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    • 5. 发明授权
    • Optical feedback system with improved accuracy
    • 光学反馈系统,精度提高
    • US07482567B2
    • 2009-01-27
    • US11575515
    • 2005-08-18
    • Christoph Gerard August HoelenJohannes Petrus Maria AnsemsEdwin Van Lier
    • Christoph Gerard August HoelenJohannes Petrus Maria AnsemsEdwin Van Lier
    • G01J1/32H01J3/14
    • G01J1/04F21K9/62F21V23/0457F21Y2113/13F21Y2115/10G01J1/0407G01J1/32G01J3/505G01J3/513G01J2001/4247H01L25/0753H01L25/167H01L2924/0002H01L2924/00
    • The illumination system has a plurality of light emitters (R, G, B) and a light-collimator (1) for collimating light emitted by the light emitters. Light propagation in the light-collimator is based on total internal reflection (TIR) towards a light-exit window (4) of the light-collimator. At least one light sensor (8) for optical feedback is placed outside the light-collimator and is arranged to receive light emitted by the light emitters exclusively through reflection at the light-exit window of the light-collimator. Preferably, the light sensor is placed substantially coplanar with the light emitters. Preferably, a side wall (35) of the light-collimator is provided with a protruding portion (9) for guiding the light reflected at the light-exit window of the light-collimator towards the light sensor. Preferably, the illumination system is provided with a reflector (12). Preferably, the illumination system comprises a holographic diffuser (17). Accurate sensing of the color mixing of light emitted by the illumination system is obtained.
    • 照明系统具有多个发光体(R,G,B)和用于准直由发光体发射的光的光准直器(1)。 在光准直仪中的光传播基于朝向光准直仪的光出射窗(4)的全内反射(TIR)。 用于光学反馈的至少一个光传感器(8)被放置在光准直器外部,并且被布置成仅通过光准直器的光出射窗处的反射来接收由发光体发射的光。 优选地,光传感器被放置成与发光体基本上共面。 优选地,光准直仪的侧壁(35)设置有用于将在光准直器的光出射窗处反射的光朝向光传感器引导的突出部分(9)。 优选地,照明系统设置有反射器(12)。 优选地,照明系统包括全息漫射器(17)。 获得由照明系统发射的光的颜色混合的精确感测。
    • 9. 发明申请
    • ILLUMINATION SYSTEM
    • 照明系统
    • US20090283780A1
    • 2009-11-19
    • US11721169
    • 2005-12-05
    • Johannes Petrus Maria AnsemsChristoph Gerard August Hoelen
    • Johannes Petrus Maria AnsemsChristoph Gerard August Hoelen
    • H01L33/00
    • H01L25/0753H01L33/60H01L2224/48091H01L2224/73265H01L2924/09701H01L2924/3011H05B33/0821H05B33/0857H01L2924/00014H01L2924/00
    • An illumination system has a mounting substrate (4) for mounting and electrically contacting a plurality of light-emitting diodes (R, A, G, B). A first category of the light-emitting diodes (G, B) comprises a first translucent substrate (11) provided with an active layer (1) on an outer surface (13) of the first translucent substrate facing the mounting substrate (4); electrical contacts are provided at a side facing the mounting substrate. A second category of the light-emitting diodes (R, A) comprises an active layer (2) arranged on a second translucent substrate (12); at least one electrical contact is provided at a side facing away from the mounting substrate. Each light-emitting diode of the first category is provided on a first sub mount (21). Each light-emitting diode of the second category is provided on a second sub mount (22). The first and second sub mount are provided on the mounting substrate.
    • 照明系统具有用于安装和电接触多个发光二极管(R,A,G,B)的安装基板(4)。 发光二极管(G,B)的第一类包括在面向安装基板(4)的第一透光性基板的外表面(13)上设置有有源层(1)的第一透光性基板(11)。 电接点设置在面向安装基板的一侧。 第二类发光二极管(R,A)包括布置在第二透光性基板(12)上的有源层(2)。 在背离安装基板的一侧设置至少一个电触点。 第一类别的每个发光二极管设置在第一子安装座(21)上。 第二类别的每个发光二极管设置在第二子安装座(22)上。 第一和第二子安装件设置在安装基板上。
    • 10. 发明申请
    • ILLUMINATION SYSTEM
    • 照明系统
    • US20090225400A1
    • 2009-09-10
    • US11721091
    • 2005-12-02
    • Johannes Petrus Maria AnsemsChristoph Gerard August Hoelen
    • Johannes Petrus Maria AnsemsChristoph Gerard August Hoelen
    • G02F1/29
    • F21V14/003F21Y2115/10G02B1/06G02B5/0215G02B5/0278G02B26/004
    • An illumination system has a plurality of light emitters (R, G, B) and a light-collimator (1) for collimating light emitted by the light emitters. The light-collimator is arranged around a longitudinal axis (25) of the illumination system. A light-exit window (5) of the light-collimator at a side facing away from the light-emitters is provided with a translucent cover plate (11) provided with a switchable optical element (15) based on electro wetting. The light-exit window of the light-collimator or the translucent cover plate is provided with a light-dispersing structure (7) for broadening an angular distribution of the light emitted by the illumination system. The optical element (15) being switchable in a mode of operation reducing the effect of the light-dispersing structure (7). Preferably, the effect of the light-dispersing structure is substantially counteracted when the switchable optical element operates in the mode of operation reducing the effect of the light-dispersing structure.
    • 照明系统具有多个发光体(R,G,B)和用于准直由发光体发射的光的光准直器(1)。 光准直器围绕照明系统的纵向轴线(25)布置。 在远离发光体的一侧的光准直器的出光窗(5)设置有基于电润湿设置有可切换光学元件(15)的半透明盖板(11)。 光准直仪或半透明盖板的光出射窗设置有用于使由照明系统发射的光的角度分布变宽的光分散结构(7)。 光学元件(15)可以以减少光分散结构(7)的效果的操作模式切换。 优选地,当可切换光学元件以降低光散射结构的效果的操作模式操作时,光散射结构的效果基本抵消。