FR2710165B1 - Viewer with real image in particular for photographic cameras. - Google Patents

Viewer with real image in particular for photographic cameras.

Info

Publication number
FR2710165B1
FR2710165B1 FR9412802A FR9412802A FR2710165B1 FR 2710165 B1 FR2710165 B1 FR 2710165B1 FR 9412802 A FR9412802 A FR 9412802A FR 9412802 A FR9412802 A FR 9412802A FR 2710165 B1 FR2710165 B1 FR 2710165B1
Authority
FR
France
Prior art keywords
viewer
real image
photographic cameras
photographic
cameras
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
FR9412802A
Other languages
French (fr)
Other versions
FR2710165A1 (en
Inventor
Tetsuya Abe
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
Priority claimed from JP2033011A external-priority patent/JP2881744B2/en
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to FR9412802A priority Critical patent/FR2710165B1/en
Publication of FR2710165A1 publication Critical patent/FR2710165A1/en
Application granted granted Critical
Publication of FR2710165B1 publication Critical patent/FR2710165B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/02—Viewfinders
    • G03B13/06—Viewfinders with lenses with or without reflectors
    • 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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/02—Viewfinders
    • G03B13/10—Viewfinders adjusting viewfinders field
    • G03B13/12—Viewfinders adjusting viewfinders field to compensate for change of camera lens or size of picture
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/14—Viewfinders
    • G02B23/145—Zoom viewfinders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)
FR9412802A 1990-02-14 1994-10-26 Viewer with real image in particular for photographic cameras. Expired - Fee Related FR2710165B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9412802A FR2710165B1 (en) 1990-02-14 1994-10-26 Viewer with real image in particular for photographic cameras.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2033011A JP2881744B2 (en) 1990-02-14 1990-02-14 Real image finder
FR9101460A FR2658312A1 (en) 1990-02-14 1991-02-08 SENSOR WITH REAL IMAGE, PARTICULARLY FOR PHOTOGRAPHIC APPARATUS.
FR9412802A FR2710165B1 (en) 1990-02-14 1994-10-26 Viewer with real image in particular for photographic cameras.

Publications (2)

Publication Number Publication Date
FR2710165A1 FR2710165A1 (en) 1995-03-24
FR2710165B1 true FR2710165B1 (en) 1996-08-23

Family

ID=27252399

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9412802A Expired - Fee Related FR2710165B1 (en) 1990-02-14 1994-10-26 Viewer with real image in particular for photographic cameras.

Country Status (1)

Country Link
FR (1) FR2710165B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637690A (en) * 1981-04-06 1987-01-20 Konishiroku Photo Industry Co., Ltd. Telecentric zoom lens system
JPS5952213A (en) * 1982-09-18 1984-03-26 Canon Inc Zoom lens with movable diaphragm
US4751539A (en) * 1986-08-12 1988-06-14 Canon Kabushiki Kaisha Variable power finder
US4909614A (en) * 1987-11-13 1990-03-20 Canon Kabushiki Kaisha Variable magnification finder
JPH1129225A (en) * 1997-07-10 1999-02-02 Canon Inc Sheet feeding device and image forming device

Also Published As

Publication number Publication date
FR2710165A1 (en) 1995-03-24

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20051031