FR1231886A - Exposure time adjustment mechanism - Google Patents

Exposure time adjustment mechanism

Info

Publication number
FR1231886A
FR1231886A FR794629A FR794629A FR1231886A FR 1231886 A FR1231886 A FR 1231886A FR 794629 A FR794629 A FR 794629A FR 794629 A FR794629 A FR 794629A FR 1231886 A FR1231886 A FR 1231886A
Authority
FR
France
Prior art keywords
adjustment mechanism
exposure time
time adjustment
exposure
time
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
FR794629A
Other languages
French (fr)
Inventor
Edwin Herbert Land
David Sumner Grey
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
International Polaroid Corp
Original Assignee
Polaroid Corp
International 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, International Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of FR1231886A publication Critical patent/FR1231886A/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
    • G03B7/08—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR794629A 1958-05-15 1959-05-13 Exposure time adjustment mechanism Expired FR1231886A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1231886XA 1958-05-15 1958-05-15

Publications (1)

Publication Number Publication Date
FR1231886A true FR1231886A (en) 1960-10-04

Family

ID=22407192

Family Applications (1)

Application Number Title Priority Date Filing Date
FR794629A Expired FR1231886A (en) 1958-05-15 1959-05-13 Exposure time adjustment mechanism

Country Status (1)

Country Link
FR (1) FR1231886A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071055A (en) * 1961-08-09 1963-01-01 Eastman Kodak Co Photoelectric exposure control in camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071055A (en) * 1961-08-09 1963-01-01 Eastman Kodak Co Photoelectric exposure control in camera

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