GB2166880B - Full-frame flash illumination system - Google Patents

Full-frame flash illumination system

Info

Publication number
GB2166880B
GB2166880B GB8511054A GB8511054A GB2166880B GB 2166880 B GB2166880 B GB 2166880B GB 8511054 A GB8511054 A GB 8511054A GB 8511054 A GB8511054 A GB 8511054A GB 2166880 B GB2166880 B GB 2166880B
Authority
GB
United Kingdom
Prior art keywords
full
illumination system
flash illumination
frame flash
frame
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
GB8511054A
Other versions
GB2166880A (en
GB8511054D0 (en
Inventor
Robert William Gundlach
James Dunlap Rees
Jerome Edward May
Richard Fred Lehman
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.)
Xerox Corp
Original Assignee
Xerox 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
Priority claimed from US06/608,300 external-priority patent/US4533979A/en
Priority claimed from US06/669,490 external-priority patent/US4571058A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of GB8511054D0 publication Critical patent/GB8511054D0/en
Publication of GB2166880A publication Critical patent/GB2166880A/en
Application granted granted Critical
Publication of GB2166880B publication Critical patent/GB2166880B/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
    • G03G15/04—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
    • G03G15/04045—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers
    • G03G15/04054—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers by LED arrays
    • 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
    • G03G15/045—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 means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
GB8511054A 1984-05-08 1985-05-01 Full-frame flash illumination system Expired GB2166880B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/608,300 US4533979A (en) 1984-05-08 1984-05-08 Full-frame flash illumination system
US06/669,490 US4571058A (en) 1984-11-08 1984-11-08 Flash illumination and optical imaging system

Publications (3)

Publication Number Publication Date
GB8511054D0 GB8511054D0 (en) 1985-06-12
GB2166880A GB2166880A (en) 1986-05-14
GB2166880B true GB2166880B (en) 1988-07-06

Family

ID=27085721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8511054A Expired GB2166880B (en) 1984-05-08 1985-05-01 Full-frame flash illumination system

Country Status (1)

Country Link
GB (1) GB2166880B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2085607B (en) * 1980-10-14 1984-03-21 Ciba Geigy Ag Enlarging from scratched originals

Also Published As

Publication number Publication date
GB2166880A (en) 1986-05-14
GB8511054D0 (en) 1985-06-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010501