JPS5087645A - - Google Patents

Info

Publication number
JPS5087645A
JPS5087645A JP13791773A JP13791773A JPS5087645A JP S5087645 A JPS5087645 A JP S5087645A JP 13791773 A JP13791773 A JP 13791773A JP 13791773 A JP13791773 A JP 13791773A JP S5087645 A JPS5087645 A JP S5087645A
Authority
JP
Japan
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.)
Pending
Application number
JP13791773A
Other languages
Japanese (ja)
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 filed Critical
Priority to JP13791773A priority Critical patent/JPS5087645A/ja
Priority to NL7415735A priority patent/NL157115B/xx
Priority to FR7439471A priority patent/FR2254039B1/fr
Priority to GB5250374A priority patent/GB1471970A/en
Priority to DE19742457306 priority patent/DE2457306C3/de
Publication of JPS5087645A publication Critical patent/JPS5087645A/ja
Pending 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
    • G03B7/091—Digital circuits
    • G03B7/093—Digital circuits for control of exposure time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
JP13791773A 1973-12-05 1973-12-05 Pending JPS5087645A (enrdf_load_stackoverflow)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP13791773A JPS5087645A (enrdf_load_stackoverflow) 1973-12-05 1973-12-05
NL7415735A NL157115B (nl) 1973-12-05 1974-12-03 Belichtingsregelingsinrichting voor camera's met elektrisch bestuurde sluiter.
FR7439471A FR2254039B1 (enrdf_load_stackoverflow) 1973-12-05 1974-12-03
GB5250374A GB1471970A (en) 1973-12-05 1974-12-04 Exposure time control circuit for a camera
DE19742457306 DE2457306C3 (de) 1973-12-05 1974-12-04 Digital arbeitende Schaltungsanordnung zur automatischen Belichtungssteuerung und/oder -anzeige, insbesondere für photographische Kameras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13791773A JPS5087645A (enrdf_load_stackoverflow) 1973-12-05 1973-12-05

Publications (1)

Publication Number Publication Date
JPS5087645A true JPS5087645A (enrdf_load_stackoverflow) 1975-07-14

Family

ID=15209692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13791773A Pending JPS5087645A (enrdf_load_stackoverflow) 1973-12-05 1973-12-05

Country Status (4)

Country Link
JP (1) JPS5087645A (enrdf_load_stackoverflow)
FR (1) FR2254039B1 (enrdf_load_stackoverflow)
GB (1) GB1471970A (enrdf_load_stackoverflow)
NL (1) NL157115B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2744575A1 (de) 1976-10-05 1978-04-06 Asahi Optical Co Ltd Kamera mit elektrischer digitalsteuerung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2090668B (en) * 1980-11-04 1984-10-31 Asahi Optical Co Ltd Aperture value control device utilizing a frequency signal from a flash unit on a camera
KR100236641B1 (ko) * 1994-05-16 2000-01-15 유무성 카메라의 연속 휘도 측정장치 및 그 제어방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2744575A1 (de) 1976-10-05 1978-04-06 Asahi Optical Co Ltd Kamera mit elektrischer digitalsteuerung

Also Published As

Publication number Publication date
FR2254039A1 (enrdf_load_stackoverflow) 1975-07-04
NL157115B (nl) 1978-06-15
NL7415735A (nl) 1975-06-09
DE2457306A1 (de) 1975-06-12
FR2254039B1 (enrdf_load_stackoverflow) 1977-10-28
GB1471970A (en) 1977-04-27
DE2457306B2 (de) 1977-01-13

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