JPS6120918A - 光デイスク用レンズ - Google Patents

光デイスク用レンズ

Info

Publication number
JPS6120918A
JPS6120918A JP14265084A JP14265084A JPS6120918A JP S6120918 A JPS6120918 A JP S6120918A JP 14265084 A JP14265084 A JP 14265084A JP 14265084 A JP14265084 A JP 14265084A JP S6120918 A JPS6120918 A JP S6120918A
Authority
JP
Japan
Prior art keywords
lens
group
positive
light source
lenses
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
JP14265084A
Other languages
English (en)
Japanese (ja)
Other versions
JPS633284B2 (en:Method
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 JP14265084A priority Critical patent/JPS6120918A/ja
Publication of JPS6120918A publication Critical patent/JPS6120918A/ja
Publication of JPS633284B2 publication Critical patent/JPS633284B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
JP14265084A 1984-07-10 1984-07-10 光デイスク用レンズ Granted JPS6120918A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14265084A JPS6120918A (ja) 1984-07-10 1984-07-10 光デイスク用レンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14265084A JPS6120918A (ja) 1984-07-10 1984-07-10 光デイスク用レンズ

Publications (2)

Publication Number Publication Date
JPS6120918A true JPS6120918A (ja) 1986-01-29
JPS633284B2 JPS633284B2 (en:Method) 1988-01-22

Family

ID=15320289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14265084A Granted JPS6120918A (ja) 1984-07-10 1984-07-10 光デイスク用レンズ

Country Status (1)

Country Link
JP (1) JPS6120918A (en:Method)

Also Published As

Publication number Publication date
JPS633284B2 (en:Method) 1988-01-22

Similar Documents

Publication Publication Date Title
JPH0217086B2 (en:Method)
US4721373A (en) Lens system for use with an optical disk
JPS58219511A (ja) 光デイスク用レンズ
CA1142005A (en) Wide aperture objective lens
JPS6120918A (ja) 光デイスク用レンズ
JPH0143291B2 (en:Method)
US4852981A (en) Imaging lens system comprising a distributed index lens and a plano-convex lens
KR970002954A (ko) 광픽업용 2위치 결상 대물렌즈
US4932763A (en) Aspherical single lens system for use with optical cards
JPH02269303A (ja) 光ディスク用色収差補正レンズ
JPH0348487B2 (en:Method)
JPH0143290B2 (en:Method)
US4472034A (en) Optical read-out lens system for optically recorded disks
JPH0140325B2 (en:Method)
JPS6049287B2 (ja) ビデオデイスク用再生レンズ
JPS62217214A (ja) 光デイスク用レンズ
JP3033914B2 (ja) 光ディスク用対物レンズ
JPS636723Y2 (en:Method)
JPS61147212A (ja) 半導体レ−ザ−用コリメ−タ−レンズ
JPH0210402B2 (en:Method)
JPS6091317A (ja) 光デイスク用対物レンズ
JPS6187115A (ja) 光デイスク用対物レンズのリレ−レンズ
JPH01130115A (ja) レーザービーム用レンズ系
JPS62135802A (ja) 光情報記録媒体の記録再生用対物レンズ
JPS5848010A (ja) ビデオディスク用対物レンズ