
- Authority
- DE
- Germany
- Prior art keywords
- lens
- image
- camera lens
- optical
- exit pupil
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/34—Systems for automatic generation of focusing signals using different areas in a pupil plane
- G02B7/346—Systems for automatic generation of focusing signals using different areas in a pupil plane using horizontal and vertical areas in the pupil plane, i.e. wide area autofocusing
-
- 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
- G03B2213/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B2213/02—Viewfinders
- G03B2213/025—Sightline detection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3844971A DE3844971C2 (de) | 1987-02-04 | 1988-02-04 | Kamera mit einem Sucher mit einer Einrichtung zur Blickrichtungserfassung |
DE3844799A DE3844799C2 (de) | 1987-02-04 | 1988-02-04 | Kamerasucher mit einer Einrichtung zum Erkennen der Blickrichtung |
DE3844972A DE3844972C2 (de) | 1987-02-04 | 1988-02-04 | Kamera mit einer Scharfeinstell-Erfassungsvorrichtung |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2256187 | 1987-02-04 | ||
JP14606787 | 1987-06-11 | ||
JP29375187 | 1987-11-20 | ||
JP30674687 | 1987-12-03 | ||
JP31933787 | 1987-12-17 | ||
DE3844799A DE3844799C2 (de) | 1987-02-04 | 1988-02-04 | Kamerasucher mit einer Einrichtung zum Erkennen der Blickrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
DE3803305A1 DE3803305A1 (de) | 1988-08-18 |
DE3803305C2 true DE3803305C2 (zh) | 1993-09-23 |
DE3803305C3 DE3803305C3 (de) | 1998-12-10 |
Family
ID=27544531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19883803305 Expired - Fee Related DE3803305C3 (de) | 1987-02-04 | 1988-02-04 | Vorrichtung zum Erfassen der Scharfeinstellung eines Kameraobjektivs |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3803305C3 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19801910A1 (de) * | 1998-01-20 | 1999-07-29 | Rollei Fototechnic Gmbh | Autofokussystem für Spiegelreflexkameras |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2526953B2 (ja) * | 1987-12-25 | 1996-08-21 | 株式会社ニコン | 焦点検出装置 |
US5017005A (en) * | 1988-03-18 | 1991-05-21 | Asahi Kogaku Kogyo Kabushiki Kaisha | Focal point detecting optical apparatus |
US4994843A (en) * | 1988-08-25 | 1991-02-19 | Asahi Kogaku Kogyo Kabushiki Kaisha | Focus indicating apparatus of automatic focusing camera |
DE4014887C2 (de) * | 1989-05-09 | 1995-11-23 | Asahi Optical Co Ltd | Entfernungsmessungseinrichtung |
DE3928549A1 (de) * | 1989-06-14 | 1990-12-20 | Gert Wagner | Autofocussystem fuer fotoapparate |
JP2893768B2 (ja) * | 1989-12-01 | 1999-05-24 | 株式会社ニコン | 焦点検出装置 |
JPH03198035A (ja) * | 1989-12-27 | 1991-08-29 | Seikosha Co Ltd | カメラ用測距装置 |
US5293194A (en) * | 1990-01-25 | 1994-03-08 | Canon Kabushiki Kaisha | Focus detection apparatus having an auxiliary light |
EP0653655B1 (en) * | 1990-01-25 | 1999-12-15 | Canon Kabushiki Kaisha | Focus adjusting apparatus |
EP0440171A1 (en) * | 1990-01-30 | 1991-08-07 | Canon Kabushiki Kaisha | Camera |
US5258803A (en) * | 1990-01-30 | 1993-11-02 | Canon Kabushiki Kaisha | Camera detecting focus to plural areas and deciding flash elimanation based on the plural areas |
US5189460A (en) * | 1990-01-30 | 1993-02-23 | Canon Kabushiki Kaisha | Camera detecting luminance from a plurality of areas |
JPH04267230A (ja) * | 1991-02-22 | 1992-09-22 | Canon Inc | 視線検出装置を有するカメラ |
EP0479550B1 (en) * | 1990-10-01 | 1998-01-14 | Nikon Corporation | Focus detection apparatus |
JP3108697B2 (ja) * | 1991-04-25 | 2000-11-13 | 旭光学工業株式会社 | 焦点検出装置 |
JP3199774B2 (ja) * | 1991-06-26 | 2001-08-20 | 旭光学工業株式会社 | 焦点検出装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3804496A (en) * | 1972-12-11 | 1974-04-16 | Stanford Research Inst | Two dimensional eye tracker and method for tracking an eye |
JPS5564218A (en) * | 1978-11-07 | 1980-05-14 | Olympus Optical Co Ltd | Focus detector |
JPS55118019A (en) * | 1979-03-05 | 1980-09-10 | Minolta Camera Co Ltd | Focusing point detector |
DE3331264A1 (de) * | 1982-08-30 | 1984-03-01 | Canon K.K., Tokyo | Schaerfeermittlungsvorrichtung |
DD210359A1 (de) * | 1982-09-29 | 1984-06-06 | Pentacon Dresden Veb | Anordnung zur automatischen scharfeinstellung fotografischer kameras |
US4636624A (en) * | 1983-01-10 | 1987-01-13 | Minolta Camera Kabushiki Kaisha | Focus detecting device for use with cameras |
-
1988
- 1988-02-04 DE DE19883803305 patent/DE3803305C3/de not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19801910A1 (de) * | 1998-01-20 | 1999-07-29 | Rollei Fototechnic Gmbh | Autofokussystem für Spiegelreflexkameras |
DE19801910C2 (de) * | 1998-01-20 | 2001-11-08 | Rollei Fototechnic Gmbh | Autofokussystem für Spiegelreflexkameras |
Also Published As
Publication number | Publication date |
---|---|
DE3803305C3 (de) | 1998-12-10 |
DE3803305A1 (de) | 1988-08-18 |
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Legal Events
Date | Code | Title | Description |
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8110 | Request for examination paragraph 44 | ||
8172 | Supplementary division/partition in: |
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8125 | Change of the main classification |
Ipc: G02B 7/34 |
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D2 | Grant after examination | ||
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8366 | Restricted maintained after opposition proceedings | ||
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8327 | Change in the person/name/address of the patent owner |
Owner name: PENTAX CORP., TOKIO/TOKYO, JP |
|
8339 | Ceased/non-payment of the annual fee |