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US 2006/0139761 A1Published application
Optical pick-up apparatus and optical disk apparatus
AssigneeToshiba Samsung Storage Technology Corporation
InventorToru Washiyama
Life of this patent
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Abstract
An exemplary optical pick-up apparatus of the invention comprises: an optical base; a collimator lens provided on the optical base; a laser source disposed adjacent the collimator lens on the optical base and emitting light that produces heat; and temperature gradient control means, provided between the collimator lens and the laser source on the optical base, for flattening temperature gradient between the collimator lens and its surroundings.
Claims15
An optical pick-up apparatus comprising:
- an optical base;
- a collimator lens provided on the optical base;
- a laser source disposed adjacent the collimator lens on the optical base and emitting light that produces heat;
- and
- temperature gradient control means, provided between the collimator lens and the laser source on the optical base, for flattening temperature gradient between the collimator lens and its surroundings.
2 more elements
An optical pick-up apparatus comprising:
- an optical base;
- a collimator lens provided on the optical base;
- a laser source disposed adjacent the collimator lens on the optical base and emitting light that produces heat;
- and
- temperature gradient control means, disposed opposite the collimator lens with respect to the laser source on the optical base, for flattening temperature gradient between the collimator lens and its surroundings.
2 more elements
An optical pick-up apparatus comprising:
- an optical base;
- a collimator lens provided on the optical base;
- a laser source disposed adjacent the collimator lens on the optical base and emitting light that produces heat;
- first temperature gradient control means, provided between the collimator lens and the laser source on the optical base, for flattening temperature gradient between the collimator lens and its surroundings;
- and
- second temperature gradient control means, disposed opposite the collimator lens with respect to the laser source, for flattening temperature gradient between the collimator lens and its surroundings.
3 more elements
Dependencies are inferred from the claim text.