JPS52115217A - Operation of variable multiplication optical system - Google Patents

Operation of variable multiplication optical system

Info

Publication number
JPS52115217A
JPS52115217A JP3186076A JP3186076A JPS52115217A JP S52115217 A JPS52115217 A JP S52115217A JP 3186076 A JP3186076 A JP 3186076A JP 3186076 A JP3186076 A JP 3186076A JP S52115217 A JPS52115217 A JP S52115217A
Authority
JP
Japan
Prior art keywords
optical system
variable multiplication
multiplication optical
variable
backlash
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.)
Pending
Application number
JP3186076A
Other languages
Japanese (ja)
Inventor
Masa Sato
Hidetoshi Tanaka
Toshiro Kasamura
Masaji Suda
Akiyoshi Torikai
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 JP3186076A priority Critical patent/JPS52115217A/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 JPS52115217A publication Critical patent/JPS52115217A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To attain a precise variable multiplication free from the influence of backlash of shiftable mechanism in the electrophotographic copier by rendering the variable multiplication optical system to be brought to a standstill during its shift time from the specified direction.
JP3186076A 1975-12-01 1976-03-23 Operation of variable multiplication optical system Pending JPS52115217A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP3186076A JPS52115217A (en) 1976-03-23 1976-03-23 Operation of variable multiplication optical system
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
JP3186076A JPS52115217A (en) 1976-03-23 1976-03-23 Operation of variable multiplication optical system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP58037691A Division JPS5910938A (en) 1983-03-08 1983-03-08 Actuating method of variable magnification picture forming device

Publications (1)

Publication Number Publication Date
JPS52115217A true JPS52115217A (en) 1977-09-27

Family

ID=12342793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3186076A Pending JPS52115217A (en) 1975-12-01 1976-03-23 Operation of variable multiplication optical system

Country Status (1)

Country Link
JP (1) JPS52115217A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57150845U (en) * 1981-03-19 1982-09-21
JPS57173858A (en) * 1981-04-20 1982-10-26 Fuji Xerox Co Ltd Scale factor adjusting device of copier
JPS5826047U (en) * 1981-08-11 1983-02-19 株式会社東芝 Optical system drive device for copying machines, etc.
JPS5849964A (en) * 1981-09-21 1983-03-24 Asahi Optical Co Ltd Mechanism for controlling numerical control motor in copying machine using lens system
JPS60156052A (en) * 1984-01-25 1985-08-16 Canon Inc Variable power projecting device of original image
JPS6161538U (en) * 1984-09-27 1986-04-25
JPS61172133A (en) * 1985-01-28 1986-08-02 Ricoh Co Ltd Copying machine with zoom variable power
JPS62265632A (en) * 1987-01-22 1987-11-18 Asahi Optical Co Ltd Driving device for zoom lens system in lens shutter
JPS6349511U (en) * 1986-09-19 1988-04-04
US4908647A (en) * 1988-05-06 1990-03-13 Minolta Camera Kabushiki Kaisha Lens driving device
US5475456A (en) * 1986-05-12 1995-12-12 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens drive system for lens shutter type of camera

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6239394Y2 (en) * 1981-03-19 1987-10-07
JPS57150845U (en) * 1981-03-19 1982-09-21
JPS57173858A (en) * 1981-04-20 1982-10-26 Fuji Xerox Co Ltd Scale factor adjusting device of copier
JPH0119570B2 (en) * 1981-04-20 1989-04-12 Fuji Xerox Co Ltd
JPS5826047U (en) * 1981-08-11 1983-02-19 株式会社東芝 Optical system drive device for copying machines, etc.
JPH0317312Y2 (en) * 1981-08-11 1991-04-12
JPS5849964A (en) * 1981-09-21 1983-03-24 Asahi Optical Co Ltd Mechanism for controlling numerical control motor in copying machine using lens system
JPS60156052A (en) * 1984-01-25 1985-08-16 Canon Inc Variable power projecting device of original image
JPS6161538U (en) * 1984-09-27 1986-04-25
JPS61172133A (en) * 1985-01-28 1986-08-02 Ricoh Co Ltd Copying machine with zoom variable power
US5475456A (en) * 1986-05-12 1995-12-12 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens drive system for lens shutter type of camera
US5598240A (en) * 1986-05-12 1997-01-28 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens drive system for lens shutter type of camera
US5740476A (en) * 1986-05-12 1998-04-14 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens drive system for lens shutter type of camera
US5897227A (en) * 1986-05-12 1999-04-27 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens drive system for lens shutter type of camera
US6094535A (en) * 1986-05-12 2000-07-25 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens drive system for lens shutter type of camera
JPS6349511U (en) * 1986-09-19 1988-04-04
JPS62265632A (en) * 1987-01-22 1987-11-18 Asahi Optical Co Ltd Driving device for zoom lens system in lens shutter
US4908647A (en) * 1988-05-06 1990-03-13 Minolta Camera Kabushiki Kaisha Lens driving device

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