Optical head device

摘要

An optical head device includes a heat-radiating body for radiating heat generated in the laser beam emitting element which is disposed so as to have a gap space with respect to the laser beam emitting element and a heat-conductive member which is filled in the gap space between the laser beam emitting element and the heat-radiating body. The heat-conductive member is a gel-like heat-conductive member having a heat transmission property or a heat-conductive member having a heat transmission property and elasticity. Another optical head device includes an optical system including a laser driver for driving the laser beam emitting element, a frame on which the optical system is mounted, a cover which is fixed to the frame for protecting at least a part of the optical system and a heat-radiating body which is formed in a separated manner from the cover for radiating heat generated in the laser driver.