FR2317675A1 - Dispositif de regulation de la pose pour photographie - Google Patents

Dispositif de regulation de la pose pour photographie

Info

Publication number
FR2317675A1
FR2317675A1 FR7521749A FR7521749A FR2317675A1 FR 2317675 A1 FR2317675 A1 FR 2317675A1 FR 7521749 A FR7521749 A FR 7521749A FR 7521749 A FR7521749 A FR 7521749A FR 2317675 A1 FR2317675 A1 FR 2317675A1
Authority
FR
France
Prior art keywords
integrated circuit
photoresistor
input
timer block
block connected
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.)
Granted
Application number
FR7521749A
Other languages
English (en)
Other versions
FR2317675B1 (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.)
IODVALKIS VITAUTAS
Original Assignee
IODVALKIS VITAUTAS
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 IODVALKIS VITAUTAS filed Critical IODVALKIS VITAUTAS
Priority to FR7521749A priority Critical patent/FR2317675A1/fr
Publication of FR2317675A1 publication Critical patent/FR2317675A1/fr
Application granted granted Critical
Publication of FR2317675B1 publication Critical patent/FR2317675B1/fr
Granted 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)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Exposure Control For Cameras (AREA)
FR7521749A 1975-07-10 1975-07-10 Dispositif de regulation de la pose pour photographie Granted FR2317675A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7521749A FR2317675A1 (fr) 1975-07-10 1975-07-10 Dispositif de regulation de la pose pour photographie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7521749A FR2317675A1 (fr) 1975-07-10 1975-07-10 Dispositif de regulation de la pose pour photographie

Publications (2)

Publication Number Publication Date
FR2317675A1 true FR2317675A1 (fr) 1977-02-04
FR2317675B1 FR2317675B1 (fr) 1977-12-16

Family

ID=9157786

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7521749A Granted FR2317675A1 (fr) 1975-07-10 1975-07-10 Dispositif de regulation de la pose pour photographie

Country Status (1)

Country Link
FR (1) FR2317675A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152091A5 (fr) * 1971-09-03 1973-04-20 Olympus Optical Co
DE2308734A1 (de) * 1972-02-25 1973-09-13 Copal Co Ltd Belichtungswarnschaltung fuer photographische kameras
US3777638A (en) * 1971-11-02 1973-12-11 Minolta Camera Kk Exposure control circuitry compensated for temperature and voltage fluctuations

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152091A5 (fr) * 1971-09-03 1973-04-20 Olympus Optical Co
US3777638A (en) * 1971-11-02 1973-12-11 Minolta Camera Kk Exposure control circuitry compensated for temperature and voltage fluctuations
DE2308734A1 (de) * 1972-02-25 1973-09-13 Copal Co Ltd Belichtungswarnschaltung fuer photographische kameras

Also Published As

Publication number Publication date
FR2317675B1 (fr) 1977-12-16

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Legal Events

Date Code Title Description
ST Notification of lapse