GB898214A - Improvements in or relating to a feeler device responsive to the position of the needle of a galvanometer - Google Patents

Improvements in or relating to a feeler device responsive to the position of the needle of a galvanometer

Info

Publication number
GB898214A
GB898214A GB1149061A GB1149061A GB898214A GB 898214 A GB898214 A GB 898214A GB 1149061 A GB1149061 A GB 1149061A GB 1149061 A GB1149061 A GB 1149061A GB 898214 A GB898214 A GB 898214A
Authority
GB
United Kingdom
Prior art keywords
needle
galvanometer
wheel
device responsive
relating
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
GB1149061A
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.)
Paillard SA
Original Assignee
Paillard SA
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 Paillard SA filed Critical Paillard SA
Publication of GB898214A publication Critical patent/GB898214A/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
    • 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
    • G03B7/12—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 a hand-actuated member moved from one position to another providing the energy to move the setting member, e.g. depression of shutter release button causes a stepped feeler to co-operate with the pointer of the light-sensitive device to set the diaphragm and thereafter release the shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

898,214. Photographic exposure meters. PAILLARD, S.A. March 29, 1961 [March 29, 1960], No. 11490/61. Class 98(1). [Also in Groups XXXVI and XL(b)] An adjustable clamping device responsive to the position of a galvanometer needle 2, comprises a bearing member 3, over which the needle moves, and upon which a feeler wheel 6 rolls until it clamps the needle against the bearing surface. The wheel and bearing surface may be smooth or, as shown, toothed. As described, the wheel is carried on an arm 5 driven through a pinion 4 by a rack 7 which controls the aperture of a camera diaphragm 8. The galvanometer is in such a case photo-electrically operated, to form a semi-automatic exposure setting device.
GB1149061A 1960-03-29 1961-03-29 Improvements in or relating to a feeler device responsive to the position of the needle of a galvanometer Expired GB898214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH359660 1960-03-29

Publications (1)

Publication Number Publication Date
GB898214A true GB898214A (en) 1962-06-06

Family

ID=4259389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1149061A Expired GB898214A (en) 1960-03-29 1961-03-29 Improvements in or relating to a feeler device responsive to the position of the needle of a galvanometer

Country Status (2)

Country Link
DE (1) DE1169286B (en)
GB (1) GB898214A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037843B (en) * 1954-10-11 1958-08-28 Michael Margaritoff Triggering and time setting device for a photographic camera

Also Published As

Publication number Publication date
DE1169286B (en) 1964-04-30

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