Out-of-plane birefringence measurement
    21.
    发明授权
    Out-of-plane birefringence measurement 有权
    面外双折射测量

    公开(公告)号:US07312869B2

    公开(公告)日:2007-12-25

    申请号:US11155825

    申请日:2005-06-16

    Applicant: Baoliang Wang

    Inventor: Baoliang Wang

    CPC classification number: G01N21/23

    Abstract: The disclosure is directed to precise measurement of out-of-plane birefringence properties of samples of transparent optical material. Two angled-apart light beams are passed through a selected location of a sample optical element. One of the beams is incident to the sample surface. The characteristics of the beams are detected after passing through the sample, and the information detected is processed to determine the out-of-plane birefringence.

    Abstract translation: 本发明涉及透明光学材料样品的平面外双折射性质的精确测量。 两个角度分开的光束通过样品光学元件的选定位置。 梁中的一个入射到样品表面。 在通过样品之后检测光束的特性,并且处理检测到的信息以确定平面外双折射。

    High throughput birefringence measurement
    22.
    发明授权
    High throughput birefringence measurement 有权
    高通量双折射测量

    公开(公告)号:US08582101B2

    公开(公告)日:2013-11-12

    申请号:US13002650

    申请日:2009-07-02

    Applicant: Baoliang Wang

    Inventor: Baoliang Wang

    CPC classification number: G01N21/23 G02F1/0131

    Abstract: Improving the throughput of systems for measuring birefringence of optical samples includes techniques for directing multiple beams through the photoelastic modulator component of the system so that, along with expanded detection mechanisms to accommodate the multiple beams, the heretofore scanning (via a single beam) of a line across the sample is considerably enlarged so that several lines covering a “swath” of the sample area is scanned by the system of the present invention.

    Abstract translation: 提高用于测量光学样本的双折射的系统的通量包括用于将多个光束引导通过系统的光弹性调制器部件的技术,使得随着扩展的检测机构以适应多个光束,迄今为止扫描(经由单个光束) 跨越样品的线被相当大地放大,使得覆盖样品区域的“条”的几条线被本发明的系统扫描。

    Detection system for birefringence measurement
    23.
    发明授权
    Detection system for birefringence measurement 有权
    双折射测量检测系统

    公开(公告)号:US08520207B2

    公开(公告)日:2013-08-27

    申请号:US13588352

    申请日:2012-08-17

    Applicant: Baoliang Wang

    Inventor: Baoliang Wang

    CPC classification number: F21V5/04 G01N21/23

    Abstract: A system for controlling a light beam in an optical setup includes a light source that directs a collimated light beam along a path, through a sample, and toward the active area of a stationary detector. A lens is selectively movable into the path of the light beam for spreading the beam in instances where the path of the beam is altered by the sample between the source and the stationary detector. The detector, therefore, is held stationary. Adjustment mechanisms are provided for increasing the intensity characteristic of the light that reaches the detector to account for a decrease in intensity that occurs when the lens is in the path of the light beam to spread the beam.

    Abstract translation: 用于控制光学装置中的光束的系统包括光源,该光源将准直光束沿着路径,通过样本并朝向静止检测器的有效区域引导。 在光源的路径被源和静态检测器之间的样本改变的情况下,透镜可选择性地移动到光束的路径中,用于扩展光束。 因此,检测器保持静止。 提供调节机构用于增加到达检测器的光的强度特性,以解决当透镜在光束的路径中扩展光束时发生的强度的降低。

    Detection system for birefringence measurement
    24.
    发明授权
    Detection system for birefringence measurement 有权
    双折射测量检测系统

    公开(公告)号:US08248605B2

    公开(公告)日:2012-08-21

    申请号:US12442490

    申请日:2007-09-26

    Applicant: Baoliang Wang

    Inventor: Baoliang Wang

    CPC classification number: F21V5/04 G01N21/23

    Abstract: A method of controlling a light beam in an optical system includes a light source that directs a collimated light beam along a path, through a sample, and toward the active area of a stationary detector. The method includes the step selectively moving a lens into the path of the light beam for spreading the beam in instances where the path of the beam is altered by the sample between the source and the stationary detector The detector, therefore, is held stationary. Adjustment means are provided for increasing the intensity characteristic of the light that reaches the detector to account for a decrease in intensity that occurs when the lens is in the path of the light beam to spread the beam.

    Abstract translation: 一种控制光学系统中的光束的方法包括:光源,其沿着路径,通过样本并朝向固定检测器的有效区域引导准直光束。 该方法包括步骤:将透镜移动到光束的路径中,以在光束的路径被源和静态检测器之间的样本改变的情况下扩散光束。因此,检测器保持静止。 提供了调节装置,用于增加到达检测器的光的强度特性,以解决当透镜在光束的路径中扩散光束时发生的强度的降低。

    Measurement of Linear and Circular Diattentuation in Optical Elements
    25.
    发明申请
    Measurement of Linear and Circular Diattentuation in Optical Elements 审中-公开
    光学元件中线性和圆形缺陷的测量

    公开(公告)号:US20090323064A1

    公开(公告)日:2009-12-31

    申请号:US12298762

    申请日:2007-05-01

    Applicant: Baoliang Wang

    Inventor: Baoliang Wang

    CPC classification number: G01N21/19 G01M11/0285

    Abstract: A system for measuring linear or circular diattenuation in an optical element includes a sample rotation stage for securing an optical element sample; a light source module for generating a source light beam and a detector module. The light source module and detector module are arranged with the sample rotation stage between them, thereby permitting the source light beam to propagate through a sample that may be secured in the sample stage and to the detector module. Linear motion control of the light source module and the detector module, as well as tilt control of the light source module, the sample rotation stage and the detector module is provided, thereby to facilitate detection, by the detector module of the modulated light intensity information corresponding to a diattenuation characteristic of the optical sample secured in the sample stage.

    Abstract translation: 用于测量光学元件中的线性或圆形衰减的系统包括用于固定光学元件样品的样品旋转台; 用于产生源光束的光源模块和检测器模块。 光源模块和检测器模块布置有它们之间的样品旋转台,从而允许源光束传播通过可以固定在样品台中的样品和检测器模块。 提供光源模块和检测器模块的线性运动控制以及光源模块,样品旋转台和检测器模块的倾斜控制,从而便于检测器模块检测调制的光强度信息 对应于固定在样品台中的光学样品的变色特性。

    Outer case of LED module
    26.
    发明授权

    公开(公告)号:US07600896B2

    公开(公告)日:2009-10-13

    申请号:US11881462

    申请日:2007-07-27

    Applicant: Baoliang Wang

    Inventor: Baoliang Wang

    Abstract: An outer case of a LED module includes a top case and a bottom case to receive the LED module therebetween. The top case has a plurality of through holes and a plurality of blocks spacedly protruding from an inner side of the top case. The bottom case has a plurality of corresponding clip holes spacedly formed thereat, wherein the blocks are detachably engaged with the clip holes respectively to detachably couple the top case with the bottom case so as to form a cavity therebetween for receiving the LED module at a position that portions of LEDs are protruded through the through holes respectively. Two wire holes are formed at two sides of the top case when the top case is coupled with the bottom case for guiding wires of the LED module extending out of the cavity through the wire holes respectively.

    Stabilized high power LED module
    27.
    发明申请
    Stabilized high power LED module 审中-公开
    稳定的大功率LED模块

    公开(公告)号:US20090243511A1

    公开(公告)日:2009-10-01

    申请号:US12215566

    申请日:2008-06-27

    Applicant: Baoliang Wang

    Inventor: Baoliang Wang

    Abstract: A stabilized high power LED module includes a supporting frame and an illuminating unit. The supporting frame is made of thermal conductive material for radiating heat produced by the illuminating unit. The illuminating unit includes a light circuit supported by the radiating supporting frame, and a plurality of illuminators which are electrically mounted to the light circuit and spacedly aligned along the supporting frame, wherein the light circuit has a voltage regulation preset for the illuminators in series to stabilize a voltage supply of the light circuit for protecting the illuminators.

    Abstract translation: 稳定的大功率LED模块包括支撑框架和照明单元。 支撑框架由用于照射单元产生的热量的导热材料制成。 照明单元包括由辐射支撑框架支撑的光电路,以及多个照明器,其电连接到光电路并且沿着支撑框架间隔地对准,其中,光电路具有针对照明器的电压调节预设, 稳定用于保护照明器的光电路的电压源。

    Automatic gain control in photodetectors
    28.
    发明授权
    Automatic gain control in photodetectors 有权
    光电探测器自动增益控制

    公开(公告)号:US07495205B2

    公开(公告)日:2009-02-24

    申请号:US11752225

    申请日:2007-05-22

    CPC classification number: H03G3/3084

    Abstract: The amount of gain applied to a photodetector such as a photomultiplier tube (PMT) is limited to an amount that does not cause the applied PMT bias voltage to overdrive, hence damage, the PMT. Techniques for limiting the PMT gain are implemented in a way that does not interfere with the precision with which the PMT gain may be established (by selection of a reference level) below that limited level.

    Abstract translation: 施加到诸如光电倍增管(PMT)的光电检测器的增益的量被限制为不会使施加的PMT偏置电压过驱动的量,从而损坏PMT。 用于限制PMT增益的技术以不影响PMT增益的精度(通过选择参考电平)低于该限制级别的方式来实现。

    Birefringence measurement of polymeric films and the like
    29.
    发明授权
    Birefringence measurement of polymeric films and the like 有权
    聚合物薄膜等的双折射测量

    公开(公告)号:US07385696B2

    公开(公告)日:2008-06-10

    申请号:US11379373

    申请日:2006-04-19

    Applicant: Baoliang Wang

    Inventor: Baoliang Wang

    CPC classification number: G01N21/23

    Abstract: Provided are methods for determining the birefringence level of optical material such as polymeric film. In one embodiment, the method uses a setup of optical components that has known system reference angle. The sample may be a stretched polymeric film that has a fast axis angle that has a predetermined orientation in the sample. The system is operated to align the direction of the fast axis of the sample with the reference angle of the system and to measure the birefringence level at a location of the sample. As one aspect of the invention, embodiments and methods are described for accurately determining birefringence levels across a very wide range and up to tens of thousands of nanometers.

    Abstract translation: 提供了用于确定诸如聚合物膜的光学材料的双折射水平的方法。 在一个实施例中,该方法使用具有已知系统参考角度的光学部件的设置。 样品可以是具有在样品中具有预定取向的快轴角度的拉伸聚合物膜。 操作该系统以将样品的快轴的方向与系统的参考角度对准,并测量样品位置处的双折射水平。 作为本发明的一个方面,描述了在非常宽的范围和高达数万纳米处精确地确定双折射水平的实施例和方法。

    System for measuring of both circular and linear birefringence
    30.
    发明授权
    System for measuring of both circular and linear birefringence 失效
    用于测量圆形和线性双折射的系统

    公开(公告)号:US07002685B2

    公开(公告)日:2006-02-21

    申请号:US10240290

    申请日:2002-03-23

    Applicant: Baoliang Wang

    Inventor: Baoliang Wang

    CPC classification number: G01J4/00 G01N21/23

    Abstract: A system and method for precisely measuring low-level linear and circular birefringence properties (retardance and direction) of optical materials (26). The system incorporates a photoelastic modulator (24) for modulating polarized light that is then directed through a sample (26). The beam (“Bi”) propagating from the sample is separated into two parts, with one part (“B1”) having a polarization direction different than the polarization direction of the other beam part (“B2”). These separate beam parts are then processed as distinct channels. Detection mechanisms (32, 50) associated with each channel detect the time varying light intensity corresponding to each of the two parts of the beam. This information is combined for calculating a precise measure of the linear and/or circular retardance induced by the sample, as well as the sample's fast axis orientation and direction of circular retardance.

    Abstract translation: 一种用于精确测量光学材料(26)的低级线性和圆形双折射性质(延迟和方向)的系统和方法。 该系统包含用于调制偏振光的光弹性调制器(24),然后被引导通过样品(26)。 从样品传播的光束(“Bi”)被分成两部分,其中一部分(“B1”)的偏振方向与另一光束部分(“B2”)的偏振方向不同。 然后将这些单独的光束部分作为不同的通道进行处理。 与每个通道相关联的检测机构(32,50)检测对应于梁的两个部分中的每一个的时变光强度。 该信息被组合用于计算由样品引起的线性和/或圆形延迟的精确测量,以及样品的快轴取向和圆形延迟的方向。

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