Original document(12 pages)  中文版
    The invention relates to a light pickup apparatus which comprises: laser diode for generating 2 wave shape lengths laser beam; aiming lens for paralleling the light beam; object lens for focusing the light beam on the right point on the light plate; light detecting device for reading light beam reflected from CD; the first light beam divider with two reflection surfaces on the two surface for unifying the path of 2 wave shape lengths light beams irradiated from the laser diode, according to the polarizing direction of incoming light beams to transmit or reflect incoming light beams; the second light beam divider with a certain thickness for generating diffused light to take servo detect the light beam reflected by CD.
Application Number
申请号		 200410081883 Application Date
申请日		 2004.12.31
Title 名称 Optical pick-up device
Publication Number
公开号		 1801352 Publication Date
公开日		 2006.07.12
Approval Pub. Date Granted Pub. Date
International Classification 分类号 G11B7/12
Applicant(s) Name
申请人		 Shanghai LG Electronics Co., Ltd.
Address 地址 201206
Inventor(s) Name 发明人 Lee Chang-hwan
Attorney & Agent 代理人 wang ruzhen

  
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