CH612016A5 - Photographic copier for which the ratio of the image size to the object size is adjustable - Google Patents

Photographic copier for which the ratio of the image size to the object size is adjustable

Info

Publication number
CH612016A5
CH612016A5 CH998176A CH998176A CH612016A5 CH 612016 A5 CH612016 A5 CH 612016A5 CH 998176 A CH998176 A CH 998176A CH 998176 A CH998176 A CH 998176A CH 612016 A5 CH612016 A5 CH 612016A5
Authority
CH
Switzerland
Prior art keywords
holder
bridge
ratio
opposite corners
size
Prior art date
Application number
CH998176A
Other languages
English (en)
Inventor
Georges Edouard Armelin
Original Assignee
Controle & Automation
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 Controle & Automation filed Critical Controle & Automation
Publication of CH612016A5 publication Critical patent/CH612016A5/xx

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lens Barrels (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
CH998176A 1975-08-07 1976-08-05 Photographic copier for which the ratio of the image size to the object size is adjustable CH612016A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7524622A FR2320571A1 (fr) 1975-08-07 1975-08-07 Perfectionnements apportes aux appareils de reproduction photographique a rapport image/objet reglable

Publications (1)

Publication Number Publication Date
CH612016A5 true CH612016A5 (en) 1979-06-29

Family

ID=9158879

Family Applications (1)

Application Number Title Priority Date Filing Date
CH998176A CH612016A5 (en) 1975-08-07 1976-08-05 Photographic copier for which the ratio of the image size to the object size is adjustable

Country Status (4)

Country Link
CH (1) CH612016A5 (enExample)
DE (1) DE2633708A1 (enExample)
FR (1) FR2320571A1 (enExample)
IT (1) IT1066935B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6029099B2 (ja) * 1980-02-25 1985-07-09 大日本スクリ−ン製造株式会社 投影装置の常焦点投影倍率変更方法及びその装置
CH658325A5 (de) * 1982-01-21 1986-10-31 Rudolf Boehme Vergroesserungsgeraet mit stetiger scharfeinstellung bei veraenderung der bildgroesse durch ein, ueber eine brueckenschaltung und einen verstaerker, gesteuertes objektiv.

Also Published As

Publication number Publication date
FR2320571A1 (fr) 1977-03-04
FR2320571B1 (enExample) 1978-12-01
DE2633708A1 (de) 1977-02-17
IT1066935B (it) 1985-03-12

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased