FR2419528A1 - Appareil photographique en particulier reflex automatique - Google Patents

Appareil photographique en particulier reflex automatique

Info

Publication number
FR2419528A1
FR2419528A1 FR7807926A FR7807926A FR2419528A1 FR 2419528 A1 FR2419528 A1 FR 2419528A1 FR 7807926 A FR7807926 A FR 7807926A FR 7807926 A FR7807926 A FR 7807926A FR 2419528 A1 FR2419528 A1 FR 2419528A1
Authority
FR
France
Prior art keywords
reflex camera
photoelectric cells
mirror
mirrors
polarised light
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.)
Pending
Application number
FR7807926A
Other languages
English (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7807926A priority Critical patent/FR2419528A1/fr
Publication of FR2419528A1 publication Critical patent/FR2419528A1/fr
Pending 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
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
    • 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
    • G03B7/09972—Through the lens [TTL] measuring in mirror-reflex cameras using the mirror as sensor light reflecting or transmitting member
    • 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
    • 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
    • G03B7/09978—Protection against viewer backlight or integration of the viewer light into the measured light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Telescopes (AREA)

Abstract

L'invention a trait à un appareil photographique en particulier à un reflex automatique à mesure interne. Cet appareil est caractérisé en ce qu'il comporte, en combinaison, des moyens de suppression à la source de toute polarisation interne s'opposant à l'utilisation rationnelle des filtres polariseurs par l'emploi de surfaces métalliques de réflexion et de déviation et, en particulier, par la substitution de deux miroirs métalliques de redressement de l'image visée au prisme pentagonal habituel, et des moyens empêchant l'infiltration de lumière parasite à travers l'oculaire. L'invention concerne les appareils photographiques.
FR7807926A 1978-03-10 1978-03-10 Appareil photographique en particulier reflex automatique Pending FR2419528A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7807926A FR2419528A1 (fr) 1978-03-10 1978-03-10 Appareil photographique en particulier reflex automatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7807926A FR2419528A1 (fr) 1978-03-10 1978-03-10 Appareil photographique en particulier reflex automatique

Publications (1)

Publication Number Publication Date
FR2419528A1 true FR2419528A1 (fr) 1979-10-05

Family

ID=9206000

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807926A Pending FR2419528A1 (fr) 1978-03-10 1978-03-10 Appareil photographique en particulier reflex automatique

Country Status (1)

Country Link
FR (1) FR2419528A1 (fr)

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