公开(公告)号：CN106664759A

公开(公告)日：2017-05-10

申请号：CN201580036326.2

申请日：2015-06-19

Applicant: 奥斯兰姆施尔凡尼亚公司

Inventor： M.李 ,  Q.戴 ,  K.陈

IPC: H05B33/08

CPC classification number: H05B33/0869 ,  G01J1/0228 ,  G01J1/0238 ,  G01J1/16 ,  G01J1/58 ,  G01J2001/1673

Abstract: 公开了用于随时间经过而维持照明组件的一致的流明输出的技术。通过维持一致的流明输出，可能的是在使用多个输出的色彩混合的情况下维持可接受的色彩稳定性。照明组件可以是可能随时间经过而遭受流明降落和/或色彩漂移的任何照明配置，并且可以包括可以被相应地监控并驱动的任何（多个）类型的（多个）光源。除了（多个）光源之外，照明组件包括光电检测器和诸如激光器的被引导光源。被引导光源提供用于在对光电检测器进行校准中使用的标准样本，光电检测器进而监控（多个）光源的流明输出。驱动信号被调整以计及所监控的（多个）光源的流明降落。

公开(公告)号：US09335210B2

公开(公告)日：2016-05-10

申请号：US14321148

申请日：2014-07-01

Applicant: Ming Li ,  Qi Dai ,  Keng Chen

Inventor： Ming Li ,  Qi Dai ,  Keng Chen

IPC: G01J1/16 ,  G01J1/02 ,  G01J1/58 ,  H05B33/08

CPC classification number: H05B33/0869 ,  G01J1/0228 ,  G01J1/0238 ,  G01J1/16 ,  G01J1/58 ,  G01J2001/1673

Abstract: Techniques are disclosed for maintaining consistent lumen output of a lighting assembly over time. By maintaining a consistent lumen output, it is possible to maintain acceptable color stability where color mixing of multiple outputs is used. The lighting assembly may be any lighting configuration that might suffer from lumen depreciation and/or color drift over time, and may include any type(s) of light source(s) that may be monitored and driven accordingly. The lighting assembly, in addition to light source(s), includes a photo detector and a directed light source, such as a laser. The directed light source provides a golden sample for use in calibrating the photo detector, which in turn monitors lumen output of the light source(s). Drive signals are adjusted to account for lumen depreciation of the monitored light source(s).

Abstract translation: 公开了用于在一段时间内维持照明组件的一致的流明输出的技术。 通过保持一致的流明输出，可以在使用多个输出的颜色混合的情况下保持可接受的颜色稳定性。 照明组件可以是可能遭受流逝衰减和/或随时间的颜色漂移的任何照明配置，并且可以包括可以相应地监视和驱动的任何类型的光源。 除了光源之外，照明组件还包括光检测器和诸如激光器的定向光源。 定向光源提供用于校准光电检测器的金色样品，其又监测光源的流明输出。 驱动信号被调整以考虑所监视的光源的流明衰减。

公开(公告)号：US20160227621A1

公开(公告)日：2016-08-04

申请号：US15093917

申请日：2016-04-08

Applicant: Ming Li ,  Qi Dai ,  Keng Chen

Inventor： Ming Li ,  Qi Dai ,  Keng Chen

IPC: H05B33/08 ,  G01J1/02 ,  G01J1/16

CPC classification number: H05B33/0869 ,  G01J1/0228 ,  G01J1/0238 ,  G01J1/16 ,  G01J1/58 ,  G01J2001/1673

Abstract: Techniques are disclosed for maintaining consistent lumen output of a lighting assembly over time. By maintaining a consistent lumen output, it is possible to maintain acceptable color stability where color mixing of multiple outputs is used. The lighting assembly may be any lighting configuration that might suffer from lumen depreciation and/or color drift over time, and may include any type(s) of light source(s) that may be monitored and driven accordingly. The lighting assembly, in addition to light source(s), includes a photo detector and a directed light source, such as a laser. The directed light source provides a golden sample for use in calibrating the photo detector, which in turn monitors lumen output of the light source(s). Drive signals are adjusted to account for lumen depreciation of the monitored light source(s).

Abstract translation: 公开了用于在一段时间内维持照明组件的一致的流明输出的技术。 通过保持一致的流明输出，可以在使用多个输出的颜色混合的情况下保持可接受的颜色稳定性。 照明组件可以是可能遭受流逝衰减和/或随时间的颜色漂移的任何照明配置，并且可以包括可以相应地监视和驱动的任何类型的光源。 除了光源之外，照明组件还包括光检测器和诸如激光器的定向光源。 定向光源提供用于校准光电检测器的金色样品，其又监测光源的流明输出。 驱动信号被调整以考虑所监视的光源的流明衰减。

公开(公告)号：US20150316411A1

公开(公告)日：2015-11-05

申请号：US14699880

申请日：2015-04-29

Applicant: KLA-TENCOR CORPORATION

Inventor： Mark McCord ,  Yu Guan ,  James George

IPC: G01J1/18 ,  G01J1/04 ,  G01J3/02 ,  H05B33/08

CPC classification number: G01J1/04 ,  G01J1/0252 ,  G01J1/0403 ,  G01J1/18 ,  G01J1/42 ,  G01J3/0251 ,  G01J3/0286 ,  G01J2001/1673 ,  G01J2001/4247 ,  H05B33/0815 ,  H05B33/089

Abstract: The present disclosure provides methods and apparatus for testing light-emitting diodes (LEDs), for example, measuring the optical radiation of an LED. In a method, a pulse-width modulated signal is provided to the LED. One or more characteristics of the PWM signal are varied so as to provide a forward voltage, Vf, corresponding to a target junction temperature, Tj, of the LED. The optical radiation of the LED is measured when the LED obtains the target junction temperature.

Abstract translation: 本公开提供了用于测试发光二极管（LED）的方法和装置，例如测量LED的光辐射。 在一种方法中，向LED提供脉冲宽度调制信号。 改变PWM信号的一个或多个特性以提供对应于LED的目标结温Tj的正向电压Vf。 当LED获得目标结温时，测量LED的光辐射。

公开(公告)号：EP0497434A3

公开(公告)日：1992-12-16

申请号：EP92201182.0

申请日：1989-02-14

Applicant: APPLIED BIOSYSTEMS, INC.

Inventor： Sapp, Edwin R. ,  Kinast, Eric K.

IPC: G01N21/27 ,  G01J1/16 ,  G01J3/42

CPC classification number: G01N21/27 ,  G01J3/2803 ,  G01J3/42 ,  G01J2001/161 ,  G01J2001/1673 ,  G01N30/74 ,  G01N2201/1232 ,  G01N2201/126

Abstract: The present invention relates to an improved dual beam multichannel spectrophotomer employing a simple and novel optical system in combination with photodiode arrays and a unique logrithmic data converter to convert light signals to absorbance. In particular, the optical system utilizes optical elements in a novel arrangement to direct a pair of equivalent sample and reference beams in an essentially parallel formation respectively through a sample and reference cell and to focus and direct the emergent sample and reference beams to a single flat horizonatally ruled grating which disperses each of the sample and reference beams respectively onto a pair of vertically disposed photodiode arrays whereby the light signals are converted into absorbance units (AU) by an unique logarithmic data converter. The spectrophotometer is highly accurate, has very low drift, less than 2 x 10⁻⁴ AU/°C, and very low noise, less than ±2 x 10⁻⁵AU. The dual beam multichannel spectrophotomer is particularly suitable for use in high pressure liquid chromatography to record the absorbance spectrum of the samples as they are being eluted from the chromatographic column.

公开(公告)号：EP0197917A2

公开(公告)日：1986-10-15

申请号：EP86890084.6

申请日：1986-04-01

Applicant: AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List

Inventor： Faschingleitner, Leopold ,  Krempl, Peter W., Dr. ,  Schindler, Wolfgang, Dr.

IPC: G01N21/27 ,  G01N15/00 ,  G01N15/06 ,  G01R17/02 ,  G01J1/16

CPC classification number: G01N21/314 ,  G01J1/16 ,  G01J2001/1673 ,  G01N15/06 ,  G01N2201/127 ,  G01R17/02

Abstract: 0 Um apparativ bedingte Schwankungen bei der periodischen Bestimmung einer Meßgröße durch Differenzbildung zwischen einem durch die zu messende Größe gegenüber einem Ursprungssignal veränderten Meßsignal und einem durch die zu messende Größe gegenüber dem Ursprungssignal unbeeinflußten Referenzsignal auszuschalten, wird für jede Bestimmung der Meßgröße ein Grundsignalpegel (I) als Differenz zwischen dem Referenzpegel - (X) und einem Nullpegel (Y) bei fehlendem Ursprungssignal bestimmt und dann sowohl jeder aktuelle Referenzsignalpegel (A) als auch jeder Meßsignalpegel (B) mit dem zuerst gemessenen Referenzsignalpegel (X) kompensiert. Durch Verstärkung der kompensierten Referenzsignale (A') und Meßsignale (B') vor der Differenzbildung und Normierung der aus diesen Signalen gebildeten Differenz (E) auf den Grundsignalpegel (I) kann eine hohe Genauigkeit auch bei nur geringen Abschwächungen des Meßsignals durch die zu messende Größe erreicht werden (Fig. 2).

Abstract translation: 为了在数量的周期性确定期间消除设备产生的波动可以通过形成具有被测量的变量的源信号改变相对的测量信号并且具有未受影响的参考信号之间的差的所有被影响的测量 相对于由测量参量源信号，基站信号电平是确定的开采每个测量周期作为基准电平，并在不存在源信号的零电平，之后，每个实际的参考信号电平，并且每个测量之间的差 信号电平与先前确定的开采基准信号电平进行补偿。 通过放大之前差形成经补偿的参考信号和规范的信号差，以基本信号电平，高精确度的可即使被测定由数量引起的测量信号的衰减可以取得非常小。

公开(公告)号：US11874164B2

公开(公告)日：2024-01-16

申请号：US17807458

申请日：2022-06-17

Applicant: Solar Light Company, LLC

Inventor： Michael H. Bonitatibus ,  Curtis Cole

IPC: G01J1/42 ,  A61K8/27 ,  A61K8/35 ,  A61K8/368 ,  A61K8/40 ,  A61K8/41 ,  A61Q17/04 ,  G01J1/02 ,  G01J1/04 ,  G01J1/08 ,  G01J1/18 ,  G01J1/16 ,  G01J1/44

CPC classification number: G01J1/429 ,  A61K8/27 ,  A61K8/35 ,  A61K8/368 ,  A61K8/40 ,  A61K8/411 ,  A61Q17/04 ,  G01J1/0233 ,  G01J1/0407 ,  G01J1/08 ,  G01J1/18 ,  G01J2001/1673 ,  G01J2001/4453

Abstract: A system, apparatus and method of improved measurement of the SPF factor of sunscreen compositions. In one embodiment, a method of measuring the protection of a sunscreen composition includes exposing skin to a known intensity of light, measuring the amount of remitted light from the skin, applying sunscreen to the skin, exposing the skin to which the sunscreen has been applied the known intensity of emitted light of the spectrum of light from which the sunscreen is intended to protect the skin, measuring the amount of light remitted from the skin, and calculating a UltraViolet-A Protection Factor (UVA-PF) of the sunscreen by comparing the amount of light remitted from the skin with the sunscreen to the amount of light remitted from the skin without the sunscreen.

公开(公告)号：US20160003670A1

公开(公告)日：2016-01-07

申请号：US14321148

申请日：2014-07-01

Applicant: Ming Li ,  Qi Dai ,  Keng Chen

Inventor： Ming Li ,  Qi Dai ,  Keng Chen

IPC: G01J1/16 ,  G01J1/02 ,  G01J1/58

CPC classification number: H05B33/0869 ,  G01J1/0228 ,  G01J1/0238 ,  G01J1/16 ,  G01J1/58 ,  G01J2001/1673

Abstract: Techniques are disclosed for maintaining consistent lumen output of a lighting assembly over time. By maintaining a consistent lumen output, it is possible to maintain acceptable color stability where color mixing of multiple outputs is used. The lighting assembly may be any lighting configuration that might suffer from lumen depreciation and/or color drift over time, and may include any type(s) of light source(s) that may be monitored and driven accordingly. The lighting assembly, in addition to light source(s), includes a photo detector and a directed light source, such as a laser. The directed light source provides a golden sample for use in calibrating the photo detector, which in turn monitors lumen output of the light source(s). Drive signals are adjusted to account for lumen depreciation of the monitored light source(s).

公开(公告)号：US4848904A

公开(公告)日：1989-07-18

申请号：US156285

申请日：1988-02-16

Applicant: Edwin R. Sapp ,  Eric K. Kinast

Inventor： Edwin R. Sapp ,  Eric K. Kinast

IPC: G01J3/18 ,  G01J1/16 ,  G01J1/42 ,  G01J1/44 ,  G01J3/28 ,  G01J3/42 ,  G01N21/27 ,  G01N21/77 ,  G01N30/74

CPC classification number: G01N21/27 ,  G01J3/42 ,  G01J2001/161 ,  G01J2001/1673 ,  G01J3/2803 ,  G01N2201/1232 ,  G01N2201/126 ,  G01N30/74

Abstract: The present invention relates to an improved dual beam multichannel spectrophotomer employing a simple and novel optical system in combination with photodiode arrays and a unique logrithmic data converter to convert light signals to absorbance. In particular, the optical system utilizes optical elements in a novel arrangement to direct a pair of equivalent sample and reference beams in an essentially parallel formation respectively through a sample and reference cell and to focus and direct the emergent sample and reference beams to a single flat horizontally ruled grating which disperses each of the sample and reference beams respectively onto a pair of vertically disposed photodiode arrays whereby the light signals are converted into absorbance units (AU) by an unique logarithmic data converter. The spectrophotometer is highly accurate, has very low drift, less than 2.times.10.sup.-4 AU/.degree.C., and very low noise, less than .+-.2.times.10.sup.-5 AU. The dual beam multichannel spectrophotomer is particularly suitable for use in high pressure liquid chromatography to record the absorbance spectrum of the samples as they are being eluted from the chromatographic column.

公开(公告)号：US09743483B2

公开(公告)日：2017-08-22

申请号：US15093917

申请日：2016-04-08

Applicant: OSRAM SYLVANIA Inc.

Inventor： Ming Li ,  Qi Dai ,  Keng Chen

IPC: G01J1/02 ,  G01J1/16 ,  H05B33/08 ,  G01J1/58

CPC classification number: H05B33/0869 ,  G01J1/0228 ,  G01J1/0238 ,  G01J1/16 ,  G01J1/58 ,  G01J2001/1673

Abstract: Techniques are disclosed for maintaining consistent lumen output of a lighting assembly over time. By maintaining a consistent lumen output, it is possible to maintain acceptable color stability where color mixing of multiple outputs is used. The lighting assembly may be any lighting configuration that might suffer from lumen depreciation and/or color drift over time, and may include any type(s) of light source(s) that may be monitored and driven accordingly. The lighting assembly, in addition to light source(s), includes a photo detector and a directed light source, such as a laser. The directed light source provides a golden sample for use in calibrating the photo detector, which in turn monitors lumen output of the light source(s). Drive signals are adjusted to account for lumen depreciation of the monitored light source(s).