FR789301A - Photomètre photo-électrique - Google Patents

Photomètre photo-électrique

Info

Publication number
FR789301A
FR789301A FR789301DA FR789301A FR 789301 A FR789301 A FR 789301A FR 789301D A FR789301D A FR 789301DA FR 789301 A FR789301 A FR 789301A
Authority
FR
France
Prior art keywords
photoelectric photometer
photometer
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
English (en)
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon 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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Application granted granted Critical
Publication of FR789301A publication Critical patent/FR789301A/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR789301D 1934-04-28 1935-04-26 Photomètre photo-électrique Expired FR789301A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE789301X 1934-04-28

Publications (1)

Publication Number Publication Date
FR789301A true FR789301A (fr) 1935-10-26

Family

ID=6699644

Family Applications (1)

Application Number Title Priority Date Filing Date
FR789301D Expired FR789301A (fr) 1934-04-28 1935-04-26 Photomètre photo-électrique

Country Status (1)

Country Link
FR (1) FR789301A (fr)

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