JPS57191628A - Recording method using solid state light emitting element - Google Patents

Recording method using solid state light emitting element

Info

Publication number
JPS57191628A
JPS57191628A JP56075674A JP7567481A JPS57191628A JP S57191628 A JPS57191628 A JP S57191628A JP 56075674 A JP56075674 A JP 56075674A JP 7567481 A JP7567481 A JP 7567481A JP S57191628 A JPS57191628 A JP S57191628A
Authority
JP
Japan
Prior art keywords
lens
width
light emitting
emitting element
write
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
JP56075674A
Other languages
Japanese (ja)
Inventor
Masami Emoto
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 JP56075674A priority Critical patent/JPS57191628A/en
Publication of JPS57191628A publication Critical patent/JPS57191628A/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
    • G03B27/526—Projection optics for slit exposure in which the projection optics move

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

PURPOSE:To reduce greatly the scanning frequency of an image forming element, by carrying out a reciprocal scan for at least one of an image forming element and a light emitting element array in the direction where the write-in pattern of a write-in unit is coincident with the main scanning direction. CONSTITUTION:For a write-in unit 5, both the setting position and the scanning width of an image forming lens 2 are naturally decided from the recording length l of the main scanning direction on a photosensitive surface 1, the magnification ratio m (m=b/a) of the lens 2 and the focal distance (f). In other words, the distance C=(1+m)f from the lens 2 to the surface 1, the distance (d)=(1+m)/m from the lens 2 to an LED array 3, and the scanning width (e)= l/(1+m) of the lens 2 are obtained respectively. The recording width of the subscanning direction is obtained as am=b for the unit 5 on the surface 1 from the width (a) of the subscanning direction of the array 3 and the magnification ratio (m) of the lens 2. Thus the writing with the recording width (b) is carried out on the surface 1 with a scan of the lens 2.
JP56075674A 1981-05-21 1981-05-21 Recording method using solid state light emitting element Pending JPS57191628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56075674A JPS57191628A (en) 1981-05-21 1981-05-21 Recording method using solid state light emitting element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56075674A JPS57191628A (en) 1981-05-21 1981-05-21 Recording method using solid state light emitting element

Publications (1)

Publication Number Publication Date
JPS57191628A true JPS57191628A (en) 1982-11-25

Family

ID=13582977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56075674A Pending JPS57191628A (en) 1981-05-21 1981-05-21 Recording method using solid state light emitting element

Country Status (1)

Country Link
JP (1) JPS57191628A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01152683A (en) * 1987-12-10 1989-06-15 Omron Tateisi Electron Co Semiconductor laser beam scanner
US6897941B2 (en) 2001-11-07 2005-05-24 Applied Materials, Inc. Optical spot grid array printer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01152683A (en) * 1987-12-10 1989-06-15 Omron Tateisi Electron Co Semiconductor laser beam scanner
US6897941B2 (en) 2001-11-07 2005-05-24 Applied Materials, Inc. Optical spot grid array printer

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