JPS5753849A - Disk reproducer of electrostatic capacitance system - Google Patents

Disk reproducer of electrostatic capacitance system

Info

Publication number
JPS5753849A
JPS5753849A JP55129740A JP12974080A JPS5753849A JP S5753849 A JPS5753849 A JP S5753849A JP 55129740 A JP55129740 A JP 55129740A JP 12974080 A JP12974080 A JP 12974080A JP S5753849 A JPS5753849 A JP S5753849A
Authority
JP
Japan
Prior art keywords
layer
disk
radio waves
outer case
reproducer
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
JP55129740A
Other languages
Japanese (ja)
Inventor
Ryoichi Imanaka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP55129740A priority Critical patent/JPS5753849A/en
Publication of JPS5753849A publication Critical patent/JPS5753849A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • G11B33/08—Insulation or absorption of undesired vibrations or sounds

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

PURPOSE:To prevent the interference between disk reproducers which are set close to each other with simple constitution, by forming the outer case of the reproducer with a radio wave absorbing material. CONSTITUTION:An outer case of a disk reproducer consists of a dielectric material 15 that functions as an absorber layer of radio waves and an electric conductor layer 14 provided on the surface of the material 15. The thickness of the absorber layer 15 is set so that a phase difference of 1/2 wavelength is obtained between the reflected electric wave sent from the surface of the layer 15 and the radio waves that are reflected on the surface of the layer 14 after passing through the layer 15 and emerge on the surface of the layer 15 after passing again through the layer 15. The both radio waves are eliminated by the offset of phases. As a result, the radio waves radiated from a disk, etc. are absorbed into the outer case to perfectly prevent the interference between the disk reproducers.
JP55129740A 1980-09-17 1980-09-17 Disk reproducer of electrostatic capacitance system Pending JPS5753849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55129740A JPS5753849A (en) 1980-09-17 1980-09-17 Disk reproducer of electrostatic capacitance system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55129740A JPS5753849A (en) 1980-09-17 1980-09-17 Disk reproducer of electrostatic capacitance system

Publications (1)

Publication Number Publication Date
JPS5753849A true JPS5753849A (en) 1982-03-31

Family

ID=15017029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55129740A Pending JPS5753849A (en) 1980-09-17 1980-09-17 Disk reproducer of electrostatic capacitance system

Country Status (1)

Country Link
JP (1) JPS5753849A (en)

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