DE3882225D1 - Elektrophotographisches kopiergeraet mit selbstspulendem belichtungsvorhang. - Google Patents

Elektrophotographisches kopiergeraet mit selbstspulendem belichtungsvorhang.

Info

Publication number
DE3882225D1
DE3882225D1 DE8888910202T DE3882225T DE3882225D1 DE 3882225 D1 DE3882225 D1 DE 3882225D1 DE 8888910202 T DE8888910202 T DE 8888910202T DE 3882225 T DE3882225 T DE 3882225T DE 3882225 D1 DE3882225 D1 DE 3882225D1
Authority
DE
Germany
Prior art keywords
reeling
self
electrophotographic copier
curtain
exposure
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 - Fee Related
Application number
DE8888910202T
Other languages
English (en)
Other versions
DE3882225T2 (de
Inventor
Gabriel Hamidian
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.)
NexPress Solutions LLC
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
Application granted granted Critical
Publication of DE3882225D1 publication Critical patent/DE3882225D1/de
Publication of DE3882225T2 publication Critical patent/DE3882225T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G03G15/04—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
    • 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
    • G03G15/22—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
DE88910202T 1987-10-15 1988-10-05 Elektrophotographisches kopiergerät mit selbstspulendem belichtungsvorhang. Expired - Fee Related DE3882225T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/108,603 US4801969A (en) 1987-10-15 1987-10-15 Self-coiling exposure shade

Publications (2)

Publication Number Publication Date
DE3882225D1 true DE3882225D1 (de) 1993-08-12
DE3882225T2 DE3882225T2 (de) 1994-02-10

Family

ID=22323109

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88910202T Expired - Fee Related DE3882225T2 (de) 1987-10-15 1988-10-05 Elektrophotographisches kopiergerät mit selbstspulendem belichtungsvorhang.

Country Status (5)

Country Link
US (1) US4801969A (de)
EP (1) EP0348455B1 (de)
JP (1) JPH02501682A (de)
DE (1) DE3882225T2 (de)
WO (1) WO1989003547A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4987441A (en) * 1988-06-06 1991-01-22 Polaroid Corporation Compact hand-held apparatus for copying an illuminated image
US5016047A (en) * 1990-07-05 1991-05-14 Nuarc Company, Inc. Light-modifying apparatus for exposure devices
EP0472493B1 (de) * 1990-08-17 1994-12-14 Gretag Imaging Ag Belichtungssteuerungsverfahren und fotografisches Kopiergerät
US5946532A (en) * 1995-04-20 1999-08-31 Asahi Kogaku Kogyo Kabushiki Kaisha Variable magnification optical system with light shielding mechanism

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807856A (en) * 1969-09-26 1974-04-30 Scm Corp Illumination system for a photocopying machine
US3677633A (en) * 1969-12-31 1972-07-18 Xerox Corp Portable document abstractor
JPS5036983B1 (de) * 1970-12-30 1975-11-28
US3724944A (en) * 1971-10-01 1973-04-03 Ricoh Kk Light intercepting screen winding and paying-out device for copying machines
JPS5437502B2 (de) * 1973-08-06 1979-11-15
US4050812A (en) * 1975-04-15 1977-09-27 Ricoh Co., Ltd. Light shield curtain assembly for reciprocating optical scanning head
JPS51148430A (en) * 1975-06-16 1976-12-20 Hitachi Ltd Lens automatic exchanger
US4129373A (en) * 1976-09-09 1978-12-12 Ricoh Company, Ltd. Electrophotographic apparatus
JPS5832685B2 (ja) * 1977-12-02 1983-07-14 旭光学工業株式会社 低倍率可変画角レンズ系
JPS5850326B2 (ja) * 1977-12-02 1983-11-10 旭光学工業株式会社 歪曲収差の小さなズ−ムレンズ
JPS55120065A (en) * 1979-03-09 1980-09-16 Ricoh Co Ltd Electrophotographic copier
JPS5642246A (en) * 1979-09-14 1981-04-20 Ricoh Co Ltd Exposing unit in electrophotographic copier
JPS6042451B2 (ja) * 1981-12-07 1985-09-21 マミヤ光機株式会社 広角ズ−ムレンズ
JPS58132209A (ja) * 1982-02-01 1983-08-06 Canon Inc 広角ズ−ムレンズ
IT1212977B (it) * 1983-02-10 1989-12-07 Olivetti & Co Spa Macchina copiatrice elettrofotogra fica
JPS6055310A (ja) * 1983-09-06 1985-03-30 Asahi Optical Co Ltd 可変焦点距離レンズ光学系における焦点調節方法
JPS61231517A (ja) * 1985-04-05 1986-10-15 Canon Inc 可変焦点距離レンズ
JPS61240217A (ja) * 1985-04-17 1986-10-25 Asahi Optical Co Ltd コンパクトな広角ズ−ムレンズ
JPS6250718A (ja) * 1985-08-29 1987-03-05 Nippon Kogaku Kk <Nikon> ２群構成ズ−ムレンズ
JPH0792546B2 (ja) * 1986-07-18 1995-10-09 キヤノン株式会社 小型のズ−ムレンズ
JPS63210907A (ja) * 1987-02-27 1988-09-01 Asahi Optical Co Ltd コンパクトで明るい広角ズ−ムレンズ

Also Published As

Publication number Publication date
WO1989003547A1 (en) 1989-04-20
DE3882225T2 (de) 1994-02-10
EP0348455B1 (de) 1993-07-07
EP0348455A1 (de) 1990-01-03
US4801969A (en) 1989-01-31
JPH02501682A (ja) 1990-06-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NEXPRESS SOLUTIONS LLC, ROCHESTER, N.Y., US

8328 Change in the person/name/address of the agent

Free format text: FEY, H., DIPL.-PHYS., PAT.-ANW., 69115 HEIDELBERG

8339 Ceased/non-payment of the annual fee