BE397856A - - Google Patents

Info

Publication number
BE397856A
BE397856A BE397856DA BE397856A BE 397856 A BE397856 A BE 397856A BE 397856D A BE397856D A BE 397856DA BE 397856 A BE397856 A BE 397856A
Authority
BE
Belgium
Prior art keywords
objective
rod
photographic
curved cam
lens
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE397856A publication Critical patent/BE397856A/fr

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)
  • Lens Barrels (AREA)
BE397856D BE397856A (forum.php)

Publications (1)

Publication Number Publication Date
BE397856A true BE397856A (forum.php)

Family

ID=64488

Family Applications (1)

Application Number Title Priority Date Filing Date
BE397856D BE397856A (forum.php)

Country Status (1)

Country Link
BE (1) BE397856A (forum.php)

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