GB2042758B - Projection device comprising a bar lens - Google Patents

Projection device comprising a bar lens

Info

Publication number
GB2042758B
GB2042758B GB7941498A GB7941498A GB2042758B GB 2042758 B GB2042758 B GB 2042758B GB 7941498 A GB7941498 A GB 7941498A GB 7941498 A GB7941498 A GB 7941498A GB 2042758 B GB2042758 B GB 2042758B
Authority
GB
United Kingdom
Prior art keywords
projection device
bar lens
lens
bar
projection
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
GB7941498A
Other versions
GB2042758A (en
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.)
Canon Inc
Original Assignee
Canon Inc
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
Priority claimed from JP14867578A external-priority patent/JPS5574509A/en
Priority claimed from JP14867478A external-priority patent/JPS5574508A/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of GB2042758A publication Critical patent/GB2042758A/en
Application granted granted Critical
Publication of GB2042758B publication Critical patent/GB2042758B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
    • 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
    • G03B27/52—Details
    • G03B27/522—Projection optics
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/041—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with variable magnification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
GB7941498A 1978-12-01 1979-11-30 Projection device comprising a bar lens Expired GB2042758B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14867578A JPS5574509A (en) 1978-12-01 1978-12-01 Projector
JP14867478A JPS5574508A (en) 1978-12-01 1978-12-01 Projector

Publications (2)

Publication Number Publication Date
GB2042758A GB2042758A (en) 1980-09-24
GB2042758B true GB2042758B (en) 1983-05-11

Family

ID=26478798

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7941498A Expired GB2042758B (en) 1978-12-01 1979-11-30 Projection device comprising a bar lens

Country Status (3)

Country Link
DE (1) DE2948348A1 (en)
FR (1) FR2443077A1 (en)
GB (1) GB2042758B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335305A (en) * 1980-08-18 1982-06-15 Xerox Corporation Twisting geometry scanner utilizing staggered lens array
DE3104545A1 (en) * 1981-02-10 1982-10-21 Bernd 7500 Karlsruhe Schlue OPTICAL DEVICE FOR LARGE ANGLE AND IMAGE SCALE
DE8302567U1 (en) * 1982-02-01 1993-07-22 Nippon Sheet Glass Co., Ltd., Osaka Plate lens
JPS5934514A (en) * 1982-08-23 1984-02-24 Ricoh Co Ltd Image formation optical device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH460381A (en) * 1966-07-29 1968-07-31 Rank Xerox Ltd Optical imaging system
US3584952A (en) * 1967-11-17 1971-06-15 Xerox Corp Lens strip optical scanning system
DE1298407B (en) * 1967-11-27 1969-06-26 Agfa Gevaert Ag Exposure arrangement for copiers
FR1592947A (en) * 1967-11-27 1970-05-19
US3694076A (en) * 1970-08-31 1972-09-26 Paul E Weber Multiple lenslet copier
US3836249A (en) * 1972-09-13 1974-09-17 Bell & Howell Co Optical imaging system of short focal lens
DE2813763A1 (en) * 1977-03-31 1978-10-12 Canon Kk PROJECTION DEVICE
JPS5454057A (en) * 1977-10-07 1979-04-27 Canon Inc Projecting apparatus

Also Published As

Publication number Publication date
FR2443077B1 (en) 1983-12-16
GB2042758A (en) 1980-09-24
DE2948348C2 (en) 1991-05-08
FR2443077A1 (en) 1980-06-27
DE2948348A1 (en) 1980-06-04

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19991129