GB1402025A - Optical projection system - Google Patents

Optical projection system

Info

Publication number
GB1402025A
GB1402025A GB4236472A GB4236472A GB1402025A GB 1402025 A GB1402025 A GB 1402025A GB 4236472 A GB4236472 A GB 4236472A GB 4236472 A GB4236472 A GB 4236472A GB 1402025 A GB1402025 A GB 1402025A
Authority
GB
United Kingdom
Prior art keywords
carriage
arm
slidable
lens
sept
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
GB4236472A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1402025A publication Critical patent/GB1402025A/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)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

1402025 Projection printing EASTMAN KODAK Co 12 Sept 1972 [13 Sept 19711 42364/72 Heading G2A An image of variable magnification is projected on to a fixed print plane 53 from a transparency 47 carried in a carriage 21 with the aid of a lens system 49 carried in a second carriage 23, the carriages being slidable on a common guide bar 25, being connected by a constant tension spring 27, and being correctly spaced by means of a bellcrank which is pivotally connected to an arm 37 of the lens carriage 23, has one arm slidable within a forked arm 33 of transparency carriage 21 and has the other arm slidable within a suitably shaped cam groove 31. The lens carriage may be driven directly, e.g. by a chain belt drive.
GB4236472A 1971-09-13 1972-09-12 Optical projection system Expired GB1402025A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17974571A 1971-09-13 1971-09-13

Publications (1)

Publication Number Publication Date
GB1402025A true GB1402025A (en) 1975-08-06

Family

ID=22657818

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4236472A Expired GB1402025A (en) 1971-09-13 1972-09-12 Optical projection system

Country Status (6)

Country Link
US (1) US3728019A (en)
CA (1) CA972602A (en)
DE (1) DE2244705A1 (en)
FR (1) FR2153948A5 (en)
GB (1) GB1402025A (en)
IT (1) IT967350B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450175A (en) * 1993-07-27 1995-09-12 Konica Corporation Image forming apparatus having optical means for image magnification change

Families Citing this family (6)

* 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
FR2388300A1 (en) * 1977-04-20 1978-11-17 Thomson Csf OPTICAL PATTERN PROJECTION DEVICE INCLUDING FOCUS OF FOCUS AT CONSTANT GROWTH
US4215922A (en) * 1978-11-01 1980-08-05 Am International, Inc. Method for projecting characters at a selected point size in a photocomposition machine
DE3922512A1 (en) * 1989-07-08 1991-01-17 Kodak Ag DEVICE FOR CONVERTING LIGHT SIGNALS TO VIDEO SIGNALS
KR20030010092A (en) * 2001-07-25 2003-02-05 엘지니꼬동제련 주식회사 concreat brick & block containing copper slag
KR20030080270A (en) * 2002-04-04 2003-10-17 엘지니꼬동제련 주식회사 concrete in contained copper slag

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1399347A (en) * 1920-08-11 1921-12-06 August F Jobke Focusing device
US1677778A (en) * 1922-09-20 1928-07-17 Johannes Robert Carl August Automatic focusing optical-projection apparatus
US1986693A (en) * 1932-02-09 1935-01-01 Firm Uhertype A G Photographic type composing
US2430252A (en) * 1945-05-01 1947-11-04 Simmon Brothers Inc Auto-focus enlarger
US2568762A (en) * 1948-12-08 1951-09-25 Fed Mfg & Engineering Corp Autofocus enlarger
US3213748A (en) * 1961-02-16 1965-10-26 Durst Ag Automatic focusing arrangement for enlarging apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450175A (en) * 1993-07-27 1995-09-12 Konica Corporation Image forming apparatus having optical means for image magnification change

Also Published As

Publication number Publication date
CA972602A (en) 1975-08-12
DE2244705A1 (en) 1973-03-22
US3728019A (en) 1973-04-17
IT967350B (en) 1974-02-28
FR2153948A5 (en) 1973-05-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee