FR819657A - Improvements to photographic lenses and cameras incorporating photoelectric exposure meters - Google Patents

Improvements to photographic lenses and cameras incorporating photoelectric exposure meters

Info

Publication number
FR819657A
FR819657A FR819657DA FR819657A FR 819657 A FR819657 A FR 819657A FR 819657D A FR819657D A FR 819657DA FR 819657 A FR819657 A FR 819657A
Authority
FR
France
Prior art keywords
photographic lenses
exposure meters
photoelectric exposure
cameras incorporating
incorporating photoelectric
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)
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR819657A publication Critical patent/FR819657A/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
    • G03B7/04—Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device, e.g. by restoring point to a fixed associated reference mark
    • G03B7/06—Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device, e.g. by restoring point to a fixed associated reference mark by a follow-up movement of an associated reference mark to the pointer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR819657D 1936-03-23 1937-03-23 Improvements to photographic lenses and cameras incorporating photoelectric exposure meters Expired FR819657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US819657XA 1936-03-23 1936-03-23

Publications (1)

Publication Number Publication Date
FR819657A true FR819657A (en) 1937-10-23

Family

ID=22167522

Family Applications (1)

Application Number Title Priority Date Filing Date
FR819657D Expired FR819657A (en) 1936-03-23 1937-03-23 Improvements to photographic lenses and cameras incorporating photoelectric exposure meters

Country Status (1)

Country Link
FR (1) FR819657A (en)

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