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FR815588A - Improvements to cameras - Google Patents

Improvements to cameras

Info

Publication number
FR815588A
FR815588A FR815588DA FR815588A FR 815588 A FR815588 A FR 815588A FR 815588D A FR815588D A FR 815588DA FR 815588 A FR815588 A FR 815588A
Authority
FR
France
Prior art keywords
cameras
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
French (fr)
Inventor
Noel Pemberton Billing
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 FR815588A publication Critical patent/FR815588A/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
    • G03B9/58—Means for varying duration of "open" period of shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR815588D 1936-05-16 1936-09-04 Improvements to cameras Expired FR815588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB815588X 1936-05-16

Publications (1)

Publication Number Publication Date
FR815588A true FR815588A (en) 1937-07-16

Family

ID=10527021

Family Applications (1)

Application Number Title Priority Date Filing Date
FR815588D Expired FR815588A (en) 1936-05-16 1936-09-04 Improvements to cameras

Country Status (1)

Country Link
FR (1) FR815588A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757318C (en) * 1937-08-06 1954-02-22 Leitz Ernst Gmbh Photographic apparatus with light meter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757318C (en) * 1937-08-06 1954-02-22 Leitz Ernst Gmbh Photographic apparatus with light meter

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