JPS5466833A - Variable power optical device of copying machines and others - Google Patents

Variable power optical device of copying machines and others

Info

Publication number
JPS5466833A
JPS5466833A JP13373377A JP13373377A JPS5466833A JP S5466833 A JPS5466833 A JP S5466833A JP 13373377 A JP13373377 A JP 13373377A JP 13373377 A JP13373377 A JP 13373377A JP S5466833 A JPS5466833 A JP S5466833A
Authority
JP
Japan
Prior art keywords
mirror
original
lens
optical device
variable power
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
JP13373377A
Other languages
Japanese (ja)
Inventor
Ryuzo Suzuki
Norio Kajiwara
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 JP13373377A priority Critical patent/JPS5466833A/en
Publication of JPS5466833A publication Critical patent/JPS5466833A/en
Pending legal-status Critical Current

Links

Landscapes

  • Variable Magnification In Projection-Type Copying Machines (AREA)

Abstract

PURPOSE: To achieve the simplification of movement of the optical system and the miniaturization of the device by providing a second mirror aside from a first mirror which is integral with a lens.
CONSTITUTION: A second mirror 3 which is inclined at an angle to the original 01, 02 plane is disposed for the first miror 2 of 45° which is integral with a lens 1 consisting of a front group and rear group of optical axes intersecting at 90° and is disposed at the point of intersection of the optical axes. Then, the lens mirror 1, first mirror 2 and second mirror 3 scan U-V-W at the equal magnification thereby exposing the original 01, 02 to the photosensitive surface of a photoreceptor 4 and scan X-Y=Z at the reduction. Since the mirrors 2, 3 can be of a small size and the optical system is required to be moved only in the optical axis direction on the original 01, 02 side and image side optical axis direction, their operations become simpler, the device smaller and simpler.
COPYRIGHT: (C)1979,JPO&Japio
JP13373377A 1977-11-08 1977-11-08 Variable power optical device of copying machines and others Pending JPS5466833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13373377A JPS5466833A (en) 1977-11-08 1977-11-08 Variable power optical device of copying machines and others

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13373377A JPS5466833A (en) 1977-11-08 1977-11-08 Variable power optical device of copying machines and others

Publications (1)

Publication Number Publication Date
JPS5466833A true JPS5466833A (en) 1979-05-29

Family

ID=15111633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13373377A Pending JPS5466833A (en) 1977-11-08 1977-11-08 Variable power optical device of copying machines and others

Country Status (1)

Country Link
JP (1) JPS5466833A (en)

Similar Documents

Publication Publication Date Title
JPS5466833A (en) Variable power optical device of copying machines and others
JPS5470842A (en) Scanning exposure device for copying apparatus
JPS5454057A (en) Projecting apparatus
JPS57197574A (en) Copying machine
JPS5470841A (en) Scanning expsure device for copying apparatus
JPS5470840A (en) Scanning exposure device for copying apparatus
JPS54138449A (en) Original fixing type copying machine
JPS5462817A (en) Scanning exposure apparatus in coyping machine
JPS6442812A (en) Production lot number exposure device
JPS557751A (en) Reader-printer
JPS5485024A (en) Magnification changing device in copying machine and other
JPS5276940A (en) Scanning optical system
JPS5724967A (en) Scanning exposure type copying machine
JPS54116920A (en) Lens for copier
JPS5528068A (en) Optical device of copying machine
JPS5462818A (en) Scanning exposure apparatus in copying machine
JPS5515119A (en) Original checking device
JPS54155846A (en) Exposure optical system in variable power copying apparatus
JPS54118237A (en) Variable power optical device of copying machines and others
JPS55126258A (en) Optical device of copying machine
JPS57186767A (en) Multistage variable magnification optical device
JPS57190967A (en) Variable magnification copying machine
JPS564116A (en) Optical device
JPS56126877A (en) Copying machine
JPS5462816A (en) Scanning exposure apparatus in copying machine