The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 2012
Filed:
Mar. 31, 2009
Hiroyuki Toyoda, Hitachinaka, JP;
Takehiro Hayama, Fujisawa, JO;
Junichi Senga, Yokohama, JP;
Hitoshi Matsushima, Ryugasaki, JP;
Takayuki Fujimoto, Tsuchiura, JP;
Hiroyuki Toyoda, Hitachinaka, JP;
Takehiro Hayama, Fujisawa, JO;
Junichi Senga, Yokohama, JP;
Hitoshi Matsushima, Ryugasaki, JP;
Takayuki Fujimoto, Tsuchiura, JP;
Hitachi Media Electronics Co., Ltd., Iwate, JP;
Abstract
An optical pickup, having an optical pickup housing made of resin, for maintaining the heat radiation performance or capacity of a semiconductor laser, also an objective lens driving mechanism, and further a driver IC for the semiconductor laser, while keeping small-size and light-weight thereof, comprises a pickup housing, in which an optical part and a semiconductor laser are fixed; an objective lens, which is attached within the pickup housing; and an objective lens driving mechanism, which is configured to drive the objective lens, further comprising: a metal-made bottom cover, which is configured to cover a lower surface of the pickup housing and a side surface of an inner periphery of an optical disc, wherein the metal-made bottom cover and the semiconductor laser are thermally connected with each other.