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JPS5633670A - Copying machine having reducing copy function - Google Patents

Copying machine having reducing copy function

Info

Publication number
JPS5633670A
JPS5633670A JP10864279A JP10864279A JPS5633670A JP S5633670 A JPS5633670 A JP S5633670A JP 10864279 A JP10864279 A JP 10864279A JP 10864279 A JP10864279 A JP 10864279A JP S5633670 A JPS5633670 A JP S5633670A
Authority
JP
Japan
Prior art keywords
lens
light axis
mirror lens
original
reducing
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
JP10864279A
Other languages
Japanese (ja)
Inventor
Hiroyuki Miyake
Seiji Sagara
Kazuo Kagiura
Nobukazu Sasaki
Takaharu Yonemori
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 JP10864279A priority Critical patent/JPS5633670A/en
Priority to DE19803022953 priority patent/DE3022953A1/en
Publication of JPS5633670A publication Critical patent/JPS5633670A/en
Priority to US06/405,307 priority patent/US4453824A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To enable the selection of magnification of three types or more, and compact and easy adjustment with reducing function, by locating the light axis of in- mirror lens to the original abliquely. CONSTITUTION:The light axis of the in-mirror lens 4 having focal length (f) is located to the surface of the original platen 1 with an angle PSI. At the copy of the unmagnification, the in-mirror lens 4 is located so that the incident angle of the main light from the original is theta. Furhter, in the case of reducing copy with ratio gamma, the in-mirror lens 4 is displaced by l=(1-gamma)f toward the lens light axis and by equation I orthogonal to the lens light axis. Thus, the selection of three or more magnification is possible, sufficient redueing function is given, and desk top type small-sized machine can be realized.
JP10864279A 1979-06-22 1979-08-28 Copying machine having reducing copy function Pending JPS5633670A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP10864279A JPS5633670A (en) 1979-08-28 1979-08-28 Copying machine having reducing copy function
DE19803022953 DE3022953A1 (en) 1979-06-22 1980-06-19 COPIER WITH CHANGEABLE MAGNIFICATION
US06/405,307 US4453824A (en) 1979-06-22 1982-08-04 Variable magnification copying apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10864279A JPS5633670A (en) 1979-08-28 1979-08-28 Copying machine having reducing copy function

Publications (1)

Publication Number Publication Date
JPS5633670A true JPS5633670A (en) 1981-04-04

Family

ID=14489966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10864279A Pending JPS5633670A (en) 1979-06-22 1979-08-28 Copying machine having reducing copy function

Country Status (1)

Country Link
JP (1) JPS5633670A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641957A (en) * 1984-05-25 1987-02-10 Minolta Camera Kabushiki Kaisha Optical member drive system for copying machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641957A (en) * 1984-05-25 1987-02-10 Minolta Camera Kabushiki Kaisha Optical member drive system for copying machine

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