Patent Number: 7,711,020

Title: Optical pick-up apparatus and optical disk apparatus

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.

Inventors: Washiyama; Toru (Kawasaki, JP)

Assignee: Toshiba Samsung Storage Technology Corporation

International Classification: H01S 3/04 (20060101)

Expiration Date: 5/04/12018