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US 2004/0111736 A1Published application
Optical pickup apparatus
AssigneePioneer Corporation
InventorTakehiro Matsuda
Life of this patent
Estimating the term…
Abstract
An actuator includes an intervention member being interposed between an object lens and a bobbin for supporting the object lens and different from the bobbin in thermal conductivity, thereby preventing an occurrence of degradation of the lens characteristic of the object lens caused by unevenness of the temperature distribution in the object lens due to the heat generated by a coil.
Claims8
An optical pickup apparatus comprising:
- an object lens arranged to be opposed to an optical disk;
- a bobbin configured to support the object lens;
- and
- an intervention member being interposed between the object lens and the bobbin and is different from the bobbin in thermal conductivity.
1 more element
Dependencies are inferred from the claim text.