GB1043474A - Automatic exposure device for photographic cameras - Google Patents

Automatic exposure device for photographic cameras

Info

Publication number
GB1043474A
GB1043474A GB15702/65A GB1570265A GB1043474A GB 1043474 A GB1043474 A GB 1043474A GB 15702/65 A GB15702/65 A GB 15702/65A GB 1570265 A GB1570265 A GB 1570265A GB 1043474 A GB1043474 A GB 1043474A
Authority
GB
United Kingdom
Prior art keywords
automatic exposure
test lamp
lamp
exposure device
eyepieces
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
GB15702/65A
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.)
Hittech Prontor GmbH
Original Assignee
Prontor Werk Alfred Gauthier GmbH
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 Prontor Werk Alfred Gauthier GmbH filed Critical Prontor Werk Alfred Gauthier GmbH
Publication of GB1043474A publication Critical patent/GB1043474A/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
    • G03B43/00—Testing correct operation of photographic apparatus or parts thereof
    • 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
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • 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
    • 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
    • G03B7/26—Power supplies; Circuitry or arrangement to switch on the power source; Circuitry to check the power source voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Endoscopes (AREA)
  • Eye Examination Apparatus (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

1,043,474. Automatic exposure control. PRONTOR-WERK ALFRED GAUTHER G.m.b.H. April 13, 1965 [May 23, 1964], No. 15702/65. Heading G2A. An automatic exposure control has an electronic control circuit, Fig. 1 (not shown) which includes a test lamp 5, Fig. 3, by means of which the condition of a battery 1 Fig. 1 (not shown) may be checked. The test lamp 5 Fig. 3 is energized through a switch 6 and can be viewed through eyepieces 9, 12. The eyepiece 9 has a grey filter 10 of such density that the test lamp 5 can be seen so long as the battery voltage is above an admissible level. The eyepiece 12 allows the test lamp to be viewed to ascertain whether it is lit. Fibre optics 15, 16, Fig. 4 (not shown) may connect the lamp and eyepieces when fitted at separated points.
GB15702/65A 1964-05-23 1965-04-13 Automatic exposure device for photographic cameras Expired GB1043474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG40670A DE1237429B (en) 1964-05-23 1964-05-23 Electronically working automatic exposure for photographic cameras

Publications (1)

Publication Number Publication Date
GB1043474A true GB1043474A (en) 1966-09-21

Family

ID=7126479

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15702/65A Expired GB1043474A (en) 1964-05-23 1965-04-13 Automatic exposure device for photographic cameras

Country Status (2)

Country Link
DE (1) DE1237429B (en)
GB (1) GB1043474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664244A (en) * 1970-09-10 1972-05-23 Eastman Kodak Co Indicating apparatus for exposure control apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160299B (en) * 1962-04-04 1963-12-27 Leitz Ernst Gmbh Camera with voltage testing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664244A (en) * 1970-09-10 1972-05-23 Eastman Kodak Co Indicating apparatus for exposure control apparatus

Also Published As

Publication number Publication date
DE1237429B (en) 1967-03-23

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