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    • 4. 发明申请
    • ILLUMINATION SYSTEM FOR SPOT ILLUMINATION WITH REDUCED SYMMETRY
    • 具有减少对称性的点光照射的照明系统
    • WO2010146512A1
    • 2010-12-23
    • PCT/IB2010/052611
    • 2010-06-11
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.KURT, RalphTUKKER, Teunis Willem
    • KURT, RalphTUKKER, Teunis Willem
    • F21V7/00F21K99/00F21Y101/02
    • F21K9/00F21K9/62F21Y2115/10
    • An illumination system (1;30;40;60;70;90) for spot illumination comprising :a tubular reflector (3;31;61;91) with a reflective inner surface, the tubular reflector having an entrance aperture(9), and an exit aperture(10) being larger than the entrance aperture; and a light-source array (2;33;41;63;71;93) comprising a plurality of light-sources arranged in a physical light-source configuration to emit light into the tubular reflector at the entrance aperture thereof. The tubular reflector (3;31;61;91) comprises a plurality of reflective surfaces (14a-g) each being arranged to provide a primary mirror image of the light-source array, the primary mirror image having a primary mirror image light- source configuration; and the light-source array (2;33;41;63;71;93) is configured in such a way that, for each of the primary mirror image, at least half of all secondary mirror images of the light-source array resulting from reflection of the primary mirror image by the reflective surfaces (14a-g) exhibit secondary mirror image light-source configurations that are different from the physical light-source configuration.
    • 一种用于点照射的照明系统(1; 30; 40; 60; 70; 90),包括:具有反射内表面的管状反射器(3; 31; 61; 91),所述管状反射器具有入口孔(9) 和大于入口孔的出口孔(10); 以及包括以物理光源配置布置的多个光源的光源阵列(2; 33; 41; 63; 71; 93),以在其入射孔处将光发射到管状反射器中。 管状反射器(3; 31; 61; 91)包括多个反射表面(14a-g),每个反射表面被设置成提供光源阵列的主镜像,主镜像具有主镜像发光元件, 源配置; 并且所述光源阵列(2; 33; 41; 63; 71; 93)被配置成使得对于每个所述主镜像,所述光源阵列的所有副镜像的至少一半得到 由反射面(14a-g)反射主镜像显示与物理光源构造不同的二次镜像光源配置。
    • 6. 发明申请
    • METHOD AND APPARATUS FOR MEASURING THE DEPTH OF A DATA RECORD LAYER IN AN INFORMATION RECORD MEDIUM
    • 用于测量数据记录层在信息记录介质中的深度的方法和装置
    • WO2005043528A2
    • 2005-05-12
    • PCT/IB2004/003525
    • 2004-10-27
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.STALLINGA, SjoerdTUKKER, Teunis Willem
    • STALLINGA, SjoerdTUKKER, Teunis Willem
    • G11B19/12
    • G11B19/12G11B7/13927G11B2007/0013
    • Apparatus and method for measuring the depth of data record layers of an optical storage disc having a cover layer of thickness d, an entrance surface (S), and, for example, a first data layer (L0), a second data layer (L1) and a third data layer (L2). The optical apparatus comprises a spherical aberration compensator (SA), and an objective lens (OL) mounted in an actuator (AC), the actuator (AC) receiving a current I and being arranged and configured to move the objective lens (OL) in the z (axial) axis relative to the optical storage disc. Light incident on the objective lens (OL) is converged into a cone-like beam such that it is focussed on one of the data layers (D1). A control signal is used to keep the scanning spot focussed on the data layer (L1). This control signal is the focus error signal (FES) and is provided by the actuator drive (AC). In order to provide the spherical aberration compensator (SA) with right control signal, the depth of each data layer must be measured and means are provided for measuring the depth of the data layer(s) of a single- or multi-layer disc, and this achieved by using the distance between zero-crossings of the focus error signal (FES).
    • 用于测量具有厚度d的覆盖层,入射表面(S)以及例如第一数据层(L0),第二数据层(L1)的光学存储盘的数据记录层的深度的装置和方法 )和第三数据层(L2)。 光学装置包括球面像差补偿器(SA)和安装在致动器(AC)中的物镜(OL)),致动器(AC)接收电流I并被布置和配置成将物镜(OL) 相对于光存储盘的z(轴)轴。 入射在物镜(OL)上的光会聚成锥形光束,使其聚焦在数据层(D1)之一上。 使用控制信号将扫描点聚焦在数据层(L1)上。 该控制信号是聚焦误差信号(FES),由致动器驱动(AC)提供。 为了提供具有右控制信号的球面像差补偿器(SA),必须测量每个数据层的深度,并提供用于测量单层或多层盘的数据层的深度的装置, 并且通过使用聚焦误差信号(FES)的过零点之间的距离来实现。