JPS58151927U - optical pick up - Google Patents

optical pick up

Info

Publication number
JPS58151927U
JPS58151927U JP4581782U JP4581782U JPS58151927U JP S58151927 U JPS58151927 U JP S58151927U JP 4581782 U JP4581782 U JP 4581782U JP 4581782 U JP4581782 U JP 4581782U JP S58151927 U JPS58151927 U JP S58151927U
Authority
JP
Japan
Prior art keywords
coil
yoke
magnetic
optical pick
magnetic gap
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
JP4581782U
Other languages
Japanese (ja)
Inventor
三輪　弘光
潤一 鈴木
Original Assignee
ソニー株式会社
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 ソニー株式会社 filed Critical ソニー株式会社
Priority to JP4581782U priority Critical patent/JPS58151927U/en
Publication of JPS58151927U publication Critical patent/JPS58151927U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の光学ピックアップの一例を示す縦断面図
、第２図及び第３図は夫々本考案による光学ピンクアッ
プの夫々の実施例を示す第１図と同様の縦断面図、第４
図はその特性曲線図である。 １は内ヨーク、２は外ヨーク、３は磁石、５は円筒体、
７はコイル、８は対物レンズである。FIG. 1 is a longitudinal sectional view showing an example of a conventional optical pickup, FIGS. 2 and 3 are longitudinal sectional views similar to FIG.
The figure is a diagram of its characteristic curve. 1 is an inner yoke, 2 is an outer yoke, 3 is a magnet, 5 is a cylindrical body,
7 is a coil, and 8 is an objective lens.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内ヨーク、外ヨーク及び磁石からなる磁気回路と、上記
内ヨーク及び外ヨーク間の磁気空隙内に摺動自在に挿入
され、対物レンズが取り付けられ、且つ上記磁気空隙内
に位置されたコイルが取り付けられてなる円筒体とを有
し、上記コイルに流れる電流により発生する磁束と交鎖
するようにショートリングを設け、フォーカス調整又は
トラッキング調整或いはその双方の調整時に生じる駆動
ノイズを減少させるようにしてなる光学ピックアップ。A magnetic circuit consisting of an inner yoke, an outer yoke, and a magnet; a coil that is slidably inserted into the magnetic gap between the inner yoke and the outer yoke; an objective lens is attached; and a coil positioned within the magnetic gap. A short ring is provided to intersect with the magnetic flux generated by the current flowing through the coil to reduce drive noise generated during focus adjustment, tracking adjustment, or both. An optical pickup.
JP4581782U 1982-03-31 1982-03-31 optical pick up Pending JPS58151927U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4581782U JPS58151927U (en) 1982-03-31 1982-03-31 optical pick up

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4581782U JPS58151927U (en) 1982-03-31 1982-03-31 optical pick up

Publications (1)

Publication Number Publication Date
JPS58151927U true JPS58151927U (en) 1983-10-12

Family

ID=30056826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4581782U Pending JPS58151927U (en) 1982-03-31 1982-03-31 optical pick up

Country Status (1)

Country Link
JP (1) JPS58151927U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547771U (en) * 1977-06-14 1979-01-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547771U (en) * 1977-06-14 1979-01-19

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