GB1349494A - Circuit for compensating for light intensity variations in photo electric apparatus - Google Patents

Circuit for compensating for light intensity variations in photo electric apparatus

Info

Publication number
GB1349494A
GB1349494A GB1103172A GB1103172A GB1349494A GB 1349494 A GB1349494 A GB 1349494A GB 1103172 A GB1103172 A GB 1103172A GB 1103172 A GB1103172 A GB 1103172A GB 1349494 A GB1349494 A GB 1349494A
Authority
GB
United Kingdom
Prior art keywords
photo
electric apparatus
compensating
circuit
light intensity
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
GB1103172A
Other languages
English (en)
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.)
Erwin Sick GmbH Optik Elektronik
Original Assignee
Erwin Sick GmbH Optik Elektronik
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 Erwin Sick GmbH Optik Elektronik filed Critical Erwin Sick GmbH Optik Elektronik
Publication of GB1349494A publication Critical patent/GB1349494A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
GB1103172A 1971-03-30 1972-03-09 Circuit for compensating for light intensity variations in photo electric apparatus Expired GB1349494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2115317A DE2115317C3 (de) 1971-03-30 1971-03-30 Schaltungsanordnung zur Kompensation von Lichtschwankungen einer Signallampe bei photoelektrischen Geräten

Publications (1)

Publication Number Publication Date
GB1349494A true GB1349494A (en) 1974-04-03

Family

ID=5803219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1103172A Expired GB1349494A (en) 1971-03-30 1972-03-09 Circuit for compensating for light intensity variations in photo electric apparatus

Country Status (4)

Country Link
DE (1) DE2115317C3 (enrdf_load_stackoverflow)
FR (1) FR2132302B1 (enrdf_load_stackoverflow)
GB (1) GB1349494A (enrdf_load_stackoverflow)
IT (1) IT950835B (enrdf_load_stackoverflow)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420058A (en) * 1945-01-18 1947-05-06 Gen Aniline & Film Corp Compensated photoelectric photometer circuits
JPS404557Y1 (enrdf_load_stackoverflow) * 1959-11-02 1965-02-09
CH444964A (de) * 1965-10-02 1967-10-15 Oerlikon Buehrle Holding Ag Anordnung zur Kompensation veränderlicher Störeinflüsse auf eine strahlungselektrische Mess- oder Steuerstrecke
AT267680B (de) * 1966-11-23 1969-01-10 Elin Union Ag Steuerschaltung für Beleuchtungsregelung
DE1914893B2 (de) * 1968-08-20 1972-12-21 Landis & Gyr Ag, Zug (Schweiz) Schaltungsanordnung zur temperaturkompensation bei einem rundsteuerempfaenger

Also Published As

Publication number Publication date
FR2132302A1 (enrdf_load_stackoverflow) 1972-11-17
DE2115317A1 (de) 1972-10-26
DE2115317B2 (de) 1977-10-27
DE2115317C3 (de) 1982-09-16
FR2132302B1 (enrdf_load_stackoverflow) 1977-08-26
IT950835B (it) 1973-06-20

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee