GB942274A - Automatic diaphragm-aperture control means - Google Patents

Automatic diaphragm-aperture control means

Info

Publication number
GB942274A
GB942274A GB4472460A GB4472460A GB942274A GB 942274 A GB942274 A GB 942274A GB 4472460 A GB4472460 A GB 4472460A GB 4472460 A GB4472460 A GB 4472460A GB 942274 A GB942274 A GB 942274A
Authority
GB
United Kingdom
Prior art keywords
meter
scale
setting
pointer
arm
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
GB4472460A
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.)
AUGUST HEINRICH LOMB
Carl Zeiss AG
Original Assignee
AUGUST HEINRICH LOMB
Carl Zeiss AG
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 AUGUST HEINRICH LOMB, Carl Zeiss AG filed Critical AUGUST HEINRICH LOMB
Publication of GB942274A publication Critical patent/GB942274A/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)
  • Diaphragms For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
  • Shutters For Cameras (AREA)

Abstract

942,274. Photographic cameras with photoelectric exposure control. CARL ZEISSSTIFTUNG, and A.H.LOMB, [trading as COMPURWERK FREDRICH DECKEL o HG]. Dec. 30,1960 [March 10, 1960], No. 44724/60. Heading G2A. Automatic camera diaphragm control means comprise an exposure meter which is rotatable according to the setting of the shutter speed and the position of an abutment surface on a detachable objective which is indicative of the maximum aperture thereof. On depression of the camera release 22, a lever 18 clamps the meter pointer 8 and a lever 128 releases the setting mechanism which runs down until an arm 86 is arrested by pointer 8. Arm 106 moves around the lens axis allowing the diaphragm ring 62 to be adjusted by a spring 68. A push rod 42 operated by a cam 46 on the shutter speed ring rotates the meter relative to a scale 83 through the gear train 26. When an objective with a different maximum aperture is fitted an abutment thereon shifts a push rod 44 to rotate the meter in a similar fashion. In this case scale 83 is similarly rotated through a linkage 76, 78, 80, 82 so that pointer 8 remains registered with the same division of scale 83 and the maximum aperture of the new objective is in the first sensing position of arm 86. Film speed is allowed for by setting a scale 52, causing cam 46 to rotate the meter accordingly. In a position for manual setting, a cam 142 disengages a clutch 108, 110. Specifications 275, 462 and 778, 933 are referred to.
GB4472460A 1960-03-10 1960-12-30 Automatic diaphragm-aperture control means Expired GB942274A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC20983A DE1124806B (en) 1960-03-10 1960-03-10 Aperture control device for photographic cameras with interchangeable lenses

Publications (1)

Publication Number Publication Date
GB942274A true GB942274A (en) 1963-11-20

Family

ID=7016909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4472460A Expired GB942274A (en) 1960-03-10 1960-12-30 Automatic diaphragm-aperture control means

Country Status (2)

Country Link
DE (1) DE1124806B (en)
GB (1) GB942274A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349138A (en) * 1965-07-21 1967-10-24 Universal Oil Prod Co Cyclocooligomerization process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1263494B (en) * 1962-04-19 1968-03-14 Zeiss Ikon Ag Photographic camera or shutter with automatic flash

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349138A (en) * 1965-07-21 1967-10-24 Universal Oil Prod Co Cyclocooligomerization process

Also Published As

Publication number Publication date
DE1124806B (en) 1962-03-01

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