JPS56122183A - Semiconductor laser light source - Google Patents

Semiconductor laser light source

Info

Publication number
JPS56122183A
JPS56122183A JP2586780A JP2586780A JPS56122183A JP S56122183 A JPS56122183 A JP S56122183A JP 2586780 A JP2586780 A JP 2586780A JP 2586780 A JP2586780 A JP 2586780A JP S56122183 A JPS56122183 A JP S56122183A
Authority
JP
Japan
Prior art keywords
lens
light source
ring
semiconductor laser
laser light
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
JP2586780A
Other languages
Japanese (ja)
Other versions
JPH0156550B2 (en
Inventor
Naoto Kawamura
Takehiko Kiyohara
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 JP2586780A priority Critical patent/JPS56122183A/en
Publication of JPS56122183A publication Critical patent/JPS56122183A/en
Publication of JPH0156550B2 publication Critical patent/JPH0156550B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/30—Collimators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Semiconductor Lasers (AREA)

Abstract

PURPOSE:To correct the deterioration of a spherical aberration in a collimater lens with a semiconductor laser as a light source by varying the special air interval of respective lens groups. CONSTITUTION:A correction ring 111 is rotated in either direction, a rectilinear ring 110 moves parallel to the condensing lens via a guide pin 109 and a long hole 105a at the optical axis. When the ring 110 moves, the guide pin 109 also moves along the long hole 105a and hence a rear lens-barrel 107 will also move in a direction parallel to the optical axis of the condensing lens. Accordingly, the interval of the lenses between the front groups L1, L2 and the rear group L3 will vary. Thus, the best spherical aberration matched to the wavelength of the used laser light can be obtained, and the irregularity of the protective transparent plate can be corrected.
JP2586780A 1980-02-29 1980-02-29 Semiconductor laser light source Granted JPS56122183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2586780A JPS56122183A (en) 1980-02-29 1980-02-29 Semiconductor laser light source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2586780A JPS56122183A (en) 1980-02-29 1980-02-29 Semiconductor laser light source

Publications (2)

Publication Number Publication Date
JPS56122183A true JPS56122183A (en) 1981-09-25
JPH0156550B2 JPH0156550B2 (en) 1989-11-30

Family

ID=12177737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2586780A Granted JPS56122183A (en) 1980-02-29 1980-02-29 Semiconductor laser light source

Country Status (1)

Country Link
JP (1) JPS56122183A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60113657U (en) * 1983-12-29 1985-08-01 富岡光学株式会社 semiconductor laser equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396344A (en) * 1964-02-24 1968-08-06 Nat Res Dev Semiconductor laser array
JPS5439145A (en) * 1977-09-02 1979-03-26 Canon Inc Light source device
JPS5742011U (en) * 1980-08-22 1982-03-06

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396344A (en) * 1964-02-24 1968-08-06 Nat Res Dev Semiconductor laser array
JPS5439145A (en) * 1977-09-02 1979-03-26 Canon Inc Light source device
JPS5742011U (en) * 1980-08-22 1982-03-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60113657U (en) * 1983-12-29 1985-08-01 富岡光学株式会社 semiconductor laser equipment

Also Published As

Publication number Publication date
JPH0156550B2 (en) 1989-11-30

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