IT969725B - Dispositivo per il cambio degli obiettivi in un apparecchio di ingrandimento - Google Patents

Dispositivo per il cambio degli obiettivi in un apparecchio di ingrandimento

Info

Publication number
IT969725B
IT969725B IT30704/72A IT3070472A IT969725B IT 969725 B IT969725 B IT 969725B IT 30704/72 A IT30704/72 A IT 30704/72A IT 3070472 A IT3070472 A IT 3070472A IT 969725 B IT969725 B IT 969725B
Authority
IT
Italy
Prior art keywords
objectives
changing
magnifying
magnifying device
Prior art date
Application number
IT30704/72A
Other languages
English (en)
Inventor
W Pramstraller
H Stampfer
Original Assignee
Durst Ag
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 Durst Ag filed Critical Durst Ag
Priority to IT30704/72A priority Critical patent/IT969725B/it
Priority to DE19732346915 priority patent/DE2346915A1/de
Priority to US00407163A priority patent/US3843254A/en
Application granted granted Critical
Publication of IT969725B publication Critical patent/IT969725B/it

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
    • G03B27/40—Means for automatic focusing therefor by mechanical connections, e.g. by cam, by linkage adapted for use with lenses of different focal length

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lens Barrels (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Projection-Type Copiers In General (AREA)
IT30704/72A 1972-10-20 1972-10-20 Dispositivo per il cambio degli obiettivi in un apparecchio di ingrandimento IT969725B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT30704/72A IT969725B (it) 1972-10-20 1972-10-20 Dispositivo per il cambio degli obiettivi in un apparecchio di ingrandimento
DE19732346915 DE2346915A1 (de) 1972-10-20 1973-09-18 Vergroesserungsgeraet mit objektiven unterschiedlicher brennweite und automatischer scharfeinstellung
US00407163A US3843254A (en) 1972-10-20 1973-10-17 Enlarging apparatus with lenses of varying focal length and automatic focus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT30704/72A IT969725B (it) 1972-10-20 1972-10-20 Dispositivo per il cambio degli obiettivi in un apparecchio di ingrandimento

Publications (1)

Publication Number Publication Date
IT969725B true IT969725B (it) 1974-04-10

Family

ID=11231181

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30704/72A IT969725B (it) 1972-10-20 1972-10-20 Dispositivo per il cambio degli obiettivi in un apparecchio di ingrandimento

Country Status (3)

Country Link
US (1) US3843254A (it)
DE (1) DE2346915A1 (it)
IT (1) IT969725B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4135794A (en) * 1975-05-12 1979-01-23 Addressograph-Multigraph Corporation Photocomposition machine
JPS544983Y2 (it) * 1975-11-21 1979-03-03
US4215922A (en) * 1978-11-01 1980-08-05 Am International, Inc. Method for projecting characters at a selected point size in a photocomposition machine
US4330179A (en) * 1979-05-17 1982-05-18 Konishiroku Photo Industry Co., Ltd. Variable magnification projection device

Also Published As

Publication number Publication date
DE2346915A1 (de) 1974-04-25
US3843254A (en) 1974-10-22

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