CH381971A - Iris diaphragm with several arc-shaped lamellas, in particular for photographic purposes - Google Patents

Iris diaphragm with several arc-shaped lamellas, in particular for photographic purposes

Info

Publication number
CH381971A
CH381971A CH54561A CH54561A CH381971A CH 381971 A CH381971 A CH 381971A CH 54561 A CH54561 A CH 54561A CH 54561 A CH54561 A CH 54561A CH 381971 A CH381971 A CH 381971A
Authority
CH
Switzerland
Prior art keywords
iris diaphragm
several arc
photographic purposes
shaped lamellas
lamellas
Prior art date
Application number
CH54561A
Other languages
German (de)
Inventor
Herbert Dipl Ing Mahn
Original Assignee
Schneider Co Optische Werke
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 Schneider Co Optische Werke filed Critical Schneider Co Optische Werke
Publication of CH381971A publication Critical patent/CH381971A/en

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)
  • Tents Or Canopies (AREA)
CH54561A 1960-04-13 1961-01-18 Iris diaphragm with several arc-shaped lamellas, in particular for photographic purposes CH381971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH27738A DE1115474B (en) 1960-04-13 1960-04-13 Iris diaphragm with several arched pairs of lamellae connected to one another by a joint

Publications (1)

Publication Number Publication Date
CH381971A true CH381971A (en) 1964-09-15

Family

ID=7430870

Family Applications (1)

Application Number Title Priority Date Filing Date
CH54561A CH381971A (en) 1960-04-13 1961-01-18 Iris diaphragm with several arc-shaped lamellas, in particular for photographic purposes

Country Status (3)

Country Link
CH (1) CH381971A (en)
DE (1) DE1115474B (en)
GB (1) GB954229A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2726144A1 (en) * 1977-06-10 1978-12-14 Zeiss Carl Fa AUTOMATIC SPRING DISC FOR LENSES FOR PHOTOGRAPHIC CAMERAS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2206086A (en) * 1939-03-09 1940-07-02 Eastman Kodak Co Camera lens diaphragm
US2913972A (en) * 1955-05-02 1959-11-24 Electronics Corp America Iris diaphragm
DE1026991B (en) * 1956-09-29 1958-03-27 Voigtlaender Ag Iris diaphragm

Also Published As

Publication number Publication date
GB954229A (en) 1964-04-02
DE1115474B (en) 1961-10-19

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