JPS5454648A - Magnification changing method of projecting optical system - Google Patents

Magnification changing method of projecting optical system

Info

Publication number
JPS5454648A
JPS5454648A JP12210777A JP12210777A JPS5454648A JP S5454648 A JPS5454648 A JP S5454648A JP 12210777 A JP12210777 A JP 12210777A JP 12210777 A JP12210777 A JP 12210777A JP S5454648 A JPS5454648 A JP S5454648A
Authority
JP
Japan
Prior art keywords
magnification
lens
formula
optical system
changing method
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
JP12210777A
Other languages
English (en)
Other versions
JPS5832687B2 (ja
Inventor
Masaya Ogawa
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP12210777A priority Critical patent/JPS5832687B2/ja
Priority to US05/946,831 priority patent/US4243312A/en
Priority to DE2844166A priority patent/DE2844166A1/de
Publication of JPS5454648A publication Critical patent/JPS5454648A/ja
Publication of JPS5832687B2 publication Critical patent/JPS5832687B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Lenses (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
JP12210777A 1977-10-11 1977-10-11 投影光学系の変倍方法 Expired JPS5832687B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP12210777A JPS5832687B2 (ja) 1977-10-11 1977-10-11 投影光学系の変倍方法
US05/946,831 US4243312A (en) 1977-10-11 1978-09-28 Electrophotographic copying apparatus
DE2844166A DE2844166A1 (de) 1977-10-11 1978-10-10 Elektrophotographische kopieranlage mit veraenderlicher vergroesserungseinrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12210777A JPS5832687B2 (ja) 1977-10-11 1977-10-11 投影光学系の変倍方法

Publications (2)

Publication Number Publication Date
JPS5454648A true JPS5454648A (en) 1979-05-01
JPS5832687B2 JPS5832687B2 (ja) 1983-07-14

Family

ID=14827804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12210777A Expired JPS5832687B2 (ja) 1977-10-11 1977-10-11 投影光学系の変倍方法

Country Status (1)

Country Link
JP (1) JPS5832687B2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6133038U (ja) * 1984-07-28 1986-02-28 株式会社トプコン 複写機用光学ユニツト

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6133038U (ja) * 1984-07-28 1986-02-28 株式会社トプコン 複写機用光学ユニツト
JPH0453637Y2 (ja) * 1984-07-28 1992-12-16

Also Published As

Publication number Publication date
JPS5832687B2 (ja) 1983-07-14

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