JPS56143409A - Laser scanning deflector - Google Patents

Laser scanning deflector

Info

Publication number
JPS56143409A
JPS56143409A JP4787980A JP4787980A JPS56143409A JP S56143409 A JPS56143409 A JP S56143409A JP 4787980 A JP4787980 A JP 4787980A JP 4787980 A JP4787980 A JP 4787980A JP S56143409 A JPS56143409 A JP S56143409A
Authority
JP
Japan
Prior art keywords
deflector
light
slit
scanning
theta
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
JP4787980A
Other languages
Japanese (ja)
Other versions
JPS619610B2 (en
Inventor
Yukio Sakai
Isao Sato
Fumio Yamazaki
Michinori Nagahiro
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4787980A priority Critical patent/JPS56143409A/en
Publication of JPS56143409A publication Critical patent/JPS56143409A/en
Publication of JPS619610B2 publication Critical patent/JPS619610B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To obtain a deflector of a small size, high efficiency and a low cost by using a converging convex lens and a slit plate of the slit width changing according to scanning angles in place of f-, theta-lenses of a laser deflector using a rotary polyhedral mirror. CONSTITUTION:Light from a semiconductor laser 11 is made into parallel light by a collimator lens 12, and this parallel light is focused by a focusing convex lens 13. The semiconductor laser 11 is so disposed that the direction P parallel to the joint surface coincides with the scanning direction. The light deflected by a rotary polyhedral mirror 14 passes through a slit plate 15 having such an opening which is narrow to increase the angle of deflection in the center and is of gradually wider slit widths, thereby entering onto a scanning plate 16 as roughly a circular luminous flux. The deflector of a small size, high efficiency and a low cost is obtained without using costly f- and theta-lenses.
JP4787980A 1980-04-10 1980-04-10 Laser scanning deflector Granted JPS56143409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4787980A JPS56143409A (en) 1980-04-10 1980-04-10 Laser scanning deflector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4787980A JPS56143409A (en) 1980-04-10 1980-04-10 Laser scanning deflector

Publications (2)

Publication Number Publication Date
JPS56143409A true JPS56143409A (en) 1981-11-09
JPS619610B2 JPS619610B2 (en) 1986-03-25

Family

ID=12787663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4787980A Granted JPS56143409A (en) 1980-04-10 1980-04-10 Laser scanning deflector

Country Status (1)

Country Link
JP (1) JPS56143409A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097314A (en) * 1983-10-10 1985-05-31 オセ−ネ−デルランド・ベ−・ヴエ− Exposer
CN110133843A (en) * 2019-04-30 2019-08-16 联想图像（天津）科技有限公司 A kind of laser scan unit and laser printer
CN110174762A (en) * 2019-04-30 2019-08-27 联想图像（天津）科技有限公司 A kind of laser scan unit and laser printer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110174763A (en) * 2019-04-30 2019-08-27 联想图像（天津）科技有限公司 A kind of laser scan unit and laser printer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097314A (en) * 1983-10-10 1985-05-31 オセ−ネ−デルランド・ベ−・ヴエ− Exposer
CN110133843A (en) * 2019-04-30 2019-08-16 联想图像（天津）科技有限公司 A kind of laser scan unit and laser printer
CN110174762A (en) * 2019-04-30 2019-08-27 联想图像（天津）科技有限公司 A kind of laser scan unit and laser printer

Also Published As

Publication number Publication date
JPS619610B2 (en) 1986-03-25

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