INTEGRATING SPHERE COVER AND INTEGRATING SPHERE MODULE

    公开(公告)号:US20170191867A1

    公开(公告)日:2017-07-06

    申请号:US15334296

    申请日:2016-10-26

    CPC classification number: G01J1/0252 G01J1/04 G01J2001/0481

    Abstract: An integrating sphere cover covering an integrating sphere having a light receiving entrance is provided and includes a first casing and a fixing assembly. The first casing partially covers the integrating sphere and includes a first opening where the light receiving entrance passes. A curvature radius of the first casing is greater than that of the integrating sphere. The fixing assembly is disposed at the first casing, and the first casing is fixed to the integrating sphere through the fixing assembly. The first casing or the fixing assembly includes a nozzle. When the first casing covers the integrating sphere, a first interval communicating with the first opening and the nozzle is between the first casing and the integrating sphere to form a first hollow intermediate layer. An air flow passes through the first hollow intermediate layer via the nozzle and the first opening. An integrating sphere module is also provided.

    FIBER COUPLED INTEGRATING SPHERE BASED-LASER ENERGY METER AND CALIBRATION SYSTEM (FCIS based - LEMCS) TRACEABLE TO PRIMARY LEVEL STANDARDS

    公开(公告)号:US20160334285A1

    公开(公告)日:2016-11-17

    申请号:US15113839

    申请日:2014-01-24

    Abstract: The averaged pulse energy (J) of a Pulsed Type Laser Source can be measured by several types of commercial laser energy meters, such as pyroelectric detector or thermopile sensor, the spectral responsivity and the time/frequency related response properties of which are compatible with those of the Pulsed Type Laser Source. These Commercial Laser Energy Meters, regardless of sensor/detector type, should be calibrated against the working standards calibrated in a national (or an international) traceability chain relying on primary standards on the highest level having the lowest uncertainty in realizations of the fundamental SI units. FCIS based-LEMCS designed in this invention accomplishes both of the above proficiencies of measuring the averaged pulse energy of the Pulsed Type Laser Source and calibrating the Commercial Laser Energy Meters, which are traceably to primary level standards. FCIS based-LEMCS contains an integrating sphere having a novel port and an interior design and a series of mechanical choppers having separate Duty Cycles, each of which is rotated by an electrical motor in FCIS based-LEMCS, used for generating a chopped type laser, called as Chopped Type Laser Source, in order to provide the reference and averaged pulse energy for traceable calibration of Commercial Laser Energy Meters. With this invention, in addition to generating the reference and averaged pulse energy to be used during the calibration of Commercial Laser Energy Meters to be performed by means of FCIS based-LEMCS, the peak pulse energies of the Pulsed Type Laser Source and the Chopped Type Laser Source, which is a strict part of FCIS based-LEMS and which is used for producing the reference averaged pulse energy in the calibration of Commercial Laser Energy Meters, are also measured by FCIS based-LEMCS, traceable to Electrical Substitution Cryogenic Radiometer (ESCR) in primary optical watt scale (W), to 133Cs (or 87Rb) Atomic Frequency Standard in time scale t (s), and to direct current unit (A) realized with Quantum Hall—primary resistance standard (ohm) and DC Josephson primary voltage standard (V). With this configuration presented as a preferred embodiment, the averaged pulse energy measurements are performed and achieved for a range extending from 16.5 p J to 100 mJ.

    Onboard calibration source for spectral calibraton of a radiometer
    76.
    发明授权
    Onboard calibration source for spectral calibraton of a radiometer 有权
    用于辐射计光谱校准的车载校准源

    公开(公告)号:US09212968B1

    公开(公告)日:2015-12-15

    申请号:US14012202

    申请日:2013-08-28

    Applicant: EXELIS, INC.

    CPC classification number: G01J1/08 G01J2001/0481

    Abstract: A calibration device for a radiometer includes an integrating cavity and a honeycomb blackbody mounted to the integrating cavity. A plurality of emitters are mounted to the exterior rim of the integrating cavity for transmitting narrow band wavelengths of light into and out of the integrating cavity. A controller, selectively, activates one or more emitters to radiate a single narrow band wavelength of light during an ON period and turn OFF during another period. A plurality of reference detectors are also mounted to the exterior rim of the integrating cavity for measuring the intensity of each narrow band radiation outputted from the integrating cavity. The reference detectors are effective in determining changes in intensity output by each of the narrow band emitters from the integrating cavity. The measured changes in intensity outputted by the emitters are used to calibrate the radiometer with the changes traced back to a NIST standard.

    Abstract translation: 用于辐射计的校准装置包括集成腔和安装到积分腔的蜂巢黑体。 多个发射器被安装到积分腔的外缘,用于将窄带波长的光发射到和流出积分腔。 选择性地,控制器激活一个或多个发射器以在接通时段期间辐射单个窄带波长的光,并在另一周期期间关断。 多个参考检测器也被安装到积分腔的外缘,用于测量从积分腔输出的每个窄带辐射的强度。 参考检测器有效地确定来自积分腔的每个窄带发射器的强度输出的变化。 由发射器输出的强度测量的变化用于校准辐射计,其变化追溯到NIST标准。

    LED TESTING PROCESS AND CORRECTION METHODS THEREFOR
    77.
    发明申请
    LED TESTING PROCESS AND CORRECTION METHODS THEREFOR 有权
    LED测试过程及其校正方法

    公开(公告)号:US20150198480A1

    公开(公告)日:2015-07-16

    申请号:US14587332

    申请日:2014-12-31

    Abstract: Disclosed is a method of generating a correction function for a light-emitting diode (LED) testing process. The method comprises the steps of: detecting light emitted by a reference LED and reflected from one or more inactive LEDs on a panel within a field of view of a detector, a number of said inactive LEDs within the field of view being varied such that uncorrected values of at least one optical parameter are derivable as a function of the number of inactive LEDs in the field of view; detecting light emitted by the reference LED, or by an active LED having identical optical properties to the reference LED, in the absence of any other LEDs, to determine at least one reference value for the or each said optical parameter; and calculating differences between the uncorrected values and the or each reference value to generate the correction function, the correction function being based on the number of inactive LEDs which are arranged within the field of view of the detector when the detector detects light emitted by an LED under test.

    Abstract translation: 公开了一种产生用于发光二极管(LED)测试过程的校正功能的方法。 该方法包括以下步骤:检测由参考LED发射并由检测器的视野内的面板上的一个或多个不活动的LED反射的光,视场内的所述非活动LED的数量是变化的,使得未校正 至少一个光学参数的值可以作为视野中的非活动LED的数量的函数导出; 在没有任何其他LED的情况下,检测由参考LED发射的光,或者通过与参考LED具有相同光学特性的有源LED,以确定所述光学参数或每个所述光学参数的至少一个参考值; 以及计算所述未校正值和所述或每个参考值之间的差异以产生所述校正功能,所述校正功能基于当所述检测器检测到由所述LED发射的光时,所述校正功能基于被布置在所述检测器的视场内的非活动LED的数量 被测试。

    Optical source assembly suitable for use as a solar simulator and associated methods
    78.
    发明授权
    Optical source assembly suitable for use as a solar simulator and associated methods 有权
    适合用作太阳模拟器和相关方法的光源组件

    公开(公告)号:US09063006B2

    公开(公告)日:2015-06-23

    申请号:US12837113

    申请日:2010-07-15

    Abstract: An apparatus may have a light source configured to generate light, a reflector configured to collect the light and direct the light in a desired direction, a spectral filter assembly configured to receive the light from the reflector. The spectral filter assembly may have a stationary frame and a plurality of filter elements supported by the stationary frame. Filter elements of the plurality of filter elements may simultaneously filter a desired quantity of light within wavelength band to provide a filtered output light beam. A homogenizer may be configured to receive the filtered output light beam and produce a homogenized light beam having a substantially uniform irradiance distribution across a cross-section of the homogenized light beam.

    Abstract translation: 设备可以具有被配置为产生光的光源,被配置为收集光并将光引导到期望方向的反射器;被配置为接收来自反射器的光的光谱滤光器组件。 光谱滤光器组件可以具有固定框架和由固定框架支撑的多个滤光元件。 多个滤波器元件的滤波器元件可以同时过滤波长带内的期望量的光以提供经滤波的输出光束。 均化器可以被配置为接收经滤波的输出光束并且产生在均匀化光束的横截面上具有基本均匀的辐照度分布的均质化光束。

    Light Collection Optics for Measuring Flux and Spectrum from Light-Emitting Devices
    79.
    发明申请
    Light Collection Optics for Measuring Flux and Spectrum from Light-Emitting Devices 有权
    用于测量发光器件的通量和光谱的光收集光学

    公开(公告)号:US20150124253A1

    公开(公告)日:2015-05-07

    申请号:US14527034

    申请日:2014-10-29

    Abstract: Systems and methods for accurately measuring the luminous flux and color (spectra) from light-emitting devices are disclosed. An integrating sphere may be utilized to directly receive a first portion of light emitted by a light-emitting device through an opening defined on the integrating sphere. A light collector may be utilized to collect a second portion of light emitted by the light-emitting device and direct the second portion of light into the integrating sphere through the opening defined on the integrating sphere. A spectrometer may be utilized to measure at least one property of the first portion and the second portion of light received by the integrating sphere.

    Abstract translation: 公开了用于准确测量发光器件的光通量和颜色(光谱)的系统和方法。 可以使用积分球直接接收由发光装置通过限定在积分球上的开口发射的光的第一部分。 可以利用光收集器来收集由发光装置发射的光的第二部分,并将第二部分的光通过限定在积分球上的开口引导到积分球。 可以使用光谱仪来测量由积分球接收的第一部分和第二部分光的至少一个性质。

    Systems and methods for measuring high-intensity light beams
    80.
    发明授权
    Systems and methods for measuring high-intensity light beams 有权
    用于测量高强度光束的系统和方法

    公开(公告)号:US08988674B2

    公开(公告)日:2015-03-24

    申请号:US13953423

    申请日:2013-07-29

    Abstract: Systems and methods for measuring an intensity characteristic of a light beam are disclosed. The methods include directing the light beam into a prism assembly that includes a thin prism sandwiched by two transparent plates, and reflecting a portion of the light beam by total-internal-reflection surface to an integrating sphere while transmitting the remaining portion of the light beam through the two transparent plates to a beam dump. The method also includes detecting light captured by the integrating sphere and determining the intensity characteristic from the detected light.

    Abstract translation: 公开了用于测量光束的强度特性的系统和方法。 所述方法包括将光束引导到棱镜组件中,该棱镜组件包括夹在两个透明板之间的薄棱镜,并且将一部分光束由全内反射表面反射到积分球,同时透射光束的剩余部分 通过两个透明板到一个光束转储。 该方法还包括检测由积分球捕获的光并根据检测到的光确定强度特性。

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