FR937925A - Diaphragme de source lumineuse - Google Patents

Diaphragme de source lumineuse

Info

Publication number
FR937925A
FR937925A FR937925DA FR937925A FR 937925 A FR937925 A FR 937925A FR 937925D A FR937925D A FR 937925DA FR 937925 A FR937925 A FR 937925A
Authority
FR
France
Prior art keywords
light source
source diaphragm
diaphragm
light
source
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
Other languages
English (en)
Inventor
Maurice Paour
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 filed Critical
Application granted granted Critical
Publication of FR937925A publication Critical patent/FR937925A/fr
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
    • G03B9/02—Diaphragms
    • G03B9/07—Diaphragms with means for presetting the diaphragm

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR937925D 1946-11-21 1946-11-21 Diaphragme de source lumineuse Expired FR937925A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR937925T 1946-11-21

Publications (1)

Publication Number Publication Date
FR937925A true FR937925A (fr) 1948-08-31

Family

ID=9458191

Family Applications (1)

Application Number Title Priority Date Filing Date
FR937925D Expired FR937925A (fr) 1946-11-21 1946-11-21 Diaphragme de source lumineuse

Country Status (1)

Country Link
FR (1) FR937925A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972636C (de) * 1953-05-09 1959-08-27 Optische Werke C A Steinheil S Photographisches Objektiv mit Vorwaehlblende
US2965012A (en) * 1956-11-02 1960-12-20 Schneider Co Optische Werke Optical system with diaphragm preselector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972636C (de) * 1953-05-09 1959-08-27 Optische Werke C A Steinheil S Photographisches Objektiv mit Vorwaehlblende
US2965012A (en) * 1956-11-02 1960-12-20 Schneider Co Optische Werke Optical system with diaphragm preselector

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