发明名称 |
Integrated optical component and optical pick-up device |
摘要 |
Provided are an integrated optical component which can prevent a detection optical system being affected by variation in working temperature, and a pick-up device using the integrated optical component. The integrated optical component for guiding a light beam emitted from a light emitting element to an optical disc, and for separating a required light beam from reflected light from the optical disc, wherein the integrated optical component includes therein a plurality of optical surfaces, and a diffraction grating for extracting light beams required from tracking control and focus control, from the reflected light is formed in any one of the optical surfaces.
|
申请公布号 |
US2002039330(A1) |
申请公布日期 |
2002.04.04 |
申请号 |
US20010961526 |
申请日期 |
2001.09.25 |
申请人 |
FUKAKUSA MASAHARU;HORINOUCHI SHOGO;GOTO HIROSHI;FURUKAWA FUMINOBU |
发明人 |
FUKAKUSA MASAHARU;HORINOUCHI SHOGO;GOTO HIROSHI;FURUKAWA FUMINOBU |
分类号 |
G11B7/09;G11B7/12;G11B7/13;G11B7/135;(IPC1-7):G11B7/095 |
主分类号 |
G11B7/09 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|