公开(公告)号：US5044754A

公开(公告)日：1991-09-03

申请号：US453530

申请日：1989-12-20

Applicant: James M. Cicchiello ,  Tomi Lahcanski

Inventor： James M. Cicchiello ,  Tomi Lahcanski

IPC: G01M11/00 ,  G01J1/30 ,  G01N21/59

CPC classification number: G01N21/59 ,  G01J1/30 ,  G01N2201/065

Abstract: Apparatus and method are described for determining the transmission factor or the density of a translucent element, such as an optical filter, using the cosine-to-the-fourth law. The apparatus includes a source of light of constant color and intensity. A detector is mounted on a track for movement along rectilinear path with the plane of the operative face of the detector parallel to the path. A reading of the intensity of light from the source sensed by the detector is taken in one position with the element in the light path and in another position with the element absent. The positions being such that the two readings are equal. The angles .THETA. and .alpha. of incidence of light on the detector in the two positions are determined and computer means determine value of ##EQU1## to give the value of the transmission factor.

Abstract translation: 描述了使用余弦到第四定律来确定诸如光学滤波器的半透明元件的透射因子或密度的装置和方法。 该装置包括恒定颜色和强度的光源。 检测器安装在轨道上以沿着直线路径运动，检测器的操作面的平面与路径平行。 从检测器感测到的光源的光强度的读取在光路中的元件与元件不存在的另一位置处于一个位置。 这些位置使得两个读数相等。 确定两个位置的检测器上的光入射角度THETA和α，计算机装置确定的值以给出传输因子的值。

公开(公告)号：US3437822A

公开(公告)日：1969-04-08

申请号：US3437822D

申请日：1966-04-12

Applicant: VICKERS LTD

Inventor： FITZSIMMONS ALAN EDWARD

IPC: G01J1/16 ,  G01J1/30 ,  G01N21/25 ,  G01N21/27 ,  G01N21/26

CPC classification number: G01N21/255 ,  G01J1/16 ,  G01J1/30 ,  G01N21/276

公开(公告)号：US20160058278A1

公开(公告)日：2016-03-03

申请号：US14468696

申请日：2014-08-26

Applicant: Novartis AG

Inventor： Ronald T. Smith ,  Ben Tse ,  Vit Ulinskas

IPC: A61B3/00

CPC classification number: A61B3/0008 ,  G01J1/0425 ,  G01J1/30 ,  G01J1/4257 ,  G02B27/00

Abstract: An ophthalmic endo-illumination system includes a light source that produces a light beam, a fiber port that receives an optical fiber, a condenser that couples at least a portion of the light beam into the optical fiber received at the fiber port, and a beam splitter disposed between the fiber port and the condenser. The beam splitter is configured to receive the light beam from the condenser and split the light beam into a first beam which is coupled to the optical fiber and a second beam which is coupled to a monitoring fiber. An optical sensor is provided to detect an amount of the second beam output from the monitoring fiber. The coupling efficiency of the first beam coupled into the optical fiber may be determined based on the amount of the second beam output from the monitoring fiber.

Abstract translation: 眼科内照射系统包括产生光束的光源，接收光纤的光纤端口，将光束的至少一部分耦合到光纤端口处接收的光纤中的聚光器，以及光束 分配器设置在光纤端口和冷凝器之间。 分束器被配置为接收来自冷凝器的光束并将光束分裂成耦合到光纤的第一光束和耦合到监视光纤的第二光束。 提供光学传感器以检测从监视光纤输出的第二光束的量。 可以基于从监视光纤输出的第二光束的量来确定耦合到光纤中的第一光束的耦合效率。

公开(公告)号：US20080111079A1

公开(公告)日：2008-05-15

申请号：US11870341

申请日：2007-10-10

Applicant: Juergen Stein ,  Guntram Pausch ,  Karen Saucke

Inventor： Juergen Stein ,  Guntram Pausch ,  Karen Saucke

IPC: G01J1/20

CPC classification number: H05B33/0818 ,  G01J1/02 ,  G01J1/0295 ,  G01J1/08 ,  G01J1/30 ,  G01T1/40 ,  H05B33/0854 ,  Y02B20/346

Abstract: Method for correction of the temperature dependency of a light quantity L emitted by a light emitting diode (LED), being operated in pulsed mode with substantially constant pulse duration tP, and measured in a light detector, using a predetermined parameter X, correlated to the temperature T of the LED in a predetermined ratio, whereby a correction factor K is determined from the parameter X, preferably using a calibration table, especially preferred using an analytic predetermined function, whereby the measured emitted light quantity L is corrected for the temperature contingent fluctuations of the emitted light quantity, whereby the parameter X is determined from at least two output signals of the LED, which are related to each other in a predetermined manner.

Abstract translation: 用于校正由发光二极管（LED）发射的光量L的温度依赖性的方法，其以脉冲模式以基本上恒定的脉冲持续时间t P P运行，并且在光检测器中测量，使用 预定参数X，以预定比例与LED的温度T相关，由此，优选使用校准表，从参数X确定校正因子K，特别优选使用分析预定功能，由此测量的发射光量 根据发射光量的温度偶然波动来校正L，由此根据预定方式彼此相关的LED的至少两个输出信号来确定参数X.

公开(公告)号：US20070295912A1

公开(公告)日：2007-12-27

申请号：US11569102

申请日：2004-05-14

Applicant: Stein Jurgen ,  Guntram Pausch ,  Karen Saucke ,  Guntram Pausch ,  Karen Saucke

Inventor： Stein Jurgen ,  Guntram Pausch ,  Karen Saucke ,  Guntram Pausch ,  Karen Saucke

IPC: H05B37/02 ,  G01T1/20

CPC classification number: H05B33/0818 ,  G01J1/02 ,  G01J1/0295 ,  G01J1/08 ,  G01J1/30 ,  G01T1/40 ,  H05B33/0854 ,  Y02B20/346

Abstract: Method for correction of the temperature dependency of a light quantity L emitted by a light emitting diode (LED), being operated in pulsed mode with substantially constant pulse duration tP, and measured in a light detector, using a predetermined parameter X, correlated to the temperature T of the LED in a predetermined ratio, whereby a correction factor K is determined from the parameter X, preferably using a calibration table, especially preferred using an analytic predetermined function, whereby the measured emitted light quantity L is corrected for the temperature contingent fluctuations of the emitted light quantity, whereby the parameter X is determined from at least two output signals of the LED, which are related to each other in a predetermined manner.

Abstract translation: 用于校正由发光二极管（LED）发射的光量L的温度依赖性的方法，其以脉冲模式以基本上恒定的脉冲持续时间t P P运行，并且在光检测器中测量，使用 预定参数X，以预定比例与LED的温度T相关，由此，优选使用校准表，从参数X确定校正因子K，特别优选使用分析预定功能，由此测量的发射光量 根据发射光量的温度偶然波动来校正L，由此根据预定方式彼此相关的LED的至少两个输出信号来确定参数X.

公开(公告)号：US5066132A

公开(公告)日：1991-11-19

申请号：US564167

申请日：1990-08-08

Applicant: Tsuyoshi Nagata ,  Shinji Okuda

Inventor： Tsuyoshi Nagata ,  Shinji Okuda

IPC: G01J1/16 ,  G01J1/18 ,  G01J1/30 ,  G01J1/44 ,  G01N21/84 ,  G01N21/86 ,  G01N21/958

CPC classification number: G01J1/16 ,  G01N21/8422 ,  G01N21/86 ,  G01N21/958 ,  G01J1/18 ,  G01J1/30 ,  G01J2001/4406 ,  G01N2021/8427 ,  G01N2201/0696 ,  G01N2201/124 ,  G01N2201/12723

Abstract: An apparatus for inspecting a coating formed on a workpiece, comprising a light emitter and a light receiver positioned on respective sides of the workpiece; an amplifier for amplifying a detection signal from the light receiver and for generating an amplified output signal; a comparator for comparing the amplified output signal with a predetermined level thereby to generate a control signal indicative of a difference between the amplified output signal and the predetermined level; a zero adjustment for adjusting the amplified output signal to a zero value; and a tuning circuit for tuning the amplified output signal, which is generated from the amplifier when the workpiece to be inspected has not yet been formed with the coating, to a predetermined tuned value. The tuning circuit is operable to vary the amplification factor of the amplifier and also to the intensity of light emitted by the light emitter. In place of the tuning circuit, an amplification factor setting citcuit may be used for sampling the light transmissivity of the workpiece and for selecting one of amplification factors according to the result of sampling. After the formation of the coating on the workpiece, the amplified output signal may decrease with a decrease of the light transmissivity of the workpiece, and the coating condition is determined depending on whether or not the amplified output signal is lower than the predetermined level.

Abstract translation: 一种用于检查在工件上形成的涂层的装置，包括位于工件的相应侧面上的光发射器和光接收器; 放大器，用于放大来自光接收器的检测信号并产生放大的输出信号; 比较器，用于将放大的输出信号与预定电平进行比较，从而产生指示放大的输出信号与预定电平之间的差的控制信号; 用于将放大的输出信号调整为零值的零调整; 以及调谐电路，用于当待检查的工件尚未形成涂层时，将放大器产生的放大的输出信号调谐到预定的调谐值。 调谐电路可操作以改变放大器的放大系数以及光发射器发射的光的强度。 代替调谐电路，可以使用放大因子设置电路来对工件的光透射率进行采样，并根据采样结果选择一个放大因子。 在工件上形成涂层之后，放大的输出信号可能随着工件的光透射率的降低而减小，并且根据放大的输出信号是否低于预定电平来确定涂覆条件。

公开(公告)号：US4467204A

公开(公告)日：1984-08-21

申请号：US352321

申请日：1982-02-25

Applicant: James O. Kysilka ,  Charles A. Sawicki

Inventor： James O. Kysilka ,  Charles A. Sawicki

IPC: G01N21/21 ,  G01J1/30 ,  G01J4/04 ,  G01N21/35 ,  H03F3/187

CPC classification number: H03F3/187 ,  G01J4/04 ,  G01N21/3577 ,  G01J1/30 ,  G01N21/21 ,  G01N21/35

Abstract: A polarimeter system and method for sensing optical rotation caused by otically active materials in a solution are disclosed. The polarimeter system (10) includes a light source (11) for emitting infrared light, a polarizer (14) operatively connected to intercept the infrared light to produce a polarized beam therefrom and means for directing the beam through a sample of optically active material (15), which rotates the light beam. A beam splitting prism (16) splits the rotated polarized beam into its horizontal and vertical components. Infrared light detectors (17a) and (17b) convert the horizontal and vertical components into electrical signals representative of the optical rotation caused by the sample solution. Shaping circuitry (26) conditions the electrical signals for use by analog or digital (28) networks, that present the optical rotation or its physical correlative factor. Feedback circuitry (36) may be used to vary the light source (11) intensity in response to the detected light signals.

Abstract translation: 公开了一种用于感测由溶液中的起始活性物质引起的旋光的旋光仪系统和方法。 偏振计系统（10）包括用于发射红外光的光源（11），可操作地连接以拦截红外光以产生偏振光束的偏振器（14），以及用于引导光束通过光学活性材料样品 15），其旋转光束。 分束棱镜（16）将旋转的偏振光束分成其水平和垂直分量。 红外光检测器（17a）和（17b）将水平和垂直分量转换成代表由样品溶液引起的旋转旋转的电信号。 整形电路（26）调节电信号供模拟或数字（28）网络使用，呈现光学旋转或其物理相关系数。 可以使用反馈电路（36）来响应于检测到的光信号来改变光源（11）的强度。

公开(公告)号：US4449821A

公开(公告)日：1984-05-22

申请号：US398385

申请日：1982-07-14

Applicant: Jerald D. Lee

Inventor： Jerald D. Lee

IPC: G01J1/30 ,  G01J3/10 ,  G01J3/50 ,  G01J3/42

CPC classification number: G01J3/10 ,  G01J1/30 ,  G01J3/50 ,  G01J3/502 ,  G01J3/524

Abstract: A colorimeter for measuring color of an object, in particular for measuring the color of liquids such as paints in a process stream. In the colorimeter, a single analytical light beam, with its blue and red intensity ratio controlled through a feedback loop, is directed to a sample whose color is being measured. A portion of the analytical light beam is reflected from the sample into a grating monochromator which disperses the light beam into its spectra. A detector array is attached to the monochromator which converts the spectra of the light beam into discrete signals which are then multiplexed with instrument status and reference color signals into an A/D converter. The output of the A/D converter is then fed directly to a computer programmed to directly provide standard color values.

Abstract translation: 用于测量物体的颜色的比色计，特别是用于测量液体的颜色，例如工艺流中的油漆。 在色度计中，通过反馈回路控制其蓝色和红色强度比的单个分析光束被引导到正在测量其颜色的样品。 分析光束的一部分从样品反射成将光束分散到其光谱中的光栅单色仪。 检测器阵列连接到单色器，其将光束的光谱转换成离散信号，然后将其与仪器状态和参考颜色信号复用成A / D转换器。 然后将A / D转换器的输出直接馈送到被编程为直接提供标准颜色值的计算机。

公开(公告)号：US3639768A

公开(公告)日：1972-02-01

申请号：US3639768D

申请日：1968-10-09

Applicant: CORNING GLASS WORKS

Inventor： MANCINI RONALD A

IPC: G01J1/30 ,  G08B13/183 ,  H03F3/08 ,  G01J1/32 ,  G01J1/36 ,  H05B37/02

CPC classification number: G01J1/4204 ,  G01J1/30 ,  G08B13/183 ,  H03F3/08

Abstract: A system for detecting the presence of an object passing between a photosensitive resistance and a light source. A DC feedback amplifier connected to the photosensitive resistance controls the intensity of the light source so that the system functions properly under wide variations in ambient conditions without requiring operator adjustments.

Abstract translation: 一种用于检测通过光敏电阻和光源之间的物体的存在的系统。 连接到光敏电阻的DC反馈放大器控制光源的强度，使得系统在环境条件的宽变化下正常工作，而不需要操作者调整。

公开(公告)号：US3565529A

公开(公告)日：1971-02-23

申请号：US3565529D

申请日：1967-09-26

Applicant: GUYTON ARTHUR C

Inventor： GUYTON ARTHUR CLIFTON

IPC: G01J1/30 ,  G01N21/85 ,  G01N33/16 ,  G01J3/46

CPC classification number: G01N21/85 ,  G01J1/30

Abstract: THE INVENTION COMPRISES A DEVICE FOR DETERMINING THE DIFFERENCE BETWEEN THE OXYGEN CONTENT OF ARTERIAL BLOOD AND VENOUS BLOOD. A PHOTOCELL ALTERNATELY MEASURES LIGHT TRANSMITTED IN A BEAM FROM A FIRST LIGHT SOURCE THROUGH A VENOUS BLOOD SAMPLE AND LIGHT TRANSMITTED IN A BEAM FROM A SECOND LIGHT SOURCE THROUGH AN ARTERIAL BLOOD SAMPLE. THE INTENSITIES OF THE TRANSMITTED LIGHT BEAMS ARE ADJUSTED TO ACHIEVE BALANCE AT THE PHOTOCELL, AND THE AMOUNT OF ADJUSTMENT IS INDICATIVE OF THE OXYGEN DIFFERENCE.