JPS6112594Y2 - - Google Patents

Info

Publication number

JPS6112594Y2

JPS6112594Y2 JP12816680U JP12816680U JPS6112594Y2 JP S6112594 Y2 JPS6112594 Y2 JP S6112594Y2 JP 12816680 U JP12816680 U JP 12816680U JP 12816680 U JP12816680 U JP 12816680U JP S6112594 Y2 JPS6112594 Y2 JP S6112594Y2

Authority

JP

Japan

Prior art keywords

optical

pole yoke

optical pickup

pickup section

signal reading

Prior art date

1980-09-09

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

Links

• Espacenet
• Global Dossier
• Discuss

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• 239000000696 magnetic material Substances 0.000 claims description 7
• 230000015572 biosynthetic process Effects 0.000 description 3
• BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
• 239000000853 adhesive Substances 0.000 description 2
• 230000001070 adhesive effect Effects 0.000 description 2
• 230000005520 electrodynamics Effects 0.000 description 2
• 230000004907 flux Effects 0.000 description 2
• 230000007774 longterm Effects 0.000 description 2
• 239000004065 semiconductor Substances 0.000 description 2
• 230000007423 decrease Effects 0.000 description 1
• 238000010586 diagram Methods 0.000 description 1
• 230000035699 permeability Effects 0.000 description 1
• 229920006395 saturated elastomer Polymers 0.000 description 1