JPS6235649B2 - - Google Patents

Info

Publication number
JPS6235649B2
JPS6235649B2 JP671484A JP671484A JPS6235649B2 JP S6235649 B2 JPS6235649 B2 JP S6235649B2 JP 671484 A JP671484 A JP 671484A JP 671484 A JP671484 A JP 671484A JP S6235649 B2 JPS6235649 B2 JP S6235649B2
Authority
JP
Japan
Prior art keywords
lens
group
light source
surface facing
positive
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.)
Expired
Application number
JP671484A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60150017A (ja
Inventor
Takahiro Sugyama
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP671484A priority Critical patent/JPS60150017A/ja
Publication of JPS60150017A publication Critical patent/JPS60150017A/ja
Publication of JPS6235649B2 publication Critical patent/JPS6235649B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
JP671484A 1984-01-18 1984-01-18 光ディスク用リレ−レンズ Granted JPS60150017A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP671484A JPS60150017A (ja) 1984-01-18 1984-01-18 光ディスク用リレ−レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP671484A JPS60150017A (ja) 1984-01-18 1984-01-18 光ディスク用リレ−レンズ

Publications (2)

Publication Number Publication Date
JPS60150017A JPS60150017A (ja) 1985-08-07
JPS6235649B2 true JPS6235649B2 (enExample) 1987-08-03

Family

ID=11645933

Family Applications (1)

Application Number Title Priority Date Filing Date
JP671484A Granted JPS60150017A (ja) 1984-01-18 1984-01-18 光ディスク用リレ−レンズ

Country Status (1)

Country Link
JP (1) JPS60150017A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5430510B2 (ja) * 2010-07-14 2014-03-05 住友重機械工業株式会社 レーザ加工装置

Also Published As

Publication number Publication date
JPS60150017A (ja) 1985-08-07

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