公开(公告)号：US09494462B2

公开(公告)日：2016-11-15

申请号：US14622158

申请日：2015-02-13

Applicant: Robert C. Griffith

Inventor： Robert C. Griffith

IPC: H01J40/14 ,  G01J1/42 ,  G01J1/44

CPC classification number: G01J1/4228 ,  G01J1/0295 ,  G01J1/44

Abstract: A circuit includes a first photo detector and a second photo detector to receive a first and second light input signal, respectfully, to generate a first current output signal and second current output signal respectively in response to the respective light input signals. A current multiplier stage receives the second current output signal from the second photo detector to generate a multiplied current output signal that is greater than the magnitude of the second current output signal. A differential multiplier having a first current path receives a portion of the multiplied current output signal and a second current path that receives another portion of the multiplied current output signal. The first current path is in series with the first current output signal to facilitate balancing of currents between the first current output signal of the first photo detector and the second current output signal of the second photo detector.

Abstract translation: 电路包括第一光电检测器和第二光电检测器，用于接收第一和第二光输入信号，以分别响应于相应的光输入信号产生第一电流输出信号和第二电流输出信号。 电流倍增器级接收来自第二光电检测器的第二电流输出信号，以产生大于第二电流输出信号幅度的相乘的电流输出信号。 具有第一电流路径的差分乘法器接收相乘电流输出信号的一部分和接收相乘电流输出信号的另一部分的第二电流路径。 第一电流路径与第一电流输出信号串联，以便于平衡第一光电检测器的第一电流输出信号和第二光电检测器的第二电流输出信号之间的电流。

公开(公告)号：US20160313176A1

公开(公告)日：2016-10-27

申请号：US14792374

申请日：2015-07-06

Applicant: SALUTRON, INC.

Inventor： Yong Jin Lee

IPC: G01J1/42 ,  G01J1/02 ,  H01L31/101 ,  A61B5/0205 ,  A61B5/00

CPC classification number: G01J1/429 ,  A61B5/02405 ,  A61B5/02416 ,  A61B5/02438 ,  A61B5/1118 ,  A61B5/443 ,  A61B5/681 ,  A61B2560/0242 ,  G01J1/0228 ,  G01J1/0295 ,  G01J1/18 ,  G01J2001/4266 ,  H01L31/101

Abstract: A user-wearable device includes a front facing first light detector and a backside optical sensor, which faces the user's skin and includes a light source and a second light detector. The device also includes a skin tone detector and an ultraviolet (UV) exposure detector. The UV exposure detector is adapted to determine estimate(s) of a user's exposure to UV light in dependence on signal(s) produced using the first light detector, calibrate UV exposure threshold(s) in dependence on a skin tone metric produced using the skin tone detector, compare estimate(s) of a user's exposure to UV light to calibrated UV exposure threshold(s), and selectively trigger an alert in dependence on results of the comparison(s). The second light detector is also used to produce a photoplethysmography (PPG) signal from which measures heart rate (HR), heart rate variability (HRV), respiration rate (RR) or respiratory sinus arrhythmia (RSA) is/are produced.

Abstract translation: 用户佩戴式装置包括面向使用者的皮肤并包括光源和第二光检测器的面向前的第一光检测器和背面光学传感器。 该装置还包括皮肤色调检测器和紫外线（UV）曝光检测器。 UV曝光检测器适于根据使用第一光检测器产生的信号来确定用户对UV光的曝光的估计，根据使用第二光检测器产生的肤色度量校准UV曝光阈值 肤色检测器，将用户对UV光的暴露的估计与校准的UV曝光阈值进行比较，以及根据比较结果选择性地触发警报。 第二个光检测器也用于产生测量心率（HR），心率变异性（HRV），呼吸率（RR）或呼吸窦性心律失常（RSA）的光学体积描记图（PPG）信号。

公开(公告)号：US09324146B2

公开(公告)日：2016-04-26

申请号：US14741036

申请日：2015-06-16

Applicant: Northwestern University

Inventor： Paul J. Olczak ,  John E. Tumblin

IPC: H04N17/00 ,  G06T7/00 ,  G01J1/42 ,  G01J1/02

CPC classification number: G06T7/0018 ,  G01J1/0295 ,  G01J1/4214 ,  G06T2207/10016 ,  G06T2207/10144 ,  H04N17/002

Abstract: Certain examples provide photometric or radiometric calibration using optical feedback. A disclosed example includes dithering between a first display pixel value and a second display pixel value to create a light source from a display. The disclosed example includes capturing the light source using a camera via a plurality of photographs taken by the camera. Each photograph includes a plurality of camera pixels. The disclosed example includes determining a camera response by measuring plurality of camera quantization levels associated with the plurality of camera pixels based on the first display pixel value and the second display pixel value. The disclosed example also includes determining a display response based on the plurality of camera quantization levels. The display response includes a plurality of luminance output values of the display.

Abstract translation: 某些示例使用光学反馈提供光度或辐射校准。 所公开的示例包括在第一显示像素值和第二显示像素值之间的抖动以从显示器创建光源。 所公开的示例包括通过照相机拍摄的多张照片使用相机拍摄光源。 每张照片包括多个照相机像素。 所公开的示例包括基于第一显示像素值和第二显示像素值来测量与多个相机像素相关联的多个相机量化级别来确定相机响应。 所公开的示例还包括基于多个相机量化级别来确定显示响应。 显示响应包括显示器的多个亮度输出值。

公开(公告)号：US09239259B2

公开(公告)日：2016-01-19

申请号：US14000872

申请日：2011-10-13

Applicant: Kazuaki Ohkubo ,  Greg McKee

Inventor： Kazuaki Ohkubo ,  Greg McKee

IPC: G01J1/00 ,  G01J1/04 ,  G01J1/02 ,  F21V7/10 ,  G01J1/42

CPC classification number: G01J1/0407 ,  F21V7/10 ,  G01J1/0295 ,  G01J1/42 ,  G01J2001/0481 ,  G01J2001/4247

Abstract: An optical measurement system includes an integrating sphere having a reflecting surface on its inner wall and having a first window. The optical measurement system further includes a support member for supporting a light source at a substantially central position of the integrating sphere, and a first baffle arranged on a line connecting the first window and the light source supported by the support member. The support member is connected, in a region opposite to the first window with respect to the light source, to the inner wall of the integrating sphere.

Abstract translation: 光学测量系统包括积分球，其在其内壁上具有反射表面并且具有第一窗口。 光学测量系统还包括用于将光源支撑在积分球的大致中心位置处的支撑构件和布置在连接由支撑构件支撑的第一窗口和光源的线路上的第一挡板。 支撑构件在与第一窗口相对于光源相对的区域中连接到积分球的内壁。

公开(公告)号：US20150369656A1

公开(公告)日：2015-12-24

申请号：US14648649

申请日：2013-12-19

Applicant: Halliburton Energy Services, Inc.

Inventor： Dingding Chen ,  David L. Perkins

IPC: G01J1/02 ,  G01D18/00

CPC classification number: G01J1/0295 ,  E21B41/00 ,  E21B47/123 ,  G01D18/002

Abstract: The disclosed embodiments include a method, apparatus, and computer program product for generating a cross-sensor standardization model. For example, one disclosed embodiment includes a system that includes at least one processor; at least one memory coupled to the at least one processor and storing instructions that when executed by the at least one processor performs operations comprising selecting a representative sensor from a group of sensors comprising at least one of same primary optical elements and similar synthetic optical responses and calibrating a cross-sensor standardization model based on a matched data pair for each sensor in the group of sensors and for the representative sensor. In one embodiment, the at least one memory coupled to the at least one processor and storing instructions that when executed by the at least one processor performs operations further comprises generating the matched data pair, wherein the matched data pair comprises calibration input data and calibration output data.

Abstract translation: 所公开的实施例包括用于产生交叉传感器标准化模型的方法，装置和计算机程序产品。 例如，一个公开的实施例包括一个包括至少一个处理器的系统; 至少一个存储器，其耦合到所述至少一个处理器并且存储当所述至少一个处理器执行时执行操作的指令，所述指令包括从包括相同主要光学元件和类似合成光学响应中的至少一个的一组传感器中选择代表性传感器，以及 基于传感器组中的每个传感器和代表性传感器的匹配数据对来校准交叉传感器标准化模型。 在一个实施例中，所述至少一个存储器耦合到所述至少一个处理器并且存储当所述至少一个处理器执行的操作执行操作时的指令还包括生成所述匹配数据对，其中所述匹配数据对包括校准输入数据和校准输出 数据。

公开(公告)号：US20150064833A1

公开(公告)日：2015-03-05

申请号：US14534187

申请日：2014-11-06

Applicant: PixArt Imaging Inc.

Inventor： Wei-Chung Wang

IPC: H01L31/0203 ,  H01L31/0232 ,  G01J1/04 ,  G01J1/42 ,  G01J1/02

CPC classification number: H01L31/0203 ,  G01J1/0295 ,  G01J1/0411 ,  G01J1/42 ,  G06F3/0428 ,  H01L31/02325 ,  H01L2224/16225 ,  H01L2224/32225 ,  H01L2224/48091 ,  H01L2224/73204 ,  H01L2224/92125 ,  H01L2224/92247 ,  H01L2924/00011 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2224/0401

Abstract: A connector of connecting a light sensor and a substrate is utilized for rotating the light sensor so that the light-receiving direction of the light sensor is parallel with the substrate. When the connector is utilized in an optical touch system, the light sensor can be disposed on the substrate of the optical touch system by means of general manufacturing facilities of flat display panels. Meanwhile, the light-receiving direction of the light sensor is parallel with the substrate of the optical touch system.

Abstract translation: 连接光传感器和基板的连接器用于旋转光传感器，使得光传感器的光接收方向与基板平行。 当在光学触摸系统中使用连接器时，光传感器可以通过平板显示面板的一般制造设备设置在光学触摸系统的基板上。 同时，光传感器的光接收方向与光学触摸系统的基板平行。

公开(公告)号：US20140374600A1

公开(公告)日：2014-12-25

申请号：US14307582

申请日：2014-06-18

Applicant: Silicon Laboratories Inc.

Inventor： Jefferson L. Gokingco ,  Moshe M. Altmejd ,  Colin M. Tompkins

IPC: G01J3/02

CPC classification number: G01J1/0295 ,  G01J1/0488 ,  G01J1/16 ,  G01J1/4228 ,  G01J1/429 ,  G01J2001/1663

Abstract: An ultraviolet radiation sensor includes an ultraviolet pass filter. A first photodiode senses light passing through the ultraviolet pass filter and provides an indication of ultraviolet light. A second photodiode provides an indication of infrared radiation. A correction circuit corrects the indication of ultraviolet light sensed by the first photodiode using the indication of infrared to account for infrared radiation that passes through the ultraviolet pass filter. Additional photodiodes may be used to correct for leakage current in the first and second photodiodes and stray infrared radiation that may affect the output of the first and second photodiodes.

Abstract translation: 紫外线辐射传感器包括紫外线通过滤光器。 第一光电二极管感测通过紫外线通过滤光器的光并提供紫外光的指示。 第二光电二极管提供红外辐射的指示。 校正电路使用红外线的指示来校正由第一光电二极管感测的紫外光的指示，以考虑穿过紫外线通过滤光器的红外辐射。 可以使用附加的光电二极管来校正可能影响第一和第二光电二极管输出的第一和第二光电二极管和杂散红外辐射中的漏电流。

公开(公告)号：US08878124B2

公开(公告)日：2014-11-04

申请号：US13443809

申请日：2012-04-10

Applicant: Hung-Ching Lai ,  Chun-Sheng Lin

Inventor： Hung-Ching Lai ,  Chun-Sheng Lin

IPC: H01J40/14 ,  G06F3/042

CPC classification number: G01J1/0295 ,  G01J1/0271 ,  G01J1/0407 ,  G06F3/0421 ,  G06F3/0428

Abstract: An optical touch device with a detecting area includes light guide components, a light source module, a light detecting component and an auxiliary light guide component. Each light guide component includes a first light emitting surface. The light guide components includes a first light guide component and a second light guide component. The auxiliary light guide component and the light detecting component are disposed between two neighboring ends of the first light guide component and the second light guide component, and the light detecting component includes a light detecting end. The auxiliary light guide component is positioned between the light detecting component and the detecting area and includes a first light incidence surface, a second light incidence surface and a second light emitting surface connected between the first light incidence surface and the second light incidence surface. The optical touch device can effectively avoid the blind zone problem.

Abstract translation: 具有检测区域的光学触摸装置包括导光部件，光源模块，光检测部件和辅助光导部件。 每个导光部件包括第一发光面。 光导部件包括第一光导部件和第二光导部件。 辅助光导部件和光检测部件设置在第一导光部件和第二导光部件的两个相邻端之间，光检测部件包括光检测端。 辅助光导部件位于光检测部件和检测区域之间，并且包括连接在第一光入射表面和第二光入射表面之间的第一光入射表面，第二光入射表面和第二发光表面。 光学触摸装置可以有效地避免盲区问题。

公开(公告)号：US20130327929A1

公开(公告)日：2013-12-12

申请号：US14000872

申请日：2011-10-13

Applicant: Kazuaki Ohkubo ,  Greg McKee

Inventor： Kazuaki Ohkubo ,  Greg McKee

IPC: G01J1/04 ,  F21V7/10

CPC classification number: G01J1/0407 ,  F21V7/10 ,  G01J1/0295 ,  G01J1/42 ,  G01J2001/0481 ,  G01J2001/4247

Abstract: An optical measurement system includes an integrating sphere having a reflecting surface on its inner wall and having a first window. The optical measurement system further includes a support member for supporting a light source at a substantially central position of the integrating sphere, and a first baffle arranged on a line connecting the first window and the light source supported by the support member. The support member is connected, in a region opposite to the first window with respect to the light source, to the inner wall of the integrating sphere.

Abstract translation: 光学测量系统包括积分球，其在其内壁上具有反射表面并且具有第一窗口。 光学测量系统还包括用于将光源支撑在积分球的大致中心位置处的支撑构件和布置在连接由支撑构件支撑的第一窗口和光源的线路上的第一挡板。 支撑构件在与第一窗口相对于光源相对的区域中连接到积分球的内壁。

公开(公告)号：US20120318957A1

公开(公告)日：2012-12-20

申请号：US13443809

申请日：2012-04-10

Applicant: Hung-Ching LAI ,  Chun-Sheng LIN

Inventor： Hung-Ching LAI ,  Chun-Sheng LIN

IPC: G01C21/00

CPC classification number: G01J1/0295 ,  G01J1/0271 ,  G01J1/0407 ,  G06F3/0421 ,  G06F3/0428

Abstract: An optical touch device with a detecting area includes light guide components, a light source module, a light detecting component and an auxiliary light guide component. Each light guide component includes a first light emitting surface. The light guide components includes a first light guide component and a second light guide component. The auxiliary light guide component and the light detecting component are disposed between two neighboring ends of the first light guide component and the second light guide component, and the light detecting component includes a light detecting end. The auxiliary light guide component is positioned between the light detecting component and the detecting area and includes a first light incidence surface, a second light incidence surface and a second light emitting surface connected between the first light incidence surface and the second light incidence surface. The optical touch device can effectively avoid the blind zone problem.

Abstract translation: 具有检测区域的光学触摸装置包括导光部件，光源模块，光检测部件和辅助光导部件。 每个导光部件包括第一发光面。 光导部件包括第一光导部件和第二光导部件。 辅助光导部件和光检测部件设置在第一导光部件和第二导光部件的两个相邻端之间，光检测部件包括光检测端。 辅助光导部件位于光检测部件和检测区域之间，并且包括连接在第一光入射表面和第二光入射表面之间的第一光入射表面，第二光入射表面和第二发光表面。 光学触摸装置可以有效地避免盲区问题。