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:
Nov. 22, 2011
Filed:
Aug. 28, 2007
Masaaki Suetsugu, Daito, JP;
Masaaki Suetsugu, Daito, JP;
Funai Electric Co., Ltd., , JP;
Abstract
There is provided an optical pickup apparatus in which the collimator lens cannot be scratched before the support base for the objective lens actuator is fixed, and further dust can hardly come in and be deposited to result in contaminating the collimator lens and thereby degrading the performance for recording and/or reproduction. A pair of movement limiting wallsandfor limiting the horizontal movement of a support basefor an objective lens actuatorare formed on the upper surface of a base chassisas contact prevention means for preventing the support basefrom coming into contact with a collimator lensbefore the support baseis fixed. The movement limiting wallsandprevent the support basefrom coming into contact with and scratching the collimator lens. Each movement limiting wallhas a wall length equal to or greater than the diameter of the collimator lensto serve as a dust prevention wall, whereby dust can hardly come in and be deposited to result in contaminating the collimator lensand thereby degrading the performance for recording and/or reproduction.