[go: up one dir, main page]

GB2226145B - Photometer device in a single lens reflex camera - Google Patents

Photometer device in a single lens reflex camera

Info

Publication number
GB2226145B
GB2226145B GB8905785A GB8905785A GB2226145B GB 2226145 B GB2226145 B GB 2226145B GB 8905785 A GB8905785 A GB 8905785A GB 8905785 A GB8905785 A GB 8905785A GB 2226145 B GB2226145 B GB 2226145B
Authority
GB
United Kingdom
Prior art keywords
single lens
lens reflex
reflex camera
photometer device
photometer
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 - Lifetime
Application number
GB8905785A
Other versions
GB8905785D0 (en
GB2226145A (en
Inventor
Irene Planek
Richard Gebhardt
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.)
Pentacon GmbH Foto und Feinwerktechnik
Original Assignee
Pentacon Dresden VEB
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 Pentacon Dresden VEB filed Critical Pentacon Dresden VEB
Publication of GB8905785D0 publication Critical patent/GB8905785D0/en
Publication of GB2226145A publication Critical patent/GB2226145A/en
Application granted granted Critical
Publication of GB2226145B publication Critical patent/GB2226145B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/099—Arrangement of photoelectric elements in or on the camera
    • G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
    • G03B7/0997—Through the lens [TTL] measuring
    • G03B7/09979—Multi-zone light measuring
    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/099—Arrangement of photoelectric elements in or on the camera
    • G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
    • G03B7/0997—Through the lens [TTL] measuring
    • G03B7/09971—Through the lens [TTL] measuring in mirror-reflex cameras
    • G03B7/09976—Through the lens [TTL] measuring in mirror-reflex cameras the sensor being mounted in, before, or behind the porro-prism

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Viewfinders (AREA)
GB8905785A 1988-04-12 1989-03-14 Photometer device in a single lens reflex camera Expired - Lifetime GB2226145B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD88314633A DD270603A1 (en) 1988-04-12 1988-04-12 LIGHT MEASURING DEVICE FOR A MIRROR REFLECTING CAMERA

Publications (3)

Publication Number Publication Date
GB8905785D0 GB8905785D0 (en) 1989-04-26
GB2226145A GB2226145A (en) 1990-06-20
GB2226145B true GB2226145B (en) 1992-06-10

Family

ID=5598361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8905785A Expired - Lifetime GB2226145B (en) 1988-04-12 1989-03-14 Photometer device in a single lens reflex camera

Country Status (3)

Country Link
DD (1) DD270603A1 (en)
DE (1) DE3908228A1 (en)
GB (1) GB2226145B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6215503B1 (en) 1998-05-29 2001-04-10 Microsoft Corporation Image generator and method for resolving non-binary cyclic occlusions with image compositing operations
US6844981B2 (en) * 2002-09-25 2005-01-18 Koninklijke Philips Electronics N.V. Non-symmetrical light stop

Also Published As

Publication number Publication date
DD270603A1 (en) 1989-08-02
GB8905785D0 (en) 1989-04-26
DE3908228A1 (en) 1989-10-26
GB2226145A (en) 1990-06-20

Similar Documents

Publication Publication Date Title
GB2263841B (en) A mode changing device for a camera
GB2242752B (en) Camera and photographic device
GB2215086B (en) Zoom lens system for use in a compact camera
GB2185586B (en) Shutter control device for a camera
GB2234600B (en) Single lens reflex camera
EP0494680A3 (en) A photographic camera
GB2225643B (en) A camera shutter mechanism
GB2240175B (en) Camera photometry device
GB2242753B (en) Camera and photographic device
GB2260417B (en) Single lens reflex camera
GB8907228D0 (en) Improvements in photographic cameras
GB2249187B (en) Photometering device in single lens reflex camera
GB2226145B (en) Photometer device in a single lens reflex camera
GB2221320B (en) Single-lens reflex camera with strobe incorporated therein
GB2227849B (en) Shutter mechanism for a camera
EP0416904A3 (en) Exposure control device in a camera
GB2235058B (en) Strobe device for a camera
GB2226649B (en) Lens shutter device for camera
GB2242990B (en) Photometric device for a camera
GB2208721B (en) Shutter mechanism for a single lens reflex camera
GB8801077D0 (en) Photographic camera
GB2221114B (en) Autofocus camera
GB8928961D0 (en) Focal plane shutter for a camera
GB9204886D0 (en) Exposure control apparatus in single lens reflex camera

Legal Events

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

Effective date: 19930314