FR821565A - Improvements to autofocus photographic reproduction devices - Google Patents

Improvements to autofocus photographic reproduction devices

Info

Publication number
FR821565A
FR821565A FR821565DA FR821565A FR 821565 A FR821565 A FR 821565A FR 821565D A FR821565D A FR 821565DA FR 821565 A FR821565 A FR 821565A
Authority
FR
France
Prior art keywords
autofocus
reproduction devices
photographic reproduction
photographic
devices
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)
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.)
Bouzard & Fils
Original Assignee
Bouzard & Fils
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 Bouzard & Fils filed Critical Bouzard & Fils
Application granted granted Critical
Publication of FR821565A publication Critical patent/FR821565A/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)
FR821565D 1936-08-14 1936-08-14 Improvements to autofocus photographic reproduction devices Expired FR821565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR821565T 1936-08-14

Publications (1)

Publication Number Publication Date
FR821565A true FR821565A (en) 1937-12-08

Family

ID=9277499

Family Applications (1)

Application Number Title Priority Date Filing Date
FR821565D Expired FR821565A (en) 1936-08-14 1936-08-14 Improvements to autofocus photographic reproduction devices

Country Status (1)

Country Link
FR (1) FR821565A (en)

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