FR768557A - Perfectionnements aux appareils d'agrandissement photographiques - Google Patents

Perfectionnements aux appareils d'agrandissement photographiques

Info

Publication number
FR768557A
FR768557A FR768557DA FR768557A FR 768557 A FR768557 A FR 768557A FR 768557D A FR768557D A FR 768557DA FR 768557 A FR768557 A FR 768557A
Authority
FR
France
Prior art keywords
magnifiers
photographic
photographic magnifiers
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 FR768557A publication Critical patent/FR768557A/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
    • 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)
FR768557D 1933-04-01 1934-02-12 Perfectionnements aux appareils d'agrandissement photographiques Expired FR768557A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE768557X 1933-04-01

Publications (1)

Publication Number Publication Date
FR768557A true FR768557A (fr) 1934-08-08

Family

ID=6673748

Family Applications (1)

Application Number Title Priority Date Filing Date
FR768557D Expired FR768557A (fr) 1933-04-01 1934-02-12 Perfectionnements aux appareils d'agrandissement photographiques

Country Status (1)

Country Link
FR (1) FR768557A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741945A (en) * 1952-11-06 1956-04-17 Broms Allan Copying camera assembly
US2772599A (en) * 1950-06-03 1956-12-04 Broms Allan Method of setting the elements of an optical system and projector and copying camera for performing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772599A (en) * 1950-06-03 1956-12-04 Broms Allan Method of setting the elements of an optical system and projector and copying camera for performing the same
US2741945A (en) * 1952-11-06 1956-04-17 Broms Allan Copying camera assembly

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