GB8521023D0 - Iris device - Google Patents

Iris device

Info

Publication number
GB8521023D0
GB8521023D0 GB858521023A GB8521023A GB8521023D0 GB 8521023 D0 GB8521023 D0 GB 8521023D0 GB 858521023 A GB858521023 A GB 858521023A GB 8521023 A GB8521023 A GB 8521023A GB 8521023 D0 GB8521023 D0 GB 8521023D0
Authority
GB
United Kingdom
Prior art keywords
iris device
iris
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.)
Granted
Application number
GB858521023A
Other versions
GB2164470A (en
GB2164470B (en
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.)
Mol V E
Original Assignee
Mol V E
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 Mol V E filed Critical Mol V E
Publication of GB8521023D0 publication Critical patent/GB8521023D0/en
Publication of GB2164470A publication Critical patent/GB2164470A/en
Application granted granted Critical
Publication of GB2164470B publication Critical patent/GB2164470B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/23—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using wavelength separation, e.g. using anaglyph techniques
    • 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
    • G03B9/02—Diaphragms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Diaphragms For Cameras (AREA)
GB08521023A 1984-09-14 1985-08-22 Iris device Expired GB2164470B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPG713684 1984-09-14
CA463648 1984-09-19

Publications (3)

Publication Number Publication Date
GB8521023D0 true GB8521023D0 (en) 1985-09-25
GB2164470A GB2164470A (en) 1986-03-19
GB2164470B GB2164470B (en) 1988-10-26

Family

ID=25642847

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08521023A Expired GB2164470B (en) 1984-09-14 1985-08-22 Iris device

Country Status (3)

Country Link
JP (1) JPS61179427A (en)
DE (1) DE3531983A1 (en)
GB (1) GB2164470B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904055A (en) * 1988-10-03 1990-02-27 Eastman Kodak Company Variable aperture formed by linearly movable elements
US4894683A (en) * 1988-12-05 1990-01-16 Eastman Kodak Company Variable brightness light generators
JP2535031Y2 (en) * 1989-02-09 1997-05-07 旭光学工業株式会社 Lens shading frame
GB2230354B (en) * 1989-03-31 1993-09-15 Asahi Optical Co Ltd Zoom lens assembly
GB2238393B (en) * 1989-11-09 1994-06-01 Asahi Optical Co Ltd Lens barrel shield
JP2520481Y2 (en) * 1990-03-23 1996-12-18 株式会社ガスター Combustion equipment with automatic notification function
GB9201156D0 (en) * 1992-01-20 1992-03-11 British Broadcasting Corp Television camera iris
DE4240734C1 (en) * 1992-12-03 1994-03-31 Computer Ges Konstanz Lens hood
US5614973A (en) * 1993-11-30 1997-03-25 Asahi Kogaku Kogyo Kabushiki Kaisha Lens barrier mechanism
FR2748822B1 (en) * 1996-05-15 1998-08-14 Perrier Alain DEVICE DESIGNED FOR PERCEPTION OF PERSPECTIVE AND NATURAL RELIEF IN AUDIOVISUAL
JP2000075357A (en) * 1998-08-28 2000-03-14 Minolta Co Ltd Image pickup unit
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
KR101700364B1 (en) * 2010-09-08 2017-01-31 삼성전자주식회사 Light amount adjusting device and photographing apparatus with the same
DE102015111985A1 (en) * 2015-07-23 2017-01-26 Vantage Film Gmbh Ellipse-like aperture for a camera lens or for a photo or film camera
DE102021103323A1 (en) * 2021-02-12 2022-08-18 Carl Zeiss Ag Pannini lens and imaging optical device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB304711A (en) * 1927-11-12 1929-01-25 Ludwig Maria Dieterich Improvements in photographic apparatus
GB411827A (en) * 1931-09-12 1934-06-12 Oedoen Riszdorfer Improvements in and relating to diaphragms for photographic apparatus
GB654250A (en) * 1944-12-04 1951-06-13 Joseph Marchand Hall Improvements in or relating to devices for measuring the light cast by a photographic enlarger toward a surface
GB677129A (en) * 1948-04-24 1952-08-13 Joseph Marchand Hall Improvements in or relating to apparatus and method for measuring colour values
GB690309A (en) * 1949-06-29 1953-04-15 Emel Ets Improvements in optical viewfinders
DE1027907B (en) * 1954-02-18 1958-04-10 Meopta Narodni Podnik Focusing device for optical devices, in particular for photographic enlargers
US3827811A (en) * 1972-03-15 1974-08-06 Nippon Kogaku Kk Optical measuring device employing a diaphragm with reflecting surfaces
DE2408932B2 (en) * 1974-02-25 1976-01-02 Balda-Werke Photographische Geraete Und Kunststoff Gmbh & Co Kg, 4980 Buende Camera shutter with two slats arranged one behind the other and guided in the longitudinal direction
JPS574672B2 (en) * 1974-08-12 1982-01-27
GB2119537A (en) * 1982-04-27 1983-11-16 Graham Sheetmetal Fabricators Lighting unit

Also Published As

Publication number Publication date
GB2164470A (en) 1986-03-19
JPS61179427A (en) 1986-08-12
DE3531983A1 (en) 1986-03-27
GB2164470B (en) 1988-10-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee