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    • 33. 发明申请
    • ILLUMINATION SYSTEM FOR SPOT ILLUMINA
    • 发光照明系统
    • US20120087116A1
    • 2012-04-12
    • US13378087
    • 2010-06-09
    • Teunis Willem TukkerEgbert LenderinkRalph KurtMark Eduard Johan Sipkes
    • Teunis Willem TukkerEgbert LenderinkRalph KurtMark Eduard Johan Sipkes
    • F21V7/00F21V9/00
    • F21V7/09F21K9/62F21V3/04F21V7/041F21Y2105/10F21Y2105/12F21Y2115/10
    • An illumination system (10) for spot illumination comprising a tubular reflector (2) with a reflective inner surface, the tubular reflector (2) having an entrance aperture (7) and an exit aperture (8) being larger than the entrance aperture (7); and a light-source array (1) comprising a plurality of light-sources (13a-c; 30a-d, 31a-d, 32a-d) arranged to emit light into the tubular reflector (2) at the entrance aperture (7) thereof. At least one of the tubular reflector (2) and the light-source array (1) is configured in such a way that each symmetry state of the light-source array (1) is different from any symmetry state of the tubular reflector (2). By avoiding coinciding symmetry states, the occurrence of preferred directions of the emitted light can be reduced, whereby the spatial homogeneity with respect to intensity and, where applicable, color of the emitted light can be improved.
    • 一种用于点照明的照明系统(10),包括具有反射内表面的管状反射器(2),所述管状反射器(2)具有大于入口孔(7)的入口孔(7)和出口孔(8) ); 以及包括多个光源(13a-c; 30a-d,31a-d,32a-d)的光源阵列(1),其布置成在入射孔(7)处将光发射到管状反射器(2) )。 管状反射器(2)和光源阵列(1)中的至少一个被配置成使得光源阵列(1)的每个对称状态不同于管状反射器(2)的任何对称状态 )。 通过避免一致的对称状态,可以减少发射光的优选方向的发生,由此可以改善相对于强度的空间均匀性,并且在适用的情况下可以改善发射光的颜色。
    • 35. 发明申请
    • OPTICAL SCANNING DEVICE
    • 光学扫描装置
    • US20100046347A1
    • 2010-02-25
    • US11814012
    • 2006-01-18
    • Teunis Willem TukkerJoris Jan Vrehen
    • Teunis Willem TukkerJoris Jan Vrehen
    • G11B7/135
    • G11B7/1275G11B7/1367G11B7/13922G11B2007/0006
    • An optical scanning device for scanning optical record carriers, the optical record carriers including a first optical record carrier, a second optical record carrier and a third optical record carrier, the scanning device including a radiation source system (7) for producing first, second and third radiation beams for scanning said first, second and third record carriers, respectively, in first, second and third scanning modes, said first, second and third radiation beams having different predetermined wavelengths, the scanning device comprising an objective lens and an optical compensator, the optical compensator having a non-periodic phase structure through which each of said first, second and third radiation beams are arranged to pass, said non-periodic phase structure including a plurality of stepped annular zones separated by steps, the zones forming a non-periodic radial pattern, the stepped annular zones introducing first, second and third different wavefront modifications into at least part of the first, second and third radiation beams, respectively, characterized in that said objective lens is arranged to apply a focus offset when scanning said first record carrier, which focus offset is arranged to provide a phase modification which, in combination with said optical compensator, compensates spherical aberration in the first radiation beam.
    • 一种用于扫描光学记录载体的光学扫描装置,所述光学记录载体包括第一光学记录载体,第二光学记录载体和第三光学记录载体,所述扫描装置包括辐射源系统(7),用于产生第一,第二和 用于分别以第一,第二和第三扫描模式扫描所述第一,第二和第三记录载体的第三辐射束,所述第一,第二和第三辐射束具有不同的预定波长,所述扫描装置包括物镜和光学补偿器, 所述光学补偿器具有非周期相位结构,所述第一,第二和第三辐射束中的每一个被布置成通过,所述非周期性相位结构包括由台阶分开的多个阶梯状环形区域, 周期性径向图案,阶梯形环形区域引入第一,第二和第三不同波前修改 分别是第一,第二和第三辐射束的至少一部分,其特征在于,所述物镜被布置成在扫描所述第一记录载体时施加聚焦偏移,所述聚焦偏移被布置成提供相位改变,其结合 所述光学补偿器补偿第一辐射束中的球面像差。