光学拾取器以及包含该光学拾取器的光学系统
申请公布号:CN103247308A
申请号:CN201310042211.7
申请日期:2013.02.01
申请公布日期:2013.08.14
发明人:安知善;金义烈;李溶宰
分类号:G11B7/09(2006.01)I;G11B7/1372(2012.01)I;G11B7/1376(2012.01)I
主分类号:G11B7/09(2006.01)I
代理人:刘奕晴;全成哲
地址:韩国京畿道水原市
摘要:本发明提供了一种光学拾取器以及采用所述光学拾取器的光学系统。所述光学拾取器包括双光源。根据多个方面,与传统的光学拾取器相比,在增加光学拾取器的倍率的同时减小双光源的两个光源之间的长度。因此,可减小光学拾取器的制造成本。
主权项:一种光学拾取器,包括:光源,发射光;物镜,会聚入射光,以在信息存储介质上形成光斑;准直透镜,将从光源发射的光进行准直,以允许光入射到物镜上;光电检测器,接收从信息存储介质反射的光,以检测信息信号和/或误差信号;检测透镜,使反射的光在光电检测器上形成光斑,其中,光源、准直透镜、检测透镜被布置为使得所述光学拾取器具有9.1倍或大于9.1倍的光接收倍率。
HOMOGENEOUS AND STABLE CEREAL SUSPENSION
Folding jig for a lifting device pulled on a guiding arm
SWEETNESS IMPROVING AGENTS AND FOODS WITH THE USE THEREOF
METHOD FOR THE SYNTHESIS OF TAXANES
FERROELECTRIC THICK-LAYER STRUCTURES BASED ON LEAD PEROVSKITES AND METHOD FOR THEIR PRODUCTION
Panel for open vehicle roof with plastic frame and heater element embedded therein
PAYMENT SYSTEM AND ELECTRONIC PURSE UNIT
Video game apparatus and memory medium therefor
Position detecting method and apparatus
Front structure of a motor car and motor car equipped with this structure
Connector assembly with a mounting bracket
ACCESS-CONTROLLED DATA STORAGE MEDIUM
METHOD AND APPARATUS FOR DISPENSING LIQUIDS AND SOLIDS
IMPLANTABLE TISSUE FASTENER AND SYSTEM FOR TREATING GASTROESOPHAGEAL REFLUX DISEASE