Optical pickup comprising a heat-insulating material

Details Optical pickup comprising a heat-insulating material Optical pickup comprising a heat-insulating material

1996-09-16

1997-09-30

Epps, Georgia Y.

Optical: systems and elements

Lens

With support

359814, 359823, 359824, G02B 702

Patent

active

056731523

ABSTRACT:
An optical pickup includes an object lens; a lens holder for holding the object lens; a visco-elastic suspender for suspending the lens holder so as to be movable in a focusing direction and a tracking direction; a driving section for driving the lens holder in the focusing direction and the tracking direction, the driving section including a magnet, a yoke and a driving coil provided on the lens holder. The magnet and the yoke form a magnetic circuit. A heat-insulating area is located between the object lens and the driving coil, and the heat-insulating area includes a heat-insulating material which has a thermal conductivity lower than that of the lens holder.

REFERENCES:
patent: 4646283 (1987-02-01), Ito et al.
patent: 4796121 (1989-01-01), Adamek et al.
patent: 5018836 (1991-05-01), Noda et al.
patent: 5264968 (1993-11-01), Masunaga
patent: 5299183 (1994-03-01), Yamaguchi
patent: 5313332 (1994-05-01), Schell et al.
patent: 5555228 (1996-09-01), Izuka
patent: 5600619 (1997-02-01), Takekoshi et al.

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