JPS5643611A - Scanning optical system - Google Patents

Scanning optical system

Info

Publication number
JPS5643611A
JPS5643611A JP12030279A JP12030279A JPS5643611A JP S5643611 A JPS5643611 A JP S5643611A JP 12030279 A JP12030279 A JP 12030279A JP 12030279 A JP12030279 A JP 12030279A JP S5643611 A JPS5643611 A JP S5643611A
Authority
JP
Japan
Prior art keywords
scanning
plane
light beam
light
light source
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.)
Granted
Application number
JP12030279A
Other languages
Japanese (ja)
Other versions
JPH0151802B2 (en
Inventor
Keiichi Kubota
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12030279A priority Critical patent/JPS5643611A/en
Publication of JPS5643611A publication Critical patent/JPS5643611A/en
Publication of JPH0151802B2 publication Critical patent/JPH0151802B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE: To enhance resolving power by providing an optical scanning means scanning the light beam from a monochromatic light source on the exit side of the light source and providing a one-dimensional stripe-shaped grating converting the light beam to an elliptical beam between the monochromatic light source and the optical scanning means.
CONSTITUTION: The laser light 22 out from a laser light source 21 is coverted to a light beam 24 of an elliptical shape by a beam coverter 23, and becomes the light beam 27 further magnified by lenses 25, 26. After the light beam 27 is reflected by a scanning mirror 28, it is made to the beam 31 focused on the scanning plane 30 existing on the (xy) plane by an f.θ lens 29. The focused beam 31 is scanned in the (x) direction by rotating the scanning mirrror 28 within the (xz) plane and every time when the (x) direction scanning ends, the scanning plane 30 successively moves in the (y) direction. The light reflected from the scanning plane 30 is detected with a detector 32, whereby two-dimensional scanning is accomplished. As the light beam converter 23, a phase grating of a stripe shape is used. Thereby, the resolving power may be enhanced.
COPYRIGHT: (C)1981,JPO&Japio
JP12030279A 1979-09-18 1979-09-18 Scanning optical system Granted JPS5643611A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12030279A JPS5643611A (en) 1979-09-18 1979-09-18 Scanning optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12030279A JPS5643611A (en) 1979-09-18 1979-09-18 Scanning optical system

Publications (2)

Publication Number Publication Date
JPS5643611A true JPS5643611A (en) 1981-04-22
JPH0151802B2 JPH0151802B2 (en) 1989-11-06

Family

ID=14782865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12030279A Granted JPS5643611A (en) 1979-09-18 1979-09-18 Scanning optical system

Country Status (1)

Country Link
JP (1) JPS5643611A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5093447A (en) * 1973-12-19 1975-07-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5093447A (en) * 1973-12-19 1975-07-25

Also Published As

Publication number Publication date
JPH0151802B2 (en) 1989-11-06

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