FR914932A - Focusing method and apparatus applicable to photographic enlargers - Google Patents

Focusing method and apparatus applicable to photographic enlargers

Info

Publication number
FR914932A
FR914932A FR914932DA FR914932A FR 914932 A FR914932 A FR 914932A FR 914932D A FR914932D A FR 914932DA FR 914932 A FR914932 A FR 914932A
Authority
FR
France
Prior art keywords
focusing method
apparatus applicable
photographic enlargers
enlargers
photographic
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
Henry-Robert Cohen
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 FR914932A publication Critical patent/FR914932A/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
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR914932D 1945-04-24 1945-04-24 Focusing method and apparatus applicable to photographic enlargers Expired FR914932A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR914932T 1945-04-24

Publications (1)

Publication Number Publication Date
FR914932A true FR914932A (en) 1946-10-22

Family

ID=9422553

Family Applications (1)

Application Number Title Priority Date Filing Date
FR914932D Expired FR914932A (en) 1945-04-24 1945-04-24 Focusing method and apparatus applicable to photographic enlargers

Country Status (1)

Country Link
FR (1) FR914932A (en)

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