FR2181312A5 - - Google Patents

Info

Publication number
FR2181312A5
FR2181312A5 FR7313281A FR7313281A FR2181312A5 FR 2181312 A5 FR2181312 A5 FR 2181312A5 FR 7313281 A FR7313281 A FR 7313281A FR 7313281 A FR7313281 A FR 7313281A FR 2181312 A5 FR2181312 A5 FR 2181312A5
Authority
FR
France
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
FR7313281A
Other languages
French (fr)
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 FR2181312A5 publication Critical patent/FR2181312A5/fr
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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter
    • 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
    • G03B7/085—Analogue circuits for control of aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
FR7313281A 1972-04-21 1973-04-12 Expired FR2181312A5 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24580072A 1972-04-21 1972-04-21

Publications (1)

Publication Number Publication Date
FR2181312A5 true FR2181312A5 (enExample) 1973-11-30

Family

ID=22928131

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7313281A Expired FR2181312A5 (enExample) 1972-04-21 1973-04-12

Country Status (5)

Country Link
JP (1) JPS5340448B2 (enExample)
CA (1) CA991465A (enExample)
DE (1) DE2318510C2 (enExample)
FR (1) FR2181312A5 (enExample)
GB (1) GB1417044A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2322386A1 (fr) * 1975-08-28 1977-03-25 Polaroid Corp Systeme d'obturateur electro-mecanique muni d'un verrouillage mecanique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117159B2 (enExample) * 1972-01-25 1976-05-31
JPS50139729A (enExample) * 1974-04-24 1975-11-08
US3942183A (en) * 1974-07-02 1976-03-02 Polaroid Corporation Camera with pivoting blades
JPS5449128A (en) * 1977-09-27 1979-04-18 Seiko Koki Kk Electromagnetic drive apparatus of shutter for camera
JPS5796425U (enExample) * 1980-12-04 1982-06-14

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641889A (en) * 1970-09-02 1972-02-15 Polaroid Corp Exposure control system
JPS4817321B1 (enExample) * 1970-09-25 1973-05-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2322386A1 (fr) * 1975-08-28 1977-03-25 Polaroid Corp Systeme d'obturateur electro-mecanique muni d'un verrouillage mecanique

Also Published As

Publication number Publication date
CA991465A (en) 1976-06-22
JPS5340448B2 (enExample) 1978-10-27
GB1417044A (en) 1975-12-10
JPS4922120A (enExample) 1974-02-27
DE2318510A1 (de) 1973-10-31
DE2318510C2 (de) 1983-02-17

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Legal Events

Date Code Title Description
ST Notification of lapse