JPS5267321A - Variable magnification optical instrument - Google Patents

Variable magnification optical instrument

Info

Publication number
JPS5267321A
JPS5267321A JP14373175A JP14373175A JPS5267321A JP S5267321 A JPS5267321 A JP S5267321A JP 14373175 A JP14373175 A JP 14373175A JP 14373175 A JP14373175 A JP 14373175A JP S5267321 A JPS5267321 A JP S5267321A
Authority
JP
Japan
Prior art keywords
variable magnification
magnification optical
optical instrument
forerunning
fore
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.)
Granted
Application number
JP14373175A
Other languages
Japanese (ja)
Other versions
JPS5636425B2 (en
Inventor
Akiyoshi Torikai
Masa Sato
Hidetoshi Tanaka
Toshiro Kasamura
Masaji Suda
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
Original Assignee
Canon Inc
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 filed Critical Canon Inc
Priority to JP14373175A priority Critical patent/JPS5267321A/en
Priority to GB4904976A priority patent/GB1571095A/en
Priority to CA266,887A priority patent/CA1105072A/en
Priority to FR7636086A priority patent/FR2334129A1/en
Priority to DE19762654250 priority patent/DE2654250C2/en
Publication of JPS5267321A publication Critical patent/JPS5267321A/en
Publication of JPS5636425B2 publication Critical patent/JPS5636425B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To prevent a partial cancel of an image resulting from the forerunning in the scanning type electrophotographic copying machine by setting the fore-running distance in accordance with the magnification rate.
JP14373175A 1975-12-01 1975-12-01 Variable magnification optical instrument Granted JPS5267321A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP14373175A JPS5267321A (en) 1975-12-01 1975-12-01 Variable magnification optical instrument
GB4904976A GB1571095A (en) 1975-12-01 1976-11-24 Variable magnification photocopier
CA266,887A CA1105072A (en) 1975-12-01 1976-11-30 Variable magnification optical mechanism
FR7636086A FR2334129A1 (en) 1975-12-01 1976-11-30 MECHANISM FOR VARIABLE GRANDING OPTICAL SYSTEMS
DE19762654250 DE2654250C2 (en) 1975-12-01 1976-11-30 Device for scanning an original

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14373175A JPS5267321A (en) 1975-12-01 1975-12-01 Variable magnification optical instrument

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP15279180A Division JPS5928896B2 (en) 1980-10-30 1980-10-30 variable magnification copying device

Publications (2)

Publication Number Publication Date
JPS5267321A true JPS5267321A (en) 1977-06-03
JPS5636425B2 JPS5636425B2 (en) 1981-08-24

Family

ID=15345687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14373175A Granted JPS5267321A (en) 1975-12-01 1975-12-01 Variable magnification optical instrument

Country Status (1)

Country Link
JP (1) JPS5267321A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5363028A (en) * 1976-09-07 1978-06-06 Ibm Apparatus for focusing by continuously changing magnification for electrostatic copier
JPS55129363A (en) * 1980-01-30 1980-10-07 Minolta Camera Co Ltd Copying paper conveyance controller in variable magnification type copier
JPS5669666A (en) * 1979-11-12 1981-06-11 Konishiroku Photo Ind Co Ltd Copying machine
JPS59228237A (en) * 1983-06-10 1984-12-21 Konishiroku Photo Ind Co Ltd Variable magnification exposure device of copying machine
JPS6011828A (en) * 1983-06-30 1985-01-22 Matsushita Electric Ind Co Ltd Copy magnification conversion device
JPS6011829A (en) * 1983-06-30 1985-01-22 Matsushita Electric Ind Co Ltd Copying magnification converter
WO1985004495A1 (en) * 1984-04-02 1985-10-10 Mita Industrial Co., Ltd. Method of controlling an exposing apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5363028A (en) * 1976-09-07 1978-06-06 Ibm Apparatus for focusing by continuously changing magnification for electrostatic copier
JPS5669666A (en) * 1979-11-12 1981-06-11 Konishiroku Photo Ind Co Ltd Copying machine
JPS55129363A (en) * 1980-01-30 1980-10-07 Minolta Camera Co Ltd Copying paper conveyance controller in variable magnification type copier
JPS59228237A (en) * 1983-06-10 1984-12-21 Konishiroku Photo Ind Co Ltd Variable magnification exposure device of copying machine
JPS6011828A (en) * 1983-06-30 1985-01-22 Matsushita Electric Ind Co Ltd Copy magnification conversion device
JPS6011829A (en) * 1983-06-30 1985-01-22 Matsushita Electric Ind Co Ltd Copying magnification converter
WO1985004495A1 (en) * 1984-04-02 1985-10-10 Mita Industrial Co., Ltd. Method of controlling an exposing apparatus

Also Published As

Publication number Publication date
JPS5636425B2 (en) 1981-08-24

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