GB205470A - Improvements in iris-diaphragms - Google Patents

Improvements in iris-diaphragms

Info

Publication number
GB205470A
GB205470A GB21578/23A GB2157823A GB205470A GB 205470 A GB205470 A GB 205470A GB 21578/23 A GB21578/23 A GB 21578/23A GB 2157823 A GB2157823 A GB 2157823A GB 205470 A GB205470 A GB 205470A
Authority
GB
United Kingdom
Prior art keywords
iris
fixed axis
diaphragms
blades
liee
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
GB21578/23A
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.)
Carl Zeiss AG
Original Assignee
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB205470A publication Critical patent/GB205470A/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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Diaphragms For Cameras (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Abstract

205,470. Zeiss, C. [Firm of]. Oct. 14, 1922, [Convention date]. Iris diaphragms fitted with curved blades a, supported at one end rotatably about a fixed axis and at the other end are displaceable relatively to the mount, have the blades a recessed on their hollow side from the point which liee in the centre of the diaphragm when closed to near to the end which is rotatable about a fixed axis.
GB21578/23A 1922-10-14 1923-08-27 Improvements in iris-diaphragms Expired GB205470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE205470X 1922-10-14

Publications (1)

Publication Number Publication Date
GB205470A true GB205470A (en) 1923-11-29

Family

ID=5787379

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21578/23A Expired GB205470A (en) 1922-10-14 1923-08-27 Improvements in iris-diaphragms

Country Status (1)

Country Link
GB (1) GB205470A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130183101A1 (en) * 2011-07-11 2013-07-18 GeoSea N.V. Method for Providing a Foundation for a Mass Located at Height, and a Positioning Frame for Performing the Method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130183101A1 (en) * 2011-07-11 2013-07-18 GeoSea N.V. Method for Providing a Foundation for a Mass Located at Height, and a Positioning Frame for Performing the Method

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