FR1223900A - Accessory device for cameras - Google Patents

Accessory device for cameras

Info

Publication number
FR1223900A
FR1223900A FR794314A FR794314A FR1223900A FR 1223900 A FR1223900 A FR 1223900A FR 794314 A FR794314 A FR 794314A FR 794314 A FR794314 A FR 794314A FR 1223900 A FR1223900 A FR 1223900A
Authority
FR
France
Prior art keywords
cameras
accessory device
accessory
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
FR794314A
Other languages
French (fr)
Inventor
William H Eburn
Richard R Wareham
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 FR1223900A publication Critical patent/FR1223900A/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)
  • Accessories Of Cameras (AREA)
FR794314A 1958-05-13 1959-05-11 Accessory device for cameras Expired FR1223900A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1223900XA 1958-05-13 1958-05-13

Publications (1)

Publication Number Publication Date
FR1223900A true FR1223900A (en) 1960-06-21

Family

ID=22402423

Family Applications (1)

Application Number Title Priority Date Filing Date
FR794314A Expired FR1223900A (en) 1958-05-13 1959-05-11 Accessory device for cameras

Country Status (2)

Country Link
DE (1) DE1121459B (en)
FR (1) FR1223900A (en)

Also Published As

Publication number Publication date
DE1121459B (en) 1962-01-04

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