JPS5914161U - Device for detecting scratches, dirt, etc. on magnetic disks - Google Patents

Device for detecting scratches, dirt, etc. on magnetic disks

Info

Publication number
JPS5914161U
JPS5914161U JP10777482U JP10777482U JPS5914161U JP S5914161 U JPS5914161 U JP S5914161U JP 10777482 U JP10777482 U JP 10777482U JP 10777482 U JP10777482 U JP 10777482U JP S5914161 U JPS5914161 U JP S5914161U
Authority
JP
Japan
Prior art keywords
dirt
magnetic disk
magnetic disks
detecting scratches
converts
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
JP10777482U
Other languages
Japanese (ja)
Other versions
JPH0233339Y2 (en
Inventor
隆 池田
Original Assignee
東芝エンジニアリング株式会社
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 東芝エンジニアリング株式会社 filed Critical 東芝エンジニアリング株式会社
Priority to JP10777482U priority Critical patent/JPS5914161U/en
Publication of JPS5914161U publication Critical patent/JPS5914161U/en
Application granted granted Critical
Publication of JPH0233339Y2 publication Critical patent/JPH0233339Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

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) [Abstract] 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図は従来の検出方法を示す断面図、第２図は本考案
に係る検出装置の原理図、第３図は本考案に係る検出装
置の側面図、第４図は本考案に係る検出装置の平面図で
ある。Fig. 1 is a sectional view showing a conventional detection method, Fig. 2 is a principle diagram of a detection device according to the present invention, Fig. 3 is a side view of a detection device according to the present invention, and Fig. 4 is a detection according to the present invention. FIG. 2 is a plan view of the device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 磁気ディスク表面に可聴周波変調光を投射する発光体と
、上記磁気ディスク表面で反射した可聴周波変調光を受
光し、これを電気信号に変換する受光部材と、この受光
部材からの電気信号を音に変換するスピーカとからなる
ことを特徴とする磁気ディスクの傷、汚れ等の検出装置
。A light emitter that projects audio frequency modulated light onto the magnetic disk surface; a light receiving member that receives the audio frequency modulated light reflected from the magnetic disk surface and converts it into an electrical signal; A device for detecting scratches, dirt, etc. on a magnetic disk, characterized by comprising a speaker that converts it into a magnetic disk.
JP10777482U 1982-07-16 1982-07-16 Device for detecting scratches, dirt, etc. on magnetic disks Granted JPS5914161U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10777482U JPS5914161U (en) 1982-07-16 1982-07-16 Device for detecting scratches, dirt, etc. on magnetic disks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10777482U JPS5914161U (en) 1982-07-16 1982-07-16 Device for detecting scratches, dirt, etc. on magnetic disks

Publications (2)

Publication Number Publication Date
JPS5914161U true JPS5914161U (en) 1984-01-28
JPH0233339Y2 JPH0233339Y2 (en) 1990-09-07

Family

ID=30251697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10777482U Granted JPS5914161U (en) 1982-07-16 1982-07-16 Device for detecting scratches, dirt, etc. on magnetic disks

Country Status (1)

Country Link
JP (1) JPS5914161U (en)

Also Published As

Publication number Publication date
JPH0233339Y2 (en) 1990-09-07

Similar Documents

Publication Publication Date Title
JPS5914161U (en) Device for detecting scratches, dirt, etc. on magnetic disks
JPS6093125U (en) Optical recording and reproducing device
JPS5810275U (en) Information recording area detection device
JPS5999591U (en) Automatic color level control circuit for video tape recorder
JPS5880555U (en) Magnetic head dirt detection device
JPS5839776U (en) Record disc track interval detection device
JPS5830912U (en) magnetic disk device
JPS5950042U (en) Signal regeneration optical system
JPS582736U (en) Magnetic-optical composite disk
JPS59107728U (en) Optical pick-up device
JPS58135019U (en) Disk dust removal device
JPS59125755U (en) magnetic disk device
JPS60166864U (en) Rotation detection device for magnetic disk drive device
JPS5960707U (en) magnetic recording and playback device
JPS6098123U (en) optical pickup device
JPS58155641U (en) Tape end detection circuit
JPS6064421U (en) Optical pick-up device
JPS6137194U (en) floppy disk device
JPS58155615U (en) protective disc
JPS5852641U (en) optical reading and reproducing device
JPS6148407U (en)
JPS59168860U (en) Record interval detection device
JPS58151936U (en) Cue device
JPS5869375U (en) Accidental disk insertion alarm device
JPS5910189U (en) cleaning sponge