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公开(公告)号：US4773055A
公开(公告)日：1988-09-20
申请号：US119306
申请日：1987-11-06
CPC分类号： G11B7/0956 , G11B7/0925
摘要： An electro-optical apparatus comprising an objective (7) scans an optical disc (3) having a transparent protective layer (5) by means of a radiation beam (10) which, through the transparent layer, is focussed on a reflecting recording surface (4). The objective moves along the optical axis (19) for focussing the radiation beam on the recording layer and moreover performs limited pivotal movements. The position of the optical axis of the objective is corrected for obliquity of the surface of the optical disc, correction means (22A, B) being provided to tilt the objective through a correction angle, so that the angle between the optical axis and the normal to the disc surface is reduced.
摘要翻译： 一种电光设备，包括物镜（7）借助于辐射束（10）扫描具有透明保护层（5）的光盘（3），所述辐射束（10）通过所述透明层聚焦在反射记录表面 4）。 物镜沿着光轴（19）移动，用于将辐射束聚焦在记录层上，而且进行有限的枢转运动。 物镜的光轴的位置被校正为光盘的表面的倾斜度，校正装置（22A，B）被设置成通过校正角度倾斜物镜，使得光轴和法线之间的角度 到盘面减少。
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公开(公告)号：US4747668A
公开(公告)日：1988-05-31
申请号：US889020
申请日：1986-07-24
申请人： Karl-Hanns Meyer , Wilhelmus A. H. Gijzen , Willy J. J. Aerts , Gerard E. Van Rosmalen , Leonhard Honds
发明人： Karl-Hanns Meyer , Wilhelmus A. H. Gijzen , Willy J. J. Aerts , Gerard E. Van Rosmalen , Leonhard Honds
CPC分类号： G11B7/0935
摘要： An optical scanning unit with an objective for focussing a beam into a scanning spot on the surface of an information carrier and an electromagnetic drive for continuous correction of the position of the objective with respect to the information carrier. The objective is mounted in a movable ring-shaped magnetic body of a permanent-magnetic material which is arranged coaxially about the optical axis and which has magnetic poles at the axial ends. The drive is provided with sets of fixed coils which interact with the magnetic body via an air gap. Each set of coils has a first segmental coil arrangement having two active coil parts extending parallel in the peripheral direction of the magnetic body and located in the vicinity of the axial ends of the centrally positioned magnetic body. The unit is further equipped with at least one second coil arrangement which is positioned at least partially between the active coil parts of the above-mentioned first segmental arrangement.
摘要翻译： 一种具有将光束聚焦到信息载体表面上的扫描点的光学扫描单元和用于相对于信息载体连续校正物镜位置的电磁驱动器。 该目的安装在永久磁性材料的可移动环形磁体中，该永久磁性材料绕光轴同轴布置并且在轴向端部具有磁极。 驱动器设有一组通过气隙与磁体相互作用的固定线圈。 每组线圈具有第一节段线圈装置，其具有两个在磁体的周向平行延伸并且位于中心定位的磁体的轴向端附近的有源线圈部分。 该单元还配备有至少一个第二线圈装置，其至少部分地位于上述第一分段装置的有效线圈部分之间。
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公开(公告)号：US4694442A
公开(公告)日：1987-09-15
申请号：US749149
申请日：1985-06-26
IPC分类号： G02B26/10 , G02B7/00 , G11B7/0037 , G11B7/085 , G11B7/09 , G11B7/095 , G11B17/32 , G11B19/20 , G11B7/00
CPC分类号： G11B17/32 , G11B19/2009 , G11B7/0037 , G11B7/08582 , G11B7/0956
摘要： An electro-optical device for recording and/or reading recording tracks in a recording surface of an optically readable disk by means of a radiation beam, includes a frame (43), a turntable supporting means (45) for a turntable (55) which is rotatable about an axis of rotation (57), an objective supporting means for an objective (15) having an optical axis (24), a focussing actuator (24) for moving the objective along the optical axis, and guide means for moving the objective and/or the turntable relative to each other between a first position, in which the optical axis and the axis of rotation are situated nearer each other, and a second position, in which these axes are situated more remote from each other. In the case of an oblique position of said surface of the disk, correction means reduce the angle between the optical axis and the normal to the disc surface at the location where the optical axis intersects the disk surface. The correction means includes a tilting device (63) for tilting the turntable supporting means and/or objective supporting means during recording and/or reading of the recording tracks about a pivotal axis (99) which extends at least substantially transversely of the plane defined by the optical axis and the axis of rotation and which, at least in the second position of the objective and the turntable, is situated between the axis of rotation and the optical axis.
摘要翻译： 一种用于通过辐射束在光学可读盘的记录表面中记录和/或读取记录轨道的电光装置，包括框架（43），用于转盘（55）的转台支撑装置（45） 可绕旋转轴线（57）旋转，用于具有光轴（24）的物镜（15）的物镜支撑装置，用于沿着光轴移动物镜的聚焦致动器（24） 在光轴和旋转轴线彼此靠近的第一位置和第二位置之间，相对于彼此的物镜和/或转盘以及第二位置，其中这些轴彼此更远。 在盘的所述表面的倾斜位置的情况下，校正装置在光轴与盘表面相交的位置处减小光轴与盘表面的法线之间的角度。 校正装置包括倾斜装置（63），用于在围绕枢转轴线（99）记录和/或读取记录轨道期间倾斜转盘支撑装置和/或物镜支撑装置，该枢转轴线至少基本上横向于由 光轴和旋转轴线，并且至少在物镜和转台的第二位置处，位于旋转轴线和光轴之间。
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公开(公告)号：US4783775A
公开(公告)日：1988-11-08
申请号：US889149
申请日：1986-07-24
申请人： Wilhelmus A. H. Gijzen , Leonhard Honds , Karl-Hanns Meyer , Robert N. J. Van Sluys , Gerard E. Van Rosmalen
发明人： Wilhelmus A. H. Gijzen , Leonhard Honds , Karl-Hanns Meyer , Robert N. J. Van Sluys , Gerard E. Van Rosmalen
CPC分类号： G11B7/0935 , G11B7/093
摘要： An optical scanning unit with an objective for the focussing a beam of radiation along an optical axis into a scanning spot on the surface of an information carrier. The scanning unit also has an electromagnetic drive for correcting the position of the objective with respect to the information carrier. The drive has an objective mount supported in an annular, moving magnetic member which is axially magnetized and is arranged coaxially about the optical axis. The drive is further provided with fixed coils which interact with the magnetic member via an air gap. The fixed coils are arranged along at least three radial planes which are normal to the optical axis. Two planes lie in the area of the axial ends of the centrally positioned magnetic member and the third central plane which extends between the two outer radial planes.
摘要翻译： 一种光学扫描单元，其具有用于将沿着光轴的辐射束聚焦到信息载体表面上的扫描点中的目的。 扫描单元还具有用于校正物体相对于信息载体的位置的电磁驱动器。 驱动器具有支撑在环形的可移动磁性构件中的物镜，其被轴向磁化并且围绕光轴同轴布置。 驱动器还设置有经由气隙与磁性构件相互作用的固定线圈。 固定线圈沿着与光轴垂直的至少三个径向平面布置。 两个平面位于中心定位的磁性构件的轴向端部区域和在两个外部径向平面之间延伸的第三中心平面。
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5.发明授权Bearing arrangement for an objective of an optical apparatus for writing and/or reading recording tracks by means of a radiation beam 失效用于通过辐射束写入和/或读取记录轨道的光学装置的目的的轴承装置
公开(公告)号：US4394755A
公开(公告)日：1983-07-19
申请号：US207510
申请日：1980-11-17
摘要： An optical apparatus (1) for reading a recording track on an optical disc (3) comprises an objective (6) supported by a combined bearing arrangement which permits translations (12) of the objective for focussing a light beam (2) on the disc and pivotal movements (13, 14) for following the recording track in a radial and eventually also a tangential direction. The combined bearing arrangement comprises a plain bearing with a stationary member (17) having a convex outer surface (18) and a cylindrical moving member (19) which relative to the stationary member moves in a sliding and a pivoting fashion.
摘要翻译： 用于读取光盘（3）上的记录轨道的光学装置（1）包括由组合的轴承装置支撑的物镜（6），该组合轴承装置允许用于将光束（2）聚焦在盘上的物镜的平移（12） 以及用于沿径向并且最终也是切向方向跟随记录轨道的枢转运动（13,14）。 组合的轴承装置包括具有带有凸形外表面（18）的固定构件（17）和相对于固定构件的圆柱形移动构件（19）的滑动轴承以滑动和枢转方式移动。
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6.发明授权X-ray analysis apparatus and scanning unit suitable for use in such an apparatus 失效X射线分析装置和适用于这种装置的扫描装置
公开(公告)号：US5438613A
公开(公告)日：1995-08-01
申请号：US993342
申请日：1992-12-18
申请人： Wilhelmus A. H. Gijzen , Walterus A. L. A. Van Egeraat , Johannes P. M. Van Alen , Albert Visscher
发明人： Wilhelmus A. H. Gijzen , Walterus A. L. A. Van Egeraat , Johannes P. M. Van Alen , Albert Visscher
IPC分类号： G01N23/20 , G01N23/207 , G01N23/22 , G01N23/223 , G01N23/225 , G21K1/06 , G01T1/36
CPC分类号： G01N23/207
摘要： An X-ray analysis apparatus includes a scanning unit (1) with an X-ray source (3), a crystal holder (9) and an X-ray detection system (5) provided with an X-ray detector (7). The crystal holer (9) can be rectilinearly displaced in a fixed radiation pick-up direction (35) relative to the X-ray source (3). The crystal holder (9) and the X-ray detector (7) are mechanically coupled to one another via a plate (21) which can be driven by means of a motion mechanism. The X-ray source (3), the X-ray detector (7) and the crystal holder (9) remain positioned on a Rowland circle (11) during the displacement. The motion mechanism has a first guide (23) and a second guide (25). The drive direction of the first guide (23) encloses an acute angle .alpha. relative to the fixed pick-up direction (35).
摘要翻译： X射线分析装置包括具有X射线源（3）的扫描单元（1），具有X射线检测器（7）的晶体保持器（9）和X射线检测系统（5）。 水晶钻（9）可相对于X射线源（3）以固定的辐射拾取方向（35）直线位移。 晶体保持器（9）和X射线检测器（7）通过可通过运动机构驱动的板（21）彼此机械耦合。 在位移期间，X射线源（3），X射线检测器（7）和晶体保持器（9）保持定位在Rowland圆（11）上。 运动机构具有第一引导件（23）和第二引导件（25）。 第一引导件（23）的驱动方向相对于固定的拾取方向（35）包围锐角α。
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公开(公告)号：US4833666A
公开(公告)日：1989-05-23
申请号：US131147
申请日：1987-12-10
CPC分类号： G11B17/0565 , G11B19/2009 , G11B25/043
摘要： Disc player includes a housing with a frame (11) carrying a scanning device and a disc-drive means for driving discs of different types. Loading mechanism includes a drawer (51) which is movable along guide means between an extended position and a retracted position to move a disc towards and away from the disc-drive means where a movable disc-pressure member (99) presses the disc against the disc-drive means. The disc-drive means comprises a first turntable which is fixedly supported relative to the frame and a second turntable (19) which is movable relative to the frame and can be positioned on the first turntable. A movable holder (21) can be actuated by the loading mechanism to position the second turntable on and remove it from the first turntable.
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公开(公告)号：US4767187A
公开(公告)日：1988-08-30
申请号：US017503
申请日：1987-02-24
CPC分类号： G11B7/0932 , G11B7/093
摘要： The invention relates to an electro-optical device for optically scanning an information carrier, comprising a stationary frame, a movable optical holder, in which an objective having an optical axis is eccentrically mounted, a first electromagnetic actuator for translating the optical holder along a pivotal axis and a second electromagnetic actuator for pivoting the optical holder about this pivotal axis. Each of the actuators comprises a first actuator element secured to the frame and a second actuator element secured to the holder, the first and the second actuator elements cooperating with each other via air gaps. The optical holder is formed with a bore which extends parallel to the optical axis and in which the second actuator element of the second actutor is secured and in which the first actuator element which cooperate with said second actuator element extends with clearance. The second actuator element of the second actuator also functions as the balancing mass.
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公开(公告)号：US4376572A
公开(公告)日：1983-03-15
申请号：US229419
申请日：1981-01-29
CPC分类号： G11B7/0925 , G02B7/1821
摘要： A pivoting mirror device for an apparatus for optically reading information tracks on an information carrier comprises a pivoting mirror (1) which is pivotable about one or more pivoting axes (5, 6) with the aid of a mirror bearing arrangement (9), which arrangement comprises a rigid bearing support (10) and an elastic bearing (13) made of a rubber-like material, which is connected both to the pivoting mirror and to the bearing support and which partly surrounds the bearing support. In order to obtain a suitable ratio between the rigidity of the pivoting mirror bearing in desired pivoting directions and the rigidity in undesired articulating directions, the portion (14) of the bearing support located in the elastic material has a cross-section which varies from a minimum transverse dimension at the end (11) of the bearing support near the pivoting mirror to a maximum transverse dimension at a location which is more remote from the pivoting mirror (15). (FIG. 1).
摘要翻译： 用于在信息载体上光学读取信息轨迹的设备的旋转镜装置包括枢转反射镜（1），该反射镜可借助于反射镜轴承装置（9）绕一个或多个枢转轴线（5,6）枢转， 布置包括刚性轴承支撑件（10）和由橡胶状材料制成的弹性轴承（13），其连接到枢转反射镜和轴承支撑件，并且部分地围绕轴承支撑件。 为了在所需枢轴方向上获得枢转反射镜轴承的刚度与不希望的铰接方向上的刚性之间的合适比例，位于弹性材料中的轴承支撑件的部分（14）具有从 靠近枢转反射镜的轴承支座的端部（11）处的最小横向尺寸在远离枢转反射镜（15）的位置处的最大横向尺寸。 （图。1）。
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