公开(公告)号：US20050201218A1

公开(公告)日：2005-09-15

申请号：US10521658

申请日：2003-07-02

申请人： Michael Adrianus Van Der Aa ,  Gerardus Lucien Jansen ,  Gerard Nijsse ,  Johannes Joseph Schleipen ,  Aukje Kastelijn ,  Frank Penning ,  Willem Ophey

发明人： Michael Adrianus Van Der Aa ,  Gerardus Lucien Jansen ,  Gerard Nijsse ,  Johannes Joseph Schleipen ,  Aukje Kastelijn ,  Frank Penning ,  Willem Ophey

IPC分类号： G02B26/10 ,  G02B26/12 ,  G11B7/085 ,  G11B7/135 ,  G11B7/00

CPC分类号： G11B7/1359 ,  G02B26/108 ,  G11B7/08576 ,  G11B7/1362 ,  G11B7/1398

摘要： An optical scanning device for scanning an information layer of an optical record carrier and including a rotary aim (2; 102; 202; 302; 402; 502) which is arranged to swing about a rotation axis (CR) to alter an angular position of the rotary arm about the rotation axis; a detector arrangement (10) arranged separate from the rotary arm (2; 102; 202; 302; 402; 502) for detecting a radiation beam spot, the radiation beam spot (40; 140; 240; 340; 440; 540) having an angular disposition; a first reflective surface (4; 104; 204; 304; 404; 504) attached to the rotary arm (2; 102; 202; 302; 402; 502); a second reflective surface (6; 106; 206; 306; 406; 506) attached to the rotary arm (2; 102; 302; 402; 502); a first light path (LP 1; LP 1 O 1; LP201; LP301; LP401; LP501) running from a location on the record carrier to said first reflective surface; a second light path (LP2; LP102; LP202; LP302; LP402; LP502) running from said first reflective surface to said second reflective surface; a third light path (LP3; LP103; LP203; LP303; LP403; LP503) running from said second reflective surface to said detector arrangement (10). The rotary arm includes at least one optical inversion element (52; 54; 56; 58; 64; 66) arranged such that a dependence between variation of the angular disposition of the radiation beam spot and variation of the angular position of the rotary arm is reduced.

摘要翻译： 一种用于扫描光学记录载体的信息层并包括旋转瞄准镜（2; 102; 202; 302; 402; 502）的光学扫描装置，其被设置成围绕旋转轴线（CR）摆动以改变角度位置 旋转臂围绕旋转轴线; 与所述旋转臂（2; 102; 202; 302; 402; 502）分开布置的用于检测辐射束点的检测器装置（10），所述辐射束点（40; 140; 240; 340; 440; 540）具有 角度配置; 附接到旋转臂（2; 102; 202; 302; 402; 502）的第一反射表面（4; 104; 204; 304; 404; 504） 附接到旋转臂（2; 102; 302; 402; 502）的第二反射表面（6; 106; 206; 306; 406; 506） 从记录载体上的位置到所述第一反射表面的第一光路（LP 1; LP 1 O 1; LP 201; LP 301; LP 401; LP 501） 从所述第一反射表面延伸到所述第二反射表面的第二光路（LP 2; LP 102; LP 202; LP 302; LP 402; LP 502） 从所述第二反射表面延伸到所述检测器装置（10）的第三光路（LP 3; LP 103; LP 203; LP 303; LP 403; LP 503）。 旋转臂包括至少一个光学反转元件（52; 54; 56; 58; 64; 66），其布置成使得辐射束点的角度配置的变化与旋转臂的角位置的变化之间的依赖关系是 减少

公开(公告)号：US20060077866A1

公开(公告)日：2006-04-13

申请号：US10540707

申请日：2003-12-18

申请人： Michael Adrianus Van Der Aa ,  Gerardus Jansen ,  Gerard Nijsse ,  Johannes Joseph Schleipen

发明人： Michael Adrianus Van Der Aa ,  Gerardus Jansen ,  Gerard Nijsse ,  Johannes Joseph Schleipen

IPC分类号： G11B7/00

CPC分类号： G11B7/08576 ,  G11B7/0903 ,  G11B7/1353 ,  G11B7/1362

摘要： An optical scanning device for scanning tracks of an optical record carrier (OD) using a radiation beam, the device including an optical head (16), defining an optical axis (OA), for converging the radiation beam to a spot when scanning the record carrier; and a rotary arm (2) for moving the optical head across the record carrier. The device further comprises a rotatably mounted diffraction grating (8) for generating satellite beams for performing multi-spot tracking. Rotation of the grating is arranged to move the satellite beams, relative to the optical axis of the optical head, in correspondence with rotation of the rotary arm.

摘要翻译： 一种用于使用辐射束扫描光学记录载体（OD）的轨道的光学扫描装置，该装置包括限定光轴（OA）的光学头（16），用于在扫描记录时将辐射束会聚到一个点 载体 以及用于使光头移动通过记录载体的旋转臂（2）。 该装置还包括可旋转地安装的衍射光栅（8），用于产生用于执行多点跟踪的卫星光束。 光栅的旋转被设置成相对于旋转臂的旋转相对于光学头的光轴移动卫星光束。