JPS574070A - Optical imaging device - Google Patents

Optical imaging device

Info

Publication number
JPS574070A
JPS574070A JP7826980A JP7826980A JPS574070A JP S574070 A JPS574070 A JP S574070A JP 7826980 A JP7826980 A JP 7826980A JP 7826980 A JP7826980 A JP 7826980A JP S574070 A JPS574070 A JP S574070A
Authority
JP
Japan
Prior art keywords
arrays
array
mirrors
mirror
bar
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
JP7826980A
Other languages
Japanese (ja)
Inventor
Mitsuhisa Fukuda
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 JP7826980A priority Critical patent/JPS574070A/en
Publication of JPS574070A publication Critical patent/JPS574070A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/522—Projection optics
    • G03B27/525—Projection optics for slit exposure
    • G03B27/528—Projection optics for slit exposure in which the projection optics remain stationary

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To facilitate adjusting of focusing in the exposure optical system and the like of a copying machine of which conjugate length is determined by providing an adjusting mechanism which changes the distances between plural lens arrays. CONSTITUTION:An object surface 11 and an image surfacw 12 are disposed in parallel at a spacing L, and lens arrays 13, 15, 17 and mirrors 14, 16 are disposed respectively therebetween in prescribed modes. The array 13 is mounted slidably to a bar 24, and is so arranged that the optical axis from the arrays does not deviate. The array 17 is mounted in a like manner to a bar 30. The mirror 14 is mounted at 45 deg. on a moving pin 26, and is so arranged that the angles to the arrays 13 and 15 are always equal. the mirror 16 is also made into the similar constitution. If an oscillating lever 21 is oscillated around a stationary pin 22, the mirrors 14 and 16 move in mutually opposite directions according to turning of the array 15, and the distance between the arrays 13 and 17 with respect to the array 15 changes.
JP7826980A 1980-06-10 1980-06-10 Optical imaging device Pending JPS574070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7826980A JPS574070A (en) 1980-06-10 1980-06-10 Optical imaging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7826980A JPS574070A (en) 1980-06-10 1980-06-10 Optical imaging device

Publications (1)

Publication Number Publication Date
JPS574070A true JPS574070A (en) 1982-01-09

Family

ID=13657254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7826980A Pending JPS574070A (en) 1980-06-10 1980-06-10 Optical imaging device

Country Status (1)

Country Link
JP (1) JPS574070A (en)

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