GB1319681A - Electrophotography - Google Patents

Electrophotography

Info

Publication number
GB1319681A
GB1319681A GB2863070A GB2863070A GB1319681A GB 1319681 A GB1319681 A GB 1319681A GB 2863070 A GB2863070 A GB 2863070A GB 2863070 A GB2863070 A GB 2863070A GB 1319681 A GB1319681 A GB 1319681A
Authority
GB
United Kingdom
Prior art keywords
lamp
copying
lamps
june
original
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
GB2863070A
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
Dai Nippon Toryo KK
Original Assignee
Canon Inc
Dai Nippon Toryo KK
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 Canon Inc, Dai Nippon Toryo KK filed Critical Canon Inc
Publication of GB1319681A publication Critical patent/GB1319681A/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
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means
    • G03B27/542—Lamp housings; Illuminating means for copying cameras, reflex exposure lighting
    • 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
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105—Details of unit
    • G03G15/011—Details of unit for exposing
    • 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
    • G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

1319681 Copying lamp CANON KK and DAI NIPPON TOKYO KK 12 June 1970 [12 June 1969] 28630/70 Heading F4R [Also in Divisions G2 and H1] An electrostatic copier comprises a plurality of light sources operable to emit light in different parts of the spectrum respectively. As shown fluorescent lamps 31-34 having reflectors 51-54 are rotatably mounted in a thermostatically controlled air-cooled housing 6 so that a selected lamp can be positioned adjacent a lens 9 to illuminate an original to be copied. The original may be illuminated by a single lamp for monochromatic copying or by each lamp in turn for polychromatic copying. Two sets of lamps may be used. The lighting arrangement may alternatively comprise a single annular lamp coated with different phosphors (Fig. 3A, not shown) or a number of arcuate lamps arranged in a circle (Fig. 36, not shown).
GB2863070A 1969-06-12 1970-06-12 Electrophotography Expired GB1319681A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4659469 1969-06-12

Publications (1)

Publication Number Publication Date
GB1319681A true GB1319681A (en) 1973-06-06

Family

ID=12751609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2863070A Expired GB1319681A (en) 1969-06-12 1970-06-12 Electrophotography

Country Status (2)

Country Link
US (1) US3682539A (en)
GB (1) GB1319681A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940140A (en) * 1972-08-18 1974-04-15
US3782821A (en) * 1972-11-10 1974-01-01 Raymond Lee Organization Inc Photographic enlarger
US4099865A (en) * 1977-03-23 1978-07-11 Knippenberg Gerald V Method and apparatus for making color separations from a color transparency
FR2479996A1 (en) * 1980-04-02 1981-10-09 Chamoux Jean Pierre AUTHENTICABLE REPRODUCTION DEVICE OF ORIGINAL BASE DOCUMENT
US5057861A (en) * 1987-11-28 1991-10-15 Dainippon Screen Mfg. Co. Ltd. Color image recorder and image projector useful therefor
US5295003A (en) * 1991-03-13 1994-03-15 Lee Aldric K Color conversion system for monochromatic optical scanner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747459A (en) * 1948-12-02 1956-05-29 George L Morrison Photographic apparatus
GB983044A (en) * 1961-07-27 1965-02-10 Arthur Leonard Sparks Improvements in lamp housings for use in connection with photographic copying apparatus
US3345509A (en) * 1964-11-23 1967-10-03 William C Dauser Multi-color lamp

Also Published As

Publication number Publication date
DE2029133A1 (en) 1971-02-11
DE2029133B2 (en) 1976-07-15
US3682539A (en) 1972-08-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee