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GB1405058A - Document copying apparatus - Google Patents

Document copying apparatus

Info

Publication number
GB1405058A
GB1405058A GB2582073A GB2582073A GB1405058A GB 1405058 A GB1405058 A GB 1405058A GB 2582073 A GB2582073 A GB 2582073A GB 2582073 A GB2582073 A GB 2582073A GB 1405058 A GB1405058 A GB 1405058A
Authority
GB
United Kingdom
Prior art keywords
reflector
stationary
scanning
line
carriage
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
GB2582073A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1405058A publication Critical patent/GB1405058A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/28—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning
    • G03G15/30—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning in which projection is formed on a drum
    • 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
    • G03B27/525—Projection optics for slit exposure
    • G03B27/526—Projection optics for slit exposure in which the projection optics move

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

1405058 Line-by-line copying INTERNATIONAL BUSINESS MACHINES CORP 30 May 1973 [19 June 1972] 25820/73 Heading G2A In line-by-line copying on an electrophotographic drum, a stationary original is scanned by at least one band of light produced from a point source (having an intensifying and directing reflector). A stationary paraboloid reflector may reflect light from a stationary lamp 69 on to a single scanning parabolic reflector, Fig. 2a, or a pair of scanning parabolic reflectors 64 and 66, Fig. 2b; alternatively, the paraboloid reflector may be dispensed with and a scanning lamp 102 and parabolic/elliptical reflector 106 may be employed, Fig. 4b. A mask may be situated between reflectors 65 and 67. A plane mirror (71), Fig. 1 (not shown), is carried on the same carriage as the scanning reflector. A pair of compensating plane mirrors (73 and 75) are carried on a second carriage (moving at half the speed of the first). The first carriage is driven by a capstan in synchronism with the rotation of the drum. The optical system also comprises a lens (56), stationary plane mirror (77) and slit (57).
GB2582073A 1972-06-19 1973-05-30 Document copying apparatus Expired GB1405058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26409372A 1972-06-19 1972-06-19

Publications (1)

Publication Number Publication Date
GB1405058A true GB1405058A (en) 1975-09-03

Family

ID=23004542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2582073A Expired GB1405058A (en) 1972-06-19 1973-05-30 Document copying apparatus

Country Status (7)

Country Link
US (1) US3758774A (en)
JP (1) JPS5341976B2 (en)
CA (1) CA996083A (en)
DE (1) DE2324890C2 (en)
FR (1) FR2190284A5 (en)
GB (1) GB1405058A (en)
IT (1) IT981509B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5123724A (en) * 1974-08-06 1976-02-25 Ricoh Kk Fukushakitoniokeru suritsutoshomeisochi
DE2910280C2 (en) * 1978-03-18 1993-10-28 Canon Kk Optical imaging systems
US4345834A (en) * 1978-11-02 1982-08-24 Mita Industrial Company Limited Transfer type electrostatic copying apparatus
CA1127230A (en) * 1978-11-09 1982-07-06 Benzion Landa Stationary light source electrophotographic copier
US4330196A (en) * 1979-02-22 1982-05-18 Matsushita Electric Industrial Co., Ltd. Electrophotographic copying apparatus
US4459618A (en) * 1979-09-12 1984-07-10 The Mead Corporation Line source illuminator
US4473865A (en) * 1979-11-09 1984-09-25 Savin Corporation Stationary light source electrophotographic copier
US5010366A (en) * 1989-06-15 1991-04-23 Eastman Kodak Company Slide transparency projector apparatus for use with an electrophotographic reproduction machine
US5287147A (en) * 1991-01-25 1994-02-15 Canon Kabushiki Kaisha Original scanning apparatus with fixed light source
US5255116A (en) * 1991-02-18 1993-10-19 Canon Kabushiki Kaisha Original scanning apparatus
US5179413A (en) * 1992-02-05 1993-01-12 Eastman Kodak Company System for illuminating a linear zone which reduces the effect of light retroflected from outside the zone on the illumination
US5812246A (en) * 1995-03-02 1998-09-22 Agfa-Gevaert N.V. Photographic contact printing device
US6385371B1 (en) * 2000-04-03 2002-05-07 Cogent Light Technologies, Inc. Optical system including coupling for transmitting light between a single fiber light guide and multiple single fiber light guides
JP2007290233A (en) * 2006-04-25 2007-11-08 Ushio Inc Light irradiation device and inkjet printer
JP4898725B2 (en) * 2008-03-07 2012-03-21 日本特殊陶業株式会社 Hydrogen separator
US9857056B2 (en) * 2012-03-08 2018-01-02 Triplet Music Products Inc. Uniform lighting system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2252246A (en) * 1941-08-12 Optical system
US247589A (en) * 1881-09-27 Reflector
CA575449A (en) * 1959-05-05 International Business Machines Corporation Optical unit for use in a record controlled machine
CH95999A (en) * 1921-05-14 1922-09-01 Frei Karl Device for transilluminating photographic negatives.
DE431813C (en) * 1924-05-28 1926-07-21 Oskar Valdemar Rasmussen Lighting device for photographic playback cameras
US2206169A (en) * 1937-09-30 1940-07-02 Zeiss Carl Fa Light modulating system
US3520586A (en) * 1966-06-20 1970-07-14 Ampex Entrant beam optical scanner
US3492474A (en) * 1966-12-02 1970-01-27 Koito Mfg Co Ltd Reflector with compound curvature reflecting surface
DE1278219B (en) * 1967-04-28 1968-09-19 Zindler Lumoprint Kg Incident light exposure device
US3594081A (en) * 1968-11-04 1971-07-20 Werner Tschink Adjustable illuminating device
US3694070A (en) * 1970-08-24 1972-09-26 Ibm Copying system featuring scanning illumination elements

Also Published As

Publication number Publication date
CA996083A (en) 1976-08-31
JPS4953052A (en) 1974-05-23
JPS5341976B2 (en) 1978-11-08
DE2324890C2 (en) 1982-05-06
IT981509B (en) 1974-10-10
DE2324890A1 (en) 1974-01-17
FR2190284A5 (en) 1974-01-25
US3758774A (en) 1973-09-11

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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

Effective date: 19920530