JPS5745568A - Electrophotographic copier - Google Patents

Electrophotographic copier

Info

Publication number
JPS5745568A
JPS5745568A JP12078880A JP12078880A JPS5745568A JP S5745568 A JPS5745568 A JP S5745568A JP 12078880 A JP12078880 A JP 12078880A JP 12078880 A JP12078880 A JP 12078880A JP S5745568 A JPS5745568 A JP S5745568A
Authority
JP
Japan
Prior art keywords
axis direction
optical
image
variable magnification
axis
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
JP12078880A
Other languages
Japanese (ja)
Inventor
Tatsuo Hirono
Toshio Watanabe
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP12078880A priority Critical patent/JPS5745568A/en
Publication of JPS5745568A publication Critical patent/JPS5745568A/en
Pending 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)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To enhance space efficiency and permit variable magnificatio as well by constituting an imagery optical system by combining refractive index focusing type slab-shaped optical waveguides having variable magnification characteristics respectively in an x-axis direction and a y-axis direction within the orthogonally intersecting plane of optical axis. CONSTITUTION:An optical waveguide 4 having variable magnification characteristics in a y-axis direction and an optical guide 5 having variable magnification characteristics in an x-axis direction are disposed on the same optical axis between an original K and a photoreceptor P. The optical waveguide 4 forms an intermediate image 23 reducing the image 2'' of the original K in the y-axis direction onto space, and this image 23 is reduced in the x-axis direction by the waveguide 5 and is formed as an image 3'' on the photoreceptor P. With such constitution, the waveguides 4, 5 per se are compact, and therefore, the variable magnification copying machine of high space efficiency is obtained.
JP12078880A 1980-09-01 1980-09-01 Electrophotographic copier Pending JPS5745568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12078880A JPS5745568A (en) 1980-09-01 1980-09-01 Electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12078880A JPS5745568A (en) 1980-09-01 1980-09-01 Electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS5745568A true JPS5745568A (en) 1982-03-15

Family

ID=14795007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12078880A Pending JPS5745568A (en) 1980-09-01 1980-09-01 Electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS5745568A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58206750A (en) * 1982-05-28 1983-12-02 ダスキンフランチヤイズ株式会社 Wiping cloth
JPS59142534A (en) * 1983-02-02 1984-08-15 Konishiroku Photo Ind Co Ltd Variable power exposing device of copying machine
JPS62175763U (en) * 1986-04-22 1987-11-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58206750A (en) * 1982-05-28 1983-12-02 ダスキンフランチヤイズ株式会社 Wiping cloth
JPS59142534A (en) * 1983-02-02 1984-08-15 Konishiroku Photo Ind Co Ltd Variable power exposing device of copying machine
JPS62175763U (en) * 1986-04-22 1987-11-07

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