JPS58200205A - 全長の短い光デイスク用対物レンズ - Google Patents

全長の短い光デイスク用対物レンズ

Info

Publication number
JPS58200205A
JPS58200205A JP8353082A JP8353082A JPS58200205A JP S58200205 A JPS58200205 A JP S58200205A JP 8353082 A JP8353082 A JP 8353082A JP 8353082 A JP8353082 A JP 8353082A JP S58200205 A JPS58200205 A JP S58200205A
Authority
JP
Japan
Prior art keywords
lens
lenses
focal length
object lens
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
JP8353082A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6233567B2 (ref
Inventor
Takahiro Sugiyama
孝浩 杉山
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 JP8353082A priority Critical patent/JPS58200205A/ja
Publication of JPS58200205A publication Critical patent/JPS58200205A/ja
Publication of JPS6233567B2 publication Critical patent/JPS6233567B2/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)
JP8353082A 1982-05-18 1982-05-18 全長の短い光デイスク用対物レンズ Granted JPS58200205A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8353082A JPS58200205A (ja) 1982-05-18 1982-05-18 全長の短い光デイスク用対物レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8353082A JPS58200205A (ja) 1982-05-18 1982-05-18 全長の短い光デイスク用対物レンズ

Publications (2)

Publication Number Publication Date
JPS58200205A true JPS58200205A (ja) 1983-11-21
JPS6233567B2 JPS6233567B2 (ref) 1987-07-21

Family

ID=13805041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8353082A Granted JPS58200205A (ja) 1982-05-18 1982-05-18 全長の短い光デイスク用対物レンズ

Country Status (1)

Country Link
JP (1) JPS58200205A (ref)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63271213A (ja) * 1987-04-28 1988-11-09 Pioneer Electronic Corp 光学式ピツクアツプ用対物レンズ

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1054354A (ja) * 1996-08-01 1998-02-24 Ritsuan Ro 真空容器の蓋装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5745512A (en) * 1980-09-02 1982-03-15 Olympus Optical Co Ltd Lens for video disk
JPS5758118A (en) * 1980-09-25 1982-04-07 Canon Inc High-resolution lens
JPS5872115A (ja) * 1981-10-24 1983-04-30 Tokyo Optical Co Ltd 高分解能対物レンズ系

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5745512A (en) * 1980-09-02 1982-03-15 Olympus Optical Co Ltd Lens for video disk
JPS5758118A (en) * 1980-09-25 1982-04-07 Canon Inc High-resolution lens
JPS5872115A (ja) * 1981-10-24 1983-04-30 Tokyo Optical Co Ltd 高分解能対物レンズ系

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63271213A (ja) * 1987-04-28 1988-11-09 Pioneer Electronic Corp 光学式ピツクアツプ用対物レンズ

Also Published As

Publication number Publication date
JPS6233567B2 (ref) 1987-07-21

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