JPS57158666A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPS57158666A
JPS57158666A JP4431081A JP4431081A JPS57158666A JP S57158666 A JPS57158666 A JP S57158666A JP 4431081 A JP4431081 A JP 4431081A JP 4431081 A JP4431081 A JP 4431081A JP S57158666 A JPS57158666 A JP S57158666A
Authority
JP
Japan
Prior art keywords
positioning
image forming
original
glass
distance
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
JP4431081A
Other languages
Japanese (ja)
Inventor
Akihiro Nomura
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 JP4431081A priority Critical patent/JPS57158666A/en
Publication of JPS57158666A publication Critical patent/JPS57158666A/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)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To facilitate an easy focusing control, by forming a guide with an accurate rail and setting the upper surface of the outer member of the guide at the same level of the original reference surface. CONSTITUTION:The distance between an original surface A and an image forming surface B is referred to as (l), and positioning members 15 and 16 having the positioning surface C at the position away from the surface B by an optional distance lO are fixed to the main body of a picture forming device. The reference surface D provided on a minor image forming element array 2 having a short focus is made to touch the surface C to perform the positioning of the array 2. At the same time, a contact member 21 which has a contact surface G at the position away by a distance of l-lO from the original reference surface F touching the surface A of the original glass 1 provided on an outer member 17 functioning as a mobile member of an accurate rail E is provided on an inner member 20 functioning as a fixed member which is fixed to the main body of the rail E that guides the movement of the glass 1. Then the surface G is set at the same level as the surface C to perform the positioning of the glass 1.
JP4431081A 1981-03-26 1981-03-26 Image forming device Pending JPS57158666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4431081A JPS57158666A (en) 1981-03-26 1981-03-26 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4431081A JPS57158666A (en) 1981-03-26 1981-03-26 Image forming device

Publications (1)

Publication Number Publication Date
JPS57158666A true JPS57158666A (en) 1982-09-30

Family

ID=12687912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4431081A Pending JPS57158666A (en) 1981-03-26 1981-03-26 Image forming device

Country Status (1)

Country Link
JP (1) JPS57158666A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049331A (en) * 1983-08-29 1985-03-18 Canon Inc Image forming device
JPS60196741A (en) * 1984-03-19 1985-10-05 Fuji Xerox Co Ltd Optical unit fixing device
JPS62116248U (en) * 1986-01-17 1987-07-23
US5960552A (en) * 1996-09-19 1999-10-05 Mitutoyo Corporation Swing amount magnifying mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049331A (en) * 1983-08-29 1985-03-18 Canon Inc Image forming device
JPS60196741A (en) * 1984-03-19 1985-10-05 Fuji Xerox Co Ltd Optical unit fixing device
JPS62116248U (en) * 1986-01-17 1987-07-23
US5960552A (en) * 1996-09-19 1999-10-05 Mitutoyo Corporation Swing amount magnifying mechanism

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