GB2106658B - Variable magnification photocopying - Google Patents

Variable magnification photocopying

Info

Publication number
GB2106658B
GB2106658B GB08226898A GB8226898A GB2106658B GB 2106658 B GB2106658 B GB 2106658B GB 08226898 A GB08226898 A GB 08226898A GB 8226898 A GB8226898 A GB 8226898A GB 2106658 B GB2106658 B GB 2106658B
Authority
GB
United Kingdom
Prior art keywords
photocopying
variable magnification
magnification
variable
magnification photocopying
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
GB08226898A
Other languages
English (en)
Other versions
GB2106658A (en
Inventor
Hisao Iwanade
Shinyu Ikeda
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of GB2106658A publication Critical patent/GB2106658A/en
Application granted granted Critical
Publication of GB2106658B publication Critical patent/GB2106658B/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
    • G03G15/04—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)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Lens Barrels (AREA)
GB08226898A 1981-09-21 1982-09-21 Variable magnification photocopying Expired GB2106658B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14896881A JPS5849964A (ja) 1981-09-21 1981-09-21 レンズ系を利用した複写機における数値制御モ−タ−の制御機構

Publications (2)

Publication Number Publication Date
GB2106658A GB2106658A (en) 1983-04-13
GB2106658B true GB2106658B (en) 1985-10-09

Family

ID=15464688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08226898A Expired GB2106658B (en) 1981-09-21 1982-09-21 Variable magnification photocopying

Country Status (3)

Country Link
JP (1) JPS5849964A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3234933A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2106658B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255342A (ja) 1985-05-09 1986-11-13 Fuji Photo Film Co Ltd ハロゲン化銀カラ−写真感光材料
JPH06105346B2 (ja) 1986-11-07 1994-12-21 富士写真フイルム株式会社 ハロゲン化銀カラ−写真感光材料の処理方法
DE69629982T2 (de) * 1995-06-30 2004-07-22 Eastman Kodak Co. Zoomobjektiv ###

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873189A (en) * 1972-06-23 1975-03-25 Rank Xerox Ltd Adjustable-position optical system
JPS52115217A (en) * 1976-03-23 1977-09-27 Canon Inc Operation of variable multiplication optical system
JPS5397418A (en) * 1977-02-07 1978-08-25 Dainippon Screen Mfg Method of copying machine camera*s automatic focusing and its equipment
US4272187A (en) * 1979-12-17 1981-06-09 International Business Machines Corporation Automatic alignment of optical elements in an electrophotographic apparatus

Also Published As

Publication number Publication date
DE3234933C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-10-15
JPS5849964A (ja) 1983-03-24
DE3234933A1 (de) 1983-04-07
GB2106658A (en) 1983-04-13

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000921