CA976016A - Unitary trim control - Google Patents

Unitary trim control

Info

Publication number
CA976016A
CA976016A CA131,054A CA131054A CA976016A CA 976016 A CA976016 A CA 976016A CA 131054 A CA131054 A CA 131054A CA 976016 A CA976016 A CA 976016A
Authority
CA
Canada
Prior art keywords
trim control
unitary trim
unitary
control
trim
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
Application number
CA131,054A
Other versions
CA131054S (en
Inventor
Bruce K. Johnson
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.)
Polaroid Corp
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
Application granted granted Critical
Publication of CA976016A publication Critical patent/CA976016A/en
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
    • 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)
CA131,054A 1970-12-24 1971-12-23 Unitary trim control Expired CA976016A (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
CA976016A true CA976016A (en) 1975-10-14

Family

ID=26798137

Family Applications (1)

Application Number Title Priority Date Filing Date
CA131,054A Expired CA976016A (en) 1970-12-24 1971-12-23 Unitary trim control

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
HK19276A (en) 1976-04-09

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