FR2273296B1 - - Google Patents

Info

Publication number
FR2273296B1
FR2273296B1 FR7504090A FR7504090A FR2273296B1 FR 2273296 B1 FR2273296 B1 FR 2273296B1 FR 7504090 A FR7504090 A FR 7504090A FR 7504090 A FR7504090 A FR 7504090A FR 2273296 B1 FR2273296 B1 FR 2273296B1
Authority
FR
France
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
Application number
FR7504090A
Other versions
FR2273296A1 (fr
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.)
Balda Werke Photographische Gerate und Kunststof GmbH and Co KG
Original Assignee
Balda Werke Photographische Gerate und Kunststof GmbH and Co KG
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 Balda Werke Photographische Gerate und Kunststof GmbH and Co KG filed Critical Balda Werke Photographische Gerate und Kunststof GmbH and Co KG
Publication of FR2273296A1 publication Critical patent/FR2273296A1/fr
Application granted granted Critical
Publication of FR2273296B1 publication Critical patent/FR2273296B1/fr
Expired 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/14—Two separate members moving in opposite directions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
FR7504090A 1974-02-25 1975-02-10 Expired FR2273296B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2408932A DE2408932B2 (de) 1974-02-25 1974-02-25 KameraverschluB mit zwei hintereinander angeordneten in Längsrichtung geführten Lamellen

Publications (2)

Publication Number Publication Date
FR2273296A1 FR2273296A1 (fr) 1975-12-26
FR2273296B1 true FR2273296B1 (fr) 1977-04-15

Family

ID=5908377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7504090A Expired FR2273296B1 (fr) 1974-02-25 1975-02-10

Country Status (5)

Country Link
US (1) US3938168A (fr)
DE (1) DE2408932B2 (fr)
FR (1) FR2273296B1 (fr)
GB (1) GB1454669A (fr)
IT (1) IT1025413B (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527876A (en) * 1982-10-13 1985-07-09 Minolta Camera Kabushiki Kaisha Exposure control shutter of a camera
US4531820A (en) * 1983-06-22 1985-07-30 Polaroid Corporation Electromagnetic actuator generating equal and opposing force vectors
GB2164470B (en) * 1984-09-14 1988-10-26 Michael Rodney Browning Iris device
US4797700A (en) * 1985-06-28 1989-01-10 Canon Kabushiki Kaisha Diaphragm device
US4707099A (en) * 1986-11-19 1987-11-17 Eastman Kodak Company Latch mechanism for camera shutter
US4884091A (en) * 1987-10-08 1989-11-28 Nippon Seimitsu Kogyo Kabushiki Kaisha Exposure control device in a camera
JP2531765Y2 (ja) 1987-11-10 1997-04-09 ニスカ 株式会社 絞り装置
JP2531764Y2 (ja) 1987-11-10 1997-04-09 ニスカ 株式会社 カメラ用光量絞り装置
JPH0712974Y2 (ja) * 1987-11-10 1995-03-29 ニスカ株式会社 絞り装置
JP2525680Y2 (ja) 1987-11-19 1997-02-12 ニスカ 株式会社 カメラ用光量絞り装置
US4894683A (en) * 1988-12-05 1990-01-16 Eastman Kodak Company Variable brightness light generators
US4922089A (en) * 1988-12-05 1990-05-01 Eastman Kodak Company Constant color temperature and intensity illumination source
US8474721B2 (en) 2007-06-11 2013-07-02 Drs Rsta, Inc. Variable aperture and actuator assemblies for an imaging system
US7724412B2 (en) * 2007-06-11 2010-05-25 Drs Rsta, Inc. Variable aperture and actuator assemblies for an imaging system
US9285653B2 (en) 2012-11-06 2016-03-15 Raytheon Company Variable aperture mechanism for creating different aperture sizes in cameras and other imaging devices
US9323130B2 (en) 2013-06-11 2016-04-26 Raytheon Company Thermal control in variable aperture mechanism for cryogenic environment
US9228645B2 (en) 2013-06-11 2016-01-05 Raytheon Company Vacuum stable mechanism drive arm
US9448462B2 (en) 2013-06-11 2016-09-20 Raytheon Company Pulse width modulation control of solenoid motor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US674525A (en) * 1899-09-07 1901-05-21 Gundlach Optical Company Photographic shutter.
US1032297A (en) * 1908-12-22 1912-07-09 Jules Richard Photographic shutter.
US3769893A (en) * 1972-04-21 1973-11-06 Polaroid Corp Electromagnetically actuated exposure control mechanism
JPS5424650B2 (fr) * 1972-05-30 1979-08-22

Also Published As

Publication number Publication date
FR2273296A1 (fr) 1975-12-26
GB1454669A (en) 1976-11-03
DE2408932A1 (de) 1975-09-04
IT1025413B (it) 1978-08-10
US3938168A (en) 1976-02-10
DE2408932B2 (de) 1976-01-02

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Legal Events

Date Code Title Description
ST Notification of lapse