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1. 发明申请

US20080186831A1 Optical Scanning Device 审中-公开
标题翻译：光学扫描装置
公开(公告)号：US20080186831A1
公开(公告)日：2008-08-07
申请号：US11817806
申请日：2006-03-06
申请人： Teunis Willem Tukker , Coen Theodorus Hubertus Fransiscus Liedenbaum , Bernardus Hendrikus Wilhelmus Hendriks , Sjoerd Stallinga , Albert Hendrik Jan Immink , Stein Kuiper , Ming Song Chen
发明人： Teunis Willem Tukker , Coen Theodorus Hubertus Fransiscus Liedenbaum , Bernardus Hendrikus Wilhelmus Hendriks , Sjoerd Stallinga , Albert Hendrik Jan Immink , Stein Kuiper , Ming Song Chen
IPC分类号： G11B7/00
CPC分类号： G11B7/1369 , G11B7/0909 , G11B7/1381
摘要： An optical scanning device (1) includes a radiation source (7), a detector (23) and a beam splitter (9). The radiation source (7) provides an incident radiation beam (4, 20) along a first optical path (19a) for scanning an information layer (2) of an optical record carrier (3). The detector (23) detects at least a portion of the radiation beam (22) reflected from the optical record carrier (3). The beam splitter (9) transmits the incident radiation beam (4) received from the radiation source along the first optical path (19a) towards the optical record carrier. The beam splitter (9) also transmits the reflected beam (22) received from the optical record carrier (3) along a second, different optical path (19b) towards the detector. The optical scanning device further includes a beam-deflecting element (30; 130; 230; 330; 630; 830; 930) positioned on the second optical path (19b) between the beam splitter (9) and the detector (23). The beam-deflecting element (30; 130; 230; 330; 630; 830; 930) is arranged to controllably deflect the path of the reflected radiation beam (22) for adjusting the lateral position of said reflected radiation beam incident upon the detector (23) over a predetermined range.
摘要翻译：光学扫描装置（1）包括辐射源（7），检测器（23）和分束器（9）。辐射源（7）沿着第一光路（197）提供入射辐射束（4,20），用于扫描光学记录载体（3）的信息层（2）。检测器（23）检测从光学记录载体（3）反射的辐射束（22）的至少一部分。分束器（9）将从辐射源接收的入射辐射束（4）沿着第一光路（21a）传送到光学记录载体。分束器（9）还将从光学记录载体（3）接收的反射光束（22）沿着第二不同的光路（20b）传送到检测器。光学扫描装置还包括位于分束器（9）和检测器（23）之间的位于第二光路（19b）上的光束偏转元件（30; 130; 230; 330; 630; 830; 930）。光束偏转元件（30; 130; 230; 330; 630; 830; 930）被布置成可控地偏转反射的辐射束（22）的路径，用于调节入射到检测器上的所述反射的辐射束的横向位置（ 23）超过预定范围。

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