FR807041A - Autofocus device for photographic enlargers or the like - Google Patents

Autofocus device for photographic enlargers or the like

Info

Publication number
FR807041A
FR807041A FR807041DA FR807041A FR 807041 A FR807041 A FR 807041A FR 807041D A FR807041D A FR 807041DA FR 807041 A FR807041 A FR 807041A
Authority
FR
France
Prior art keywords
autofocus device
photographic enlargers
enlargers
photographic
autofocus
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
Pierre Yardin
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 FR807041A publication Critical patent/FR807041A/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
    • G03B27/36—Means for automatic focusing therefor by mechanical connections, e.g. by cam, by linkage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR807041D 1936-06-04 1936-06-04 Autofocus device for photographic enlargers or the like Expired FR807041A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR807041T 1936-06-04

Publications (1)

Publication Number Publication Date
FR807041A true FR807041A (en) 1936-12-31

Family

ID=9252210

Family Applications (1)

Application Number Title Priority Date Filing Date
FR807041D Expired FR807041A (en) 1936-06-04 1936-06-04 Autofocus device for photographic enlargers or the like

Country Status (1)

Country Link
FR (1) FR807041A (en)

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