Optical pick-up

Details Optical pick-up Optical pick-up

1999-05-19

2000-08-22

Ben, Loha

Optical: systems and elements

Lens

With support

359811, 359813, 359814, 359823, G02B 702

Patent

active

061081434

ABSTRACT:
An optical pick-up comprising a supporting shaft and a lens holder having a bearing part which fits on the supporting shaft rotatably. At least one of the supporting shaft and the bearing part is formed of ceramics containing zirconia. The optical pick-up allows a lens to be supported at high dimensional accuracy for a high-density recording medium and suppresses resonance for a high-speed access to a disc.

REFERENCES:
patent: 5942744 (1999-08-01), Kamo et al.
patent: 6016959 (2000-01-01), Kamo et al.

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