JPS6415318U - - Google Patents

Info

Publication number
JPS6415318U
JPS6415318U JP11015987U JP11015987U JPS6415318U JP S6415318 U JPS6415318 U JP S6415318U JP 11015987 U JP11015987 U JP 11015987U JP 11015987 U JP11015987 U JP 11015987U JP S6415318 U JPS6415318 U JP S6415318U
Authority
JP
Japan
Prior art keywords
light source
objective lens
disk
adjustment mechanism
pick
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.)
Pending
Application number
JP11015987U
Other languages
English (en)
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 filed Critical
Priority to JP11015987U priority Critical patent/JPS6415318U/ja
Publication of JPS6415318U publication Critical patent/JPS6415318U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Head (AREA)

Description

【図面の簡単な説明】
第1図は本考案一実施例を示す要部断面図、第
2図はレーザダイオード(光源)を移動した時の
対物レンズへの入射光の変化を示す図、第3図は
レーザダイオードの移動距離と球面収差との関係
を示す図、第4図は有限共役型対物レンズを用い
たピツクアツプ装置の光学系を示す図、第5図は
球面収差が生じる原理を示す図である。 1…レーザダイオード(光源)、4…対物レン
ズ、9及び12…ねじ切り及びねじ部(調節機構
)。

Claims (1)

    【実用新案登録請求の範囲】
  1. 光源から出射された拡散光を対物レンズでもつ
    てデイスク面上に収束せしめてデイスクに記録さ
    れた情報を読み取るピツクアツプ装置において、
    前記光源を出射光軸方向に変移させる調節機構を
    設けたことを特徴とするピツクアツプ装置。
JP11015987U 1987-07-17 1987-07-17 Pending JPS6415318U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11015987U JPS6415318U (ja) 1987-07-17 1987-07-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11015987U JPS6415318U (ja) 1987-07-17 1987-07-17

Publications (1)

Publication Number Publication Date
JPS6415318U true JPS6415318U (ja) 1989-01-26

Family

ID=31347060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11015987U Pending JPS6415318U (ja) 1987-07-17 1987-07-17

Country Status (1)

Country Link
JP (1) JPS6415318U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031727B2 (ja) * 1978-09-11 1985-07-24 東京測範株式会社 送り装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031727B2 (ja) * 1978-09-11 1985-07-24 東京測範株式会社 送り装置

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