FR1445955A - Device for the electronic focusing of optical systems, in particular in magnifying cameras - Google Patents

Device for the electronic focusing of optical systems, in particular in magnifying cameras

Info

Publication number
FR1445955A
FR1445955A FR29844A FR29844A FR1445955A FR 1445955 A FR1445955 A FR 1445955A FR 29844 A FR29844 A FR 29844A FR 29844 A FR29844 A FR 29844A FR 1445955 A FR1445955 A FR 1445955A
Authority
FR
France
Prior art keywords
magnifying
cameras
optical systems
electronic focusing
focusing
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
FR29844A
Other languages
French (fr)
Inventor
Siegfried Barbieri
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.)
Durst AG Fabrik Fototechnischer Apparate
Durst SpA Fabbrica Macchine ed Apparecchi Fototecnici
Original Assignee
Durst AG Fabrik Fototechnischer Apparate
Durst SpA Fabbrica Macchine ed Apparecchi Fototecnici
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 Durst AG Fabrik Fototechnischer Apparate, Durst SpA Fabbrica Macchine ed Apparecchi Fototecnici filed Critical Durst AG Fabrik Fototechnischer Apparate
Priority to FR29844A priority Critical patent/FR1445955A/en
Application granted granted Critical
Publication of FR1445955A publication Critical patent/FR1445955A/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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/34—Means for automatic focusing therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR29844A 1965-08-30 1965-08-30 Device for the electronic focusing of optical systems, in particular in magnifying cameras Expired FR1445955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR29844A FR1445955A (en) 1965-08-30 1965-08-30 Device for the electronic focusing of optical systems, in particular in magnifying cameras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR29844A FR1445955A (en) 1965-08-30 1965-08-30 Device for the electronic focusing of optical systems, in particular in magnifying cameras

Publications (1)

Publication Number Publication Date
FR1445955A true FR1445955A (en) 1966-07-15

Family

ID=8587468

Family Applications (1)

Application Number Title Priority Date Filing Date
FR29844A Expired FR1445955A (en) 1965-08-30 1965-08-30 Device for the electronic focusing of optical systems, in particular in magnifying cameras

Country Status (1)

Country Link
FR (1) FR1445955A (en)

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