Patent ID: 7619960

Claim:
An optical pickup device using a laser beam comprising: a light-emitting element emitting the laser beam; a collimating lens; an objective lens; a light-receiving element configured so that the laser beam emitted from said light-emitting element is converged on a recording surface of an optical disc in an incident path through said collimating lens and said objective lens, and the converged laser beam is entered to said light-receiving element reversely passing through said incident path after being reflected on the recording surface of the optical disc; a beam splitter arranged in an optical path between the light-emitting element and the collimating lens for at least one of transmitting or reflecting the laser beam; a front monitor light-receiving element configured to receive a part of the laser beam emitted from said light-emitting element and detecting the amount of the laser beam, wherein a light receiving surface of the front monitor light-receiving element is parallel to an optical axis passing through said light emitting element and said collimating lens; and an optical guiding member arranged in contact with and protruding from the light-receiving surface of the front monitor light-receiving element, the optical guiding member being configured to guide a part of the laser beam to said front monitor light-receiving element.