HK19276A - Improvements relating to photographic cameras - Google Patents

Improvements relating to photographic cameras

Info

Publication number
HK19276A
HK19276A HK192/76*UA HK19276A HK19276A HK 19276 A HK19276 A HK 19276A HK 19276 A HK19276 A HK 19276A HK 19276 A HK19276 A HK 19276A
Authority
HK
Hong Kong
Prior art keywords
improvements relating
photographic cameras
photographic
cameras
relating
Prior art date
Application number
HK192/76*UA
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Publication of HK19276A publication Critical patent/HK19276A/en

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
    • G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera
    • 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
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time
    • 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
    • G03B9/07—Diaphragms with means for presetting the diaphragm

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)
  • Exposure Control For Cameras (AREA)
HK192/76*UA 1970-12-24 1976-04-01 Improvements relating to photographic cameras HK19276A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10133670A 1970-12-24 1970-12-24
US16477271A 1971-07-21 1971-07-21

Publications (1)

Publication Number Publication Date
HK19276A true HK19276A (en) 1976-04-09

Family

ID=26798137

Family Applications (1)

Application Number Title Priority Date Filing Date
HK192/76*UA HK19276A (en) 1970-12-24 1976-04-01 Improvements relating to photographic cameras

Country Status (4)

Country Link
CA (1) CA976016A (en)
DE (1) DE2163294C3 (en)
GB (1) GB1331700A (en)
HK (1) HK19276A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558253A1 (en) * 1975-01-02 1976-07-08 Polaroid Corp EXPOSURE CONTROL DEVICE FOR PHOTOGRAPHICAL APPARATUS
US4104653A (en) * 1977-05-31 1978-08-01 Polaroid Corporation Scanning shutter blade arrangement with ambient and flash ranges

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT226513B (en) * 1960-11-11 1963-03-25 Agfa Ag Photographic camera with an automatic exposure control device

Also Published As

Publication number Publication date
DE2163294B2 (en) 1980-09-25
DE2163294A1 (en) 1972-07-13
AU3734771A (en) 1973-06-28
DE2163294C3 (en) 1981-06-11
GB1331700A (en) 1973-09-26
CA976016A (en) 1975-10-14

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