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    Camera flash with improved color balance
    7.
    发明授权
    Camera flash with improved color balance 有权
    相机闪光灯具有改善的色彩平衡

    公开(公告)号：US07463825B2

    公开(公告)日：2008-12-09

    申请号：US11248795

    申请日：2005-10-10

    申请人： Rene P. Helbing ,  Kee Yean Ng ,  Janet Bee Yin Chua ,  Wooi Kin Goon ,  Thye Linn Mok ,  Gim-Eng Chew

    发明人： Rene P. Helbing ,  Kee Yean Ng ,  Janet Bee Yin Chua ,  Wooi Kin Goon ,  Thye Linn Mok ,  Gim-Eng Chew

    IPC分类号： G03B15/06 ,  G03B15/03

    CPC分类号： G03B15/0442

    摘要： A camera flash is disclosed for producing a warm light having a desired color temperature. In one embodiment, the flash has a xenon flash component producing a light with a spectrum having a color temperature at a higher Kelvin rating than the warm light, and a light emitting diode flash component producing a light with a spectrum having a color temperature at a lower Kelvin rating than the warm light. The color temperature of the light of the xenon flash component and the color temperature of the light of the light emitting diode flash component together produce the warm light having the desired color temperature.

    摘要翻译： 公开了一种用于产生具有所需色温的暖光的相机闪光灯。 在一个实施例中，闪光灯具有产生具有光谱的光的氙闪光组件，该光谱具有比暖光更高的开尔文等级的色温，并且产生具有色温为a的光谱的光的发光二极管闪光组件 开尔文评级低于暖灯。 氙闪光部件的光的色温和发光二极管闪光部件的色温一起产生具有所需色温的暖光。

    Indicator detection using transverse emissions
    8.
    发明申请
    Indicator detection using transverse emissions 有权
    使用横向排放的指标检测

    公开(公告)号：US20080180673A1

    公开(公告)日：2008-07-31

    申请号：US11701292

    申请日：2007-01-31

    申请人： Nicholas M. Sampas ,  Rene P. Helbing ,  Bo U. Curry ,  Julie E. Fouquet ,  Carol T. Schembri

    发明人： Nicholas M. Sampas ,  Rene P. Helbing ,  Bo U. Curry ,  Julie E. Fouquet ,  Carol T. Schembri

    IPC分类号： G01N21/75

    CPC分类号： G01N21/648 ,  G01N21/7703 ,  G01N2021/7709 ,  G01N2021/7786

    摘要： A test system includes an optical medium, a binding agent capable of capturing a target complex, and a light detector. The optical medium provides a light path, and the binding agent is positioned to hold the target complex in an evanescent field created by propagation of light along the light path. The complex interacts with the evanescent field and emits light that the detector positioned to detect. The optical medium and the detector can be included in an optical integrated circuit where detected light passes through the optical medium transverse to the direction of the light path.

    摘要翻译： 测试系统包括光学介质，能够捕获目标复合物的粘合剂和光检测器。 光学介质提供光路，并且粘合剂被定位成将目标复合体保持在通过沿着光路的光的传播产生的消逝场中。 复合体与ev逝场相互作用并发射检测器定位以检测的光。 光学介质和检测器可以包括在光学集成电路中，其中检测到的光穿过光学介质横向于光路的方向。

    Ferroelectric liquid crystal light doubler with temperature and voltage controlled tilt angle
    10.
    发明授权
    Ferroelectric liquid crystal light doubler with temperature and voltage controlled tilt angle 有权

    公开(公告)号：US06198523B1

    公开(公告)日：2001-03-06

    申请号：US09429246

    申请日：1999-10-28

    申请人： Rene P. Helbing

    发明人： Rene P. Helbing

    IPC分类号： C09K1902

    CPC分类号： G02B5/3025 ,  G02F1/133382 ,  G02F1/13471 ,  G02F1/141 ,  G09G3/36 ,  G09G3/3614 ,  G09G3/3651 ,  G09G2300/0809 ,  G09G2320/041 ,  G09G2320/0606 ,  G09G2320/066

    摘要： A ferroelectric liquid crystal-based switchable half-wave plate with improved alignment control, a ferroelectric liquid crystal-based light valve system with improved contrast control, and a method of improving contrast in a ferroelectric liquid crystal-based light valve system. The switchable half-wave plate with improved alignment control includes a layer of ferroelectric liquid crystal material sandwiched between a first transparent electrode and a second transparent electrode. The switchable half-wave plate also includes an electric field direction switching circuit configured to switch the electric field across the liquid crystal material between the forward direction and the reverse direction in response to a control signal. The switchable half-wave plate additionally includes an electric field magnitude control circuit to adjust the tilt angle in response to a signal received at a alignment control signal input. The ferroelectric liquid crystal-based light valve system according to the invention includes at least one ferroelectric liquid crystal-based spatial light modulator, an analyzer having a direction of minimum transmissivity, a ferroelectric liquid crystal-based switchable half-wave plate, and an adjustable voltage source. The voltage source is configured to adjust the magnitude of the electric field in at least one of the forward direction and reverse direction as the output voltage level is adjusted in response to a user interface or a light intensity sensor and a feedback circuit. The method of improving contrast in a ferroelectric light valve system according to the invention includes providing a ferroelectric liquid crystal-based spatial light modulator, an analyzer, a ferroelectric liquid crystal based switchable half-wave plate, and a video signal. In response to the video signal, a pixel electric field across each of the plurality of pixels is switched. Also an electric field across the switchable half-wave plate is periodically switched and the magnitude of the half-wave plate electric field is adjusted to align one of the first and the second half-wave plate director angles with one of the first and the second modulator director angles.