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1.发明授权System and method for estimating the junction temperature of a light emitting diode 有权用于估计发光二极管的结温的系统和方法公开(公告)号：US08534914B2
公开(公告)日：2013-09-17
申请号：US12863744
申请日：2009-01-27
CPC分类号： H05B33/0818 , G01K7/01 , H05B33/0866 , H05B33/089
摘要： A method of estimating the junction temperature of a light emitting diode comprises driving a forward bias current through the diode, the current comprising a square wave which toggles between high and low current values (Ihigh, llow), the high current value (lhigh) comprising an LED operation current, and the low current value (ILOW) comprising a non-zero measurement current. The forward bias voltage drop (Vf) is sampled and the forward bias voltage drop (Vflow) is determined at the measurement current (ILOW)—The temperature is derived from the determined forward bias voltage drop.
摘要翻译： 估计发光二极管的结温的方法包括驱动通过二极管的正向偏置电流，该电流包括在高电流值和低电流值（Ihigh，llow）之间切换的方波，高电流值（lhigh）包括 LED操作电流和包括非零测量电流的低电流值（ILOW）。 正向偏置电压降（Vf）被采样，并且在测量电流（ILOW）下确定正向偏置电压降（Vflow） - 温度是从确定的正向偏压电压降导出的。
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公开(公告)号：US08217558B2
公开(公告)日：2012-07-10
申请号：US12910583
申请日：2010-10-22
CPC分类号： H01L33/642 , F21V29/70 , F21Y2115/10 , H01L33/483 , H01L33/486 , H01L2924/0002 , H01L2924/00
摘要： Apparatus for regulating the temperature of a light emitting diode (LED). The apparatus includes a heat sink, an LED mount, and an LED mounted on the LED mount. The LED mount is configured to change shape in response to a change in temperature. The change in shape alters the position of the LED relative to the heat sink, for adjusting heat transfer between the LED and the heat sink. The LED mount may include a laminated portion such as a bi-metallic strip.
摘要翻译： 用于调节发光二极管（LED）的温度的装置。 该装置包括散热器，LED安装座和安装在LED安装座上的LED。 LED安装座被配置为响应于温度变化而改变形状。 形状的变化会改变LED相对于散热片的位置，以调节LED和散热片之间的热传递。 LED支架可以包括诸如双金属条的层压部分。
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公开(公告)号：US09386655B2
公开(公告)日：2016-07-05
申请号：US12994650
申请日：2009-05-21
CPC分类号： H05B33/0869 , G01J1/02 , G01J1/0209 , G01J1/04 , G01J1/0407 , G01J1/0425 , G01J1/32 , G01J2001/4247 , H05B33/0821
摘要： A light sensor device comprises a substrate (10) having a well (12) defined in one surface. At least one light sensor (14) is formed at the base of the well (12), and an optical light guide (18) in the form of a transparent tunnel (18) within an opaque body (20) extends from a top surface of the device down a sloped side wall of the well (12) to the location of the light sensor (14).
摘要翻译： 光传感器装置包括具有在一个表面中限定的阱（12）的衬底（10）。 至少一个光传感器（14）形成在井（12）的基部处，并且在不透明体（20）内的透明隧道（18）形式的光导（18）从顶表面 （12）的倾斜的侧壁上的装置到光传感器（14）的位置。
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4.发明授权Lighting unit with compensation for output frequency, and method for determining output frequency 有权输出频率补偿的照明单元，输出频率的确定方法公开(公告)号：US08896317B2
公开(公告)日：2014-11-25
申请号：US12867218
申请日：2009-02-09
CPC分类号： H05B33/0866
摘要： A method of determining the dominant output wavelength of an LED, includes determining an electrical characteristic of the LED which is dependent on the voltage-capacitance characteristics, and analyzing the characteristic to determine the dominant output wavelength.
摘要翻译： 确定LED的主要输出波长的方法包括确定取决于电压 - 电容特性的LED的电特性，以及分析该特性以确定主要输出波长。
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公开(公告)号：US20120105311A1
公开(公告)日：2012-05-03
申请号：US13056116
申请日：2009-07-27
IPC分类号： G09G3/00
CPC分类号： G02F1/19 , G02F1/0147 , G02F1/23 , G02F2203/10 , G09G2300/00
摘要： A display device comprises a substrate which carries an array of pixels. Each pixel comprises an array of apertures in the substrate, each aperture of the array having a maximum opening dimension less than the wavelength of the light to be transmitted through the aperture. The effective dielectric constant of the aperture and/or the dielectric constant of the substrate is varied, thereby to vary the light transmission characteristics of the pixel between transmission of at least one frequency in the visible spectrum and transmission of substantially no frequency in the visible spectrum.
摘要翻译： 显示装置包括承载像素阵列的基板。 每个像素包括衬底中的孔阵列，阵列的每个孔具有小于要透过孔的光的波长的最大开口尺寸。 孔的有效介电常数和/或介质的介电常数发生变化，从而改变可见光谱中的至少一个频率的透射之间像素的透光特性以及可见光谱中基本上没有频率的透射 。
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6.发明申请LIGHTING UNIT WITH COMPENSATION FOR OUTPUT FREQUENCY, AND METHOD FOR DETERMINING OUTPUT FREQUENCY 有权具有输出频率补偿的照明单元，以及用于确定输出频率的方法公开(公告)号：US20100308833A1
公开(公告)日：2010-12-09
申请号：US12867218
申请日：2009-02-09
CPC分类号： H05B33/0866
摘要： A method of determining the dominant output wavelength of an LED, comprises determining an electrical characteristic of the LED which is dependent on the voltage-capacitance characteristics, and analysing the characteristic to determine the dominant output wavelength.
摘要翻译： 确定LED的主要输出波长的方法包括确定取决于电压 - 电容特性的LED的电特性，以及分析该特性以确定主要输出波长。
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公开(公告)号：US09081251B2
公开(公告)日：2015-07-14
申请号：US13056116
申请日：2009-07-27
CPC分类号： G02F1/19 , G02F1/0147 , G02F1/23 , G02F2203/10 , G09G2300/00
摘要： A display device comprises a substrate which carries an array of pixels. Each pixel comprises an array of apertures in the substrate, each aperture of the array having a maximum opening dimension less than the wavelength of the light to be transmitted through the aperture. The effective dielectric constant of the aperture and/or the dielectric constant of the substrate is varied, thereby to vary the light transmission characteristics of the pixel between transmission of at least one frequency in the visible spectrum and transmission of substantially no frequency in the visible spectrum.
摘要翻译： 显示装置包括承载像素阵列的基板。 每个像素包括衬底中的孔阵列，阵列的每个孔具有小于要透过孔的光的波长的最大开口尺寸。 孔的有效介电常数和/或介质的介电常数发生变化，从而改变可见光谱中的至少一个频率的透射之间像素的透光特性以及可见光谱中基本上没有频率的透射 。
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公开(公告)号：US08368877B2
公开(公告)日：2013-02-05
申请号：US13002017
申请日：2009-07-01
CPC分类号： C09K11/06 , G01N15/1459 , G01N21/45 , G01N2021/458
摘要： An apparatus comprising at least one measuring cell (10) is disclosed. The measuring cell comprises a first cavity (16 and a second cavity (18) perpendicular to the first cavity, the first cavity and the second cavity comprising an overlap at first respective ends and a reflective surface (20) at the opposite respective ends. A beam splitter (15) is located in the overlap and an electromagnetic radiation source (12) is arranged to project a beam of electromagnetic radiation onto the beam splitter (15) such that the beam is projected into each of the cavities. A phase detector (22) for detecting a phase difference between the respective electromagnetic radiation reflected by the first and second cavity (16; 18) is also provided. In addition, the apparatus has a fluid channel (26), at least a part of which runs parallel to the first cavity (16) such that the electromagnetic radiation projected into the first cavity extends into said part of the fluid channel. This allows for the interferometric detection of particles in the fluid channel.
摘要翻译： 公开了一种包括至少一个测量单元（10）的装置。 所述测量单元包括第一空腔（16和垂直于所述第一空腔的第二空腔），所述第一空腔和所述第二空腔包括在第一相应端部处的重叠部分和在相对的相应端部处的反射表面（20） 分束器（15）位于重叠中，并且电磁辐射源（12）被布置成将电磁辐射束投射到分束器（15）上，使得射束投射到每个空腔中。相位检测器 还提供了用于检测由第一和第二空腔（16; 18）反射的各个电磁辐射之间的相位差的装置（22），另外，该装置具有流体通道（26），其流体通道的至少一部分平行于 所述第一空腔（16）使得投射到所述第一空腔中的电磁辐射延伸到所述流体通道的所述部分中，这允许对所述流体通道中的颗粒进行干涉检测。
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公开(公告)号：US08348505B2
公开(公告)日：2013-01-08
申请号：US12971738
申请日：2010-12-17
IPC分类号： G01K7/00
CPC分类号： G01K7/01 , G01K15/00 , H05B33/089
摘要： The present invention relates to a calibration circuit, computer program product, and method of calibrating a junction temperature measurement of a semiconductor element, wherein respective forward voltages at junctions of the semiconductor element and a reference temperature sensor are measured, and an absolute ambient temperature is determined by using the reference temperature sensor, and the junction temperature of the semiconductor element is predicted based on the absolute ambient temperature and the measured forward voltages.
摘要翻译： 本发明涉及校准电路，计算机程序产品和校准半导体元件的结温测量的方法，其中测量半导体元件和基准温度传感器的接合处的各个正向电压，绝对环境温度为 通过使用参考温度传感器确定，并且基于绝对环境温度和所测量的正向电压来预测半导体元件的结温。
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公开(公告)号：US20110133214A1
公开(公告)日：2011-06-09
申请号：US12994650
申请日：2009-05-21
IPC分类号： H01L31/147 , H01L31/0232 , H01L31/18
CPC分类号： H05B33/0869 , G01J1/02 , G01J1/0209 , G01J1/04 , G01J1/0407 , G01J1/0425 , G01J1/32 , G01J2001/4247 , H05B33/0821
摘要： A light sensor device comprises a substrate (10) having a well (12) defined in one surface. At least one light sensor (14) is formed at the base of the well (12), and an optical light guide (18) in the form of a transparent tunnel (18) within an opaque body (20) extends from a top surface of the device down a sloped side wall of the well (12) to the location of the light sensor (14).
摘要翻译： 光传感器装置包括具有在一个表面中限定的阱（12）的衬底（10）。 至少一个光传感器（14）形成在井（12）的基部处，并且在不透明体（20）内的透明隧道（18）形式的光导（18）从顶表面 （12）的倾斜的侧壁上的装置到光传感器（14）的位置。
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