JPH01154517U - - Google Patents

Info

Publication number

JPH01154517U

JPH01154517U JP4839988U JP4839988U JPH01154517U JP H01154517 U JPH01154517 U JP H01154517U JP 4839988 U JP4839988 U JP 4839988U JP 4839988 U JP4839988 U JP 4839988U JP H01154517 U JPH01154517 U JP H01154517U

Authority

JP

Japan

Prior art keywords

focusing

movable member

coil

tracking

objective lens

Prior art date

1988-04-11

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

Links

• Espacenet
• Global Dossier
• Discuss

• 239000000725 suspension Substances 0.000 claims description 2
• 230000003287 optical effect Effects 0.000 claims 2
• 238000010586 diagram Methods 0.000 description 2
• 230000004048 modification Effects 0.000 description 1
• 238000012986 modification Methods 0.000 description 1