PURPOSE: An optical pickup device is provided to obtain a good electrical signal without drastically inclining a long axis of a beam spot in a DOS or ROS structure. CONSTITUTION: A light source system(20) includes a light source corresponding to at least one of a DVD(Digital Versatile Disk) or a BD(Blu-ray Disc)(1). A light receiving system(30) receives light reflected from the disc. A light transmitting system(10) includes an objective lens(11a,11b) contacting the disk and a collimating lens(12) which is placed in a rear side of the objective lens. The light transmitting system transmits light of the light source toward the disk. The light transmitting system transmits light reflected from the disk toward the light receiving system.
申请公布号
KR20120033720(A)
申请公布日期
2012.04.09
申请号
KR20100095398
申请日期
2010.09.30
申请人
TOSHIBA SAMSUNG STORAGE TECHNOLOGY KOREA CORPORATION