JPH0316692B2 - - Google Patents

Info

Publication number
JPH0316692B2
JPH0316692B2 JP16958286A JP16958286A JPH0316692B2 JP H0316692 B2 JPH0316692 B2 JP H0316692B2 JP 16958286 A JP16958286 A JP 16958286A JP 16958286 A JP16958286 A JP 16958286A JP H0316692 B2 JPH0316692 B2 JP H0316692B2
Authority
JP
Japan
Prior art keywords
light
light receiving
focus
disk
tracking
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.)
Expired
Application number
JP16958286A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62256234A (ja
Inventor
Hitoshi Kanamaru
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.)
PAIONIA BIDEO KK
PAIONIA KK
Original Assignee
PAIONIA BIDEO KK
PAIONIA KK
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 PAIONIA BIDEO KK, PAIONIA KK filed Critical PAIONIA BIDEO KK
Priority to JP16958286A priority Critical patent/JPS62256234A/ja
Publication of JPS62256234A publication Critical patent/JPS62256234A/ja
Publication of JPH0316692B2 publication Critical patent/JPH0316692B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP16958286A 1986-07-18 1986-07-18 光学式情報読取装置のサ−ボ装置 Granted JPS62256234A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16958286A JPS62256234A (ja) 1986-07-18 1986-07-18 光学式情報読取装置のサ−ボ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16958286A JPS62256234A (ja) 1986-07-18 1986-07-18 光学式情報読取装置のサ−ボ装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP53073976A Division JPS6038771B2 (ja) 1978-06-19 1978-06-19 光学式情報読取装置のサ−ボ装置

Publications (2)

Publication Number Publication Date
JPS62256234A JPS62256234A (ja) 1987-11-07
JPH0316692B2 true JPH0316692B2 (no) 1991-03-06

Family

ID=15889149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16958286A Granted JPS62256234A (ja) 1986-07-18 1986-07-18 光学式情報読取装置のサ−ボ装置

Country Status (1)

Country Link
JP (1) JPS62256234A (no)

Also Published As

Publication number Publication date
JPS62256234A (ja) 1987-11-07

Similar Documents

Publication Publication Date Title
CA1055605A (en) Focusing system for videodisc player
US4232337A (en) Method and apparatus for tracking an optically readable information track
JP2573453B2 (ja) データキャリヤ上のデータの記録及び読取りの少なくとも一方の為の光学ヘッド
JPS6227456B2 (no)
US4273998A (en) Servo unit for optical type information reading device
US4290132A (en) Focus servo device for use in an optical information read-out device
US4287413A (en) Automatic focus servomechanism in optical information reading device
US4464567A (en) Photoelectric information and focus detector
JPH0316692B2 (no)
JPS6329337B2 (no)
HUT62419A (en) Optical scanner
JPS6012693B2 (ja) 光学的情報再生装置における自動焦点合せ装置
JPS6224859B2 (no)
JPS61233441A (ja) 光ヘツド装置
JPS6038773B2 (ja) 光学式情報読取装置のフォ−カスサ−ボ装置
JPH0224843A (ja) 光ピックアップ装置
JPS618746A (ja) 光デイスク装置のトラツキングエラ−検出装置
JPS5828653B2 (ja) 光学的記録再生機の間隔検出装置
JPS5841448A (ja) 光学的焦点位置移動方式
JPS6111951A (ja) 光ヘツド装置
JPS6040094B2 (ja) 光学式情報読取装置のフォ−カスサ−ボ装置
JPS6223373B2 (no)
JPS59124041A (ja) 焦点制御装置
JPS62143235A (ja) 光情報記録再生装置の焦点ずれ検出装置
JPH043572B2 (no)