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2. 发明申请

US20050201218A1 Optical scanning device 失效
标题翻译：光学扫描装置
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

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