FR850202A - Perfectionnements aux appareils photographiques à posemètre électrique - Google Patents

Perfectionnements aux appareils photographiques à posemètre électrique

Info

Publication number
FR850202A
FR850202A FR850202DA FR850202A FR 850202 A FR850202 A FR 850202A FR 850202D A FR850202D A FR 850202DA FR 850202 A FR850202 A FR 850202A
Authority
FR
France
Prior art keywords
cameras
electric light
light meter
meter
electric
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
Ernst Leitz GmbH
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 Ernst Leitz Wetzlar GmbH, Ernst Leitz GmbH filed Critical Ernst Leitz Wetzlar GmbH
Application granted granted Critical
Publication of FR850202A publication Critical patent/FR850202A/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
    • 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)
FR850202D 1938-05-16 1939-02-11 Perfectionnements aux appareils photographiques à posemètre électrique Expired FR850202A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE850202X 1938-05-16

Publications (1)

Publication Number Publication Date
FR850202A true FR850202A (fr) 1939-12-11

Family

ID=6776678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR850202D Expired FR850202A (fr) 1938-05-16 1939-02-11 Perfectionnements aux appareils photographiques à posemètre électrique

Country Status (1)

Country Link
FR (1) FR850202A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746265C (de) * 1940-03-13 1944-06-17 Johannes Dr Heidenhain Messmarken-system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746265C (de) * 1940-03-13 1944-06-17 Johannes Dr Heidenhain Messmarken-system

Similar Documents

Publication Publication Date Title
FR861524A (fr) Perfectionnements apportés aux rasoirs à commande électrique
FR860167A (fr) Perfectionnements aux appareils photographiques
FR822377A (fr) Perfectionnements aux appareils photographiques
FR850202A (fr) Perfectionnements aux appareils photographiques à posemètre électrique
FR840955A (fr) Perfectionnements aux appareils photographiques
FR870126A (fr) Perfectionnements aux appareils photographiques
FR845607A (fr) Perfectionnements aux appareils photographiques
FR841412A (fr) Perfectionnements aux appareils photographiques
FR867527A (fr) Perfectionnements aux appareils photographiques
FR860844A (fr) Perfectionnements aux appareils photographiques
FR867403A (fr) Perfectionnements aux appareils photographiques
FR881203A (fr) Appareil photographique à posemètre électrique
FR879317A (fr) Posemètre électrique
FR867467A (fr) Perfectionnements aux appareils photographiques
FR842513A (fr) Perfectionnements aux appareils photographiques
FR835749A (fr) Perfectionnements aux appareils photographiques à main
FR863182A (fr) Perfectionnements aux sources lumineuses à décharge électrique
FR835916A (fr) Perfectionnements aux appareils de prise de vues cinématographiques
FR874777A (fr) Perfectionnements aux appareils photographiques
FR815588A (fr) Perfectionnements aux appareils photographiques
FR834380A (fr) Perfectionnements aux appareils photographiques
FR897801A (fr) Posemètre électrique pour appareils photographiques
FR48480E (fr) Perfectionnements aux appareils photographiques
FR838022A (fr) Perfectionnements apportés aux appareils photographiques
FR837579A (fr) Perfectionnements aux appareils photographiques