DE3803305C3 - Vorrichtung zum Erfassen der Scharfeinstellung eines Kameraobjektivs - Google Patents

Vorrichtung zum Erfassen der Scharfeinstellung eines Kameraobjektivs

Info

Publication number
DE3803305C3
DE3803305C3 DE19883803305 DE3803305A DE3803305C3 DE 3803305 C3 DE3803305 C3 DE 3803305C3 DE 19883803305 DE19883803305 DE 19883803305 DE 3803305 A DE3803305 A DE 3803305A DE 3803305 C3 DE3803305 C3 DE 3803305C3
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
Application number
DE19883803305
Other languages
German (de)
English (en)
Other versions
DE3803305A1 (de
DE3803305C2 (enrdf_load_stackoverflow
Inventor
Osamu Shindo
Shigeo Toji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to DE3844972A priority Critical patent/DE3844972C2/de
Priority to DE3844799A priority patent/DE3844799C2/de
Priority to DE3844971A priority patent/DE3844971C2/de
Priority claimed from DE3844799A external-priority patent/DE3844799C2/de
Publication of DE3803305A1 publication Critical patent/DE3803305A1/de
Application granted granted Critical
Publication of DE3803305C2 publication Critical patent/DE3803305C2/de
Publication of DE3803305C3 publication Critical patent/DE3803305C3/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
DE19883803305 1987-02-04 1988-02-04 Vorrichtung zum Erfassen der Scharfeinstellung eines Kameraobjektivs Expired - Fee Related DE3803305C3 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE3844972A DE3844972C2 (de) 1987-02-04 1988-02-04 Kamera mit einer Scharfeinstell-Erfassungsvorrichtung
DE3844799A DE3844799C2 (de) 1987-02-04 1988-02-04 Kamerasucher mit einer Einrichtung zum Erkennen der Blickrichtung
DE3844971A DE3844971C2 (de) 1987-02-04 1988-02-04 Kamera mit einem Sucher mit einer Einrichtung zur Blickrichtungserfassung

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 DE3803305C2 (enrdf_load_stackoverflow) 1993-09-23
DE3803305C3 true 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 (enrdf_load_stackoverflow)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
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
GB2222337B (en) * 1988-08-25 1992-12-16 Asahi Optical Co Ltd 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
DE69128681T2 (de) * 1990-10-01 1998-04-23 Nippon Kogaku Kk Fokusdetektor
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
DE19801910C2 (de) * 1998-01-20 2001-11-08 Rollei Fototechnic Gmbh Autofokussystem für Spiegelreflexkameras

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1412707A (enrdf_load_stackoverflow) * 1972-12-11 1975-11-05
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
DE3329603A1 (de) * 1982-09-29 1984-03-29 Veb Pentacon Dresden Kamera- Und Kinowerke, Ddr 8021 Dresden 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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1412707A (enrdf_load_stackoverflow) * 1972-12-11 1975-11-05
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
DE3329603A1 (de) * 1982-09-29 1984-03-29 Veb Pentacon Dresden Kamera- Und Kinowerke, Ddr 8021 Dresden 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Merchant, John, Fixation Point Measurement by the Oculometer Technique, Optical Engineering 1974, Vol. 13, No. 4, page 339-342 *

Also Published As

Publication number Publication date
DE3803305A1 (de) 1988-08-18
DE3803305C2 (enrdf_load_stackoverflow) 1993-09-23

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