JPS6183120U - - Google Patents

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Publication number
JPS6183120U
JPS6183120U JP16820084U JP16820084U JPS6183120U JP S6183120 U JPS6183120 U JP S6183120U JP 16820084 U JP16820084 U JP 16820084U JP 16820084 U JP16820084 U JP 16820084U JP S6183120 U JPS6183120 U JP S6183120U
Authority
JP
Japan
Prior art keywords
photo sensor
sets
photo
sensor outputs
sensors
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
JP16820084U
Other languages
English (en)
Other versions
JPH0452821Y2 (ja
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 JP16820084U priority Critical patent/JPH0452821Y2/ja
Publication of JPS6183120U publication Critical patent/JPS6183120U/ja
Application granted granted Critical
Publication of JPH0452821Y2 publication Critical patent/JPH0452821Y2/ja
Expired legal-status Critical Current

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  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Description

【図面の簡単な説明】
第１図は本考案に係るフオトセンサを示す図、
第２図は従来のフオトセンサを示す図、第３図は
レーザの強度分布を示す図である。 Ｓ１，Ｓ２，Ｓ３はフオトセンサ。

Claims (1)

  1. 【実用新案登録請求の範囲】 ４分割フオトセンサのうち対角線上のフオトセ
    ンサを組合せて二組のフオトセンサ出力を得、こ
    れ等二組のフオトセンサ出力の差に基いてフオー
    カスエラー信号を作成し、且つ前記４分割フオト
    センサの全てのフオトセンサ出力の和に基いて情
    報信号を作成する構成とした光学式ピツクアツプ
    装置であつて、 前記二組のフオトセンサのうち一方の組のフオ
    トセンサ間を連続させたことを特徴とする光学式
    ピツクアツプ装置。
JP16820084U 1984-11-06 1984-11-06 Expired JPH0452821Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16820084U JPH0452821Y2 (ja) 1984-11-06 1984-11-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16820084U JPH0452821Y2 (ja) 1984-11-06 1984-11-06

Publications (2)

Publication Number Publication Date
JPS6183120U true JPS6183120U (ja) 1986-06-02
JPH0452821Y2 JPH0452821Y2 (ja) 1992-12-11

Family

ID=30725979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16820084U Expired JPH0452821Y2 (ja) 1984-11-06 1984-11-06

Country Status (1)

Country Link
JP (1) JPH0452821Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63205827A (ja) * 1987-02-20 1988-08-25 Matsushita Electric Ind Co Ltd 光検出装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63205827A (ja) * 1987-02-20 1988-08-25 Matsushita Electric Ind Co Ltd 光検出装置

Also Published As

Publication number Publication date
JPH0452821Y2 (ja) 1992-12-11

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