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93 条记录 (耗时 0.036 秒)

    Gain calibration for an imaging system
    5.
    发明授权
    Gain calibration for an imaging system 有权
    为成像系统增益校准

    公开(公告)号：US09595934B2

    公开(公告)日：2017-03-14

    申请号：US14829490

    申请日：2015-08-18

    申请人： Seek Thermal, Inc.

    发明人： Jason Wolfe ,  William J. Parrish ,  Ross Williams

    IPC分类号： G01J5/22 ,  H03G3/30 ,  H04N5/365 ,  H04N5/33 ,  G01J1/18 ,  G01J5/00 ,  G01J1/44

    CPC分类号： H03G3/3084 ,  G01J1/18 ,  G01J1/44 ,  G01J5/22 ,  G01J5/34 ,  G01J2001/4406 ,  G01J2001/444 ,  G01J2005/0048 ,  G01J2005/0077 ,  G01R27/2605 ,  H01G7/00 ,  H04N5/33 ,  H04N5/3651 ,  H04N5/3655

    摘要： An imaging system includes an array of photodetectors and electronic circuitry associated with the photodetectors to read intensity values from the photodetectors. The electronic circuitry can include an integrator with an integrator capacitor having a nominal capacitance, wherein a gain of the electronic circuitry associated with a photodetector can depend at least in part on the actual capacitance of the integrator capacitor, the actual capacitance differing from the nominal capacitance. The imaging system can be configured to determine a gain factor that depends at least in part on the actual capacitance and/or a signal voltage input to the integrator. The imaging system can be configured to apply the gain factor based at least in part on the actual capacitance of the integrator capacitor calculated. The imaging system can be a thermal imaging system and may include an infrared camera core.

    摘要翻译： 成像系统包括与光电检测器相关联的光电检测器和电子电路的阵列，以从光电检测器读取强度值。 电子电路可以包括具有标称电容的积分器电容器的积分器，其中与光电检测器相关联的电子电路的增益至少部分取决于积分电容器的实际电容，实际电容不同于标称电容 。 成像系统可以被配置为确定至少部分地取决于输入到积分器的实际电容和/或信号电压的增益因子。 成像系统可以被配置为至少部分地基于所计算的积分电容器的实际电容来施加增益因子。 成像系统可以是热成像系统，并且可以包括红外相机芯。

    Illumination Device and Method for Calibrating and Controlling an Illumination Device Comprising a Phosphor Converted LED
    7.
    发明申请
    Illumination Device and Method for Calibrating and Controlling an Illumination Device Comprising a Phosphor Converted LED 有权
    用于校准和控制包含磷光体转换LED的照明装置的照明装置和方法

    公开(公告)号：US20150382425A1

    公开(公告)日：2015-12-31

    申请号：US14314556

    申请日：2014-06-25

    申请人： Ketra, Inc.

    发明人： Jason E. Lewis ,  Horace C. Ho ,  David J. Knapp

    IPC分类号： H05B33/08 ,  G01J1/42 ,  G01J1/44 ,  G01J1/58

    CPC分类号： H05B33/0869 ,  G01J1/0252 ,  G01J1/42 ,  G01J1/4228 ,  G01J1/4257 ,  G01J1/44 ,  G01J1/58 ,  G01J3/505 ,  G01J2001/4252 ,  G01J2001/4406

    摘要： An illumination device described herein includes at least a phosphor converted LED, which is configured for emitting illumination for the illumination device, a first photodetector and a second photodetector. A spectrum of the illumination emitted from the phosphor converted LED comprises a first portion having a first peak emission wavelength and a second portion having a second peak emission wavelength, which differs from the first peak emission wavelength. The first photodetector has a detection range, which is configured for detecting only the first portion of the spectrum emitted by the phosphor converted LED. The second photodetector has a detection range, which is configured for detecting only the second portion of the spectrum emitted by the phosphor converted LED. Methods are provided herein for calibrating and controlling each portion of the phosphor converted LED spectrum, as if the phosphor converted LED were two separate LEDs.

    摘要翻译： 本文所述的照明装置至少包括被配置为发射用于照明装置的照明的磷光体转换LED，第一光电检测器和第二光电检测器。 从磷光体转换的LED发射的照明的光谱包括具有第一峰值发射波长的第一部分和具有与第一峰值发射波长不同的第二峰值发射波长的第二部分。 第一光检测器具有检测范围，该检测范围被配置为仅检测由磷光体转换的LED发射的光谱的第一部分。 第二光电检测器具有检测范围，该检测范围被配置为仅检测由磷光体转换的LED发射的光谱的第二部分。 本文提供了用于校准和控制磷光体转换的LED光谱的每个部分的方法，如同磷光体转换的LED是两个分离的LED。

    HIGH-DYNAMIC-RANGE SENSING DEVICE AND SENSING METHOD THEREOF
    8.
    发明申请
    HIGH-DYNAMIC-RANGE SENSING DEVICE AND SENSING METHOD THEREOF 审中-公开
    高动态范围传感装置及其感应方法

    公开(公告)号：US20150369638A1

    公开(公告)日：2015-12-24

    申请号：US14510358

    申请日：2014-10-09

    申请人： NATIONAL TSING HUA UNIVERSITY

    发明人： YEN-YIN LIN ,  ANN-SHYN CHIANG ,  AN-LUN CHIN ,  YUAN-YAO LIN

    IPC分类号： G01D9/00

    CPC分类号： H04N5/2355 ,  G01J1/4228 ,  G01J2001/1663 ,  G01J2001/4406 ,  G01R15/08 ,  G01R15/09 ,  H04N5/2254 ,  H04N5/35563 ,  H04R3/005

    摘要： The present invention provides a high-dynamic-range sensing device and the sensing method thereof. The high-dynamic-range sensing device includes a control unit and sensing units with different sensing ranges. In the sensing method, the sensing units give sensing values, and then the control unit compares the sensing values and the upper sensing limit of the sensing units, respectively. When a sensing value is equal to the upper sensing limit, the control unit rejects the sensing value or interrupts the sensing of the sensing unit thereof. Thereby, the sensing device quickly excludes the sensing units which obtain saturated signals and their sensing values and thus switches between the alternative sensing units with different sensing ranges or picks up the optimum one of the sensing values.

    摘要翻译： 本发明提供一种高动态范围感测装置及其感测方法。 高动态范围感测装置包括控制单元和具有不同感测范围的感测单元。 在感测方法中，感测单元给出感测值，然后控制单元分别比较感测值和感测单元的上限感测极限。 当感测值等于上限感测极限时，控制单元拒绝感测值或中断感测单元的感测。 因此，感测装置快速排除获得饱和信号及其感测值的感测单元，从而在具有不同感测范围的替代感测单元之间切换，或拾取感测值中的最佳一个。

    Gain stabilized self-scanning photo-diode array
    9.
    发明授权
    Gain stabilized self-scanning photo-diode array 失效
    增益稳定的自扫描光电二极管阵列

    公开(公告)号：US5179423A

    公开(公告)日：1993-01-12

    申请号：US736721

    申请日：1991-07-26

    申请人： Alan Kravetz ,  Harold Van Aken ,  Kenneth Garde

    发明人： Alan Kravetz ,  Harold Van Aken ,  Kenneth Garde

    IPC分类号： G01J1/44 ,  G01J3/10 ,  G01J3/28

    CPC分类号： G01J3/2803 ,  G01J1/44 ,  G01J3/10 ,  G01J3/28 ,  G01J2001/4406 ,  G01J2001/444

    摘要： A method and apparatus for stabilizing the gain of a self scanned photo-diode array is provided for use with spectrophotometers and other light measurement equipment. A gain stabilizer light emitting diode (LED) constantly illuminates the array so that photons are continuously impinging upon the self-scanned photo-diode array. In the course of a typical measurement sequence, an illuminated scan is first taken, wherein said photo-diode array is illuminated by LED and the light being analyzed, followed by a dark reading wherein the photo diode array is illuminated by the LED only. The dark reading measurement is then subtracted from the illuminated reading to derive an accurate reading of the light being analyzed.

    Flux monitor high light intensity cut-off circit for night vision devices
    10.
    发明授权
    Flux monitor high light intensity cut-off circit for night vision devices 失效
    通道监视器用于夜视设备的高亮度强度切断电路

    公开(公告)号：US5153424A

    公开(公告)日：1992-10-06

    申请号：US651476

    申请日：1991-02-06

    申请人： Mark E. Gramer

    发明人： Mark E. Gramer

    IPC分类号： G01J1/42 ,  G01J1/44 ,  H01J29/98 ,  H01J43/30

    CPC分类号： H01J29/98 ,  G01J1/44 ,  H01J43/30 ,  G01J2001/4406 ,  G01J2001/4493 ,  H01J2231/50015 ,  H01J2231/50063

    摘要： A flux monitor high light intensity cut-off circuit for a night vision device which includes a photo detector and an integrator. Incident light striking the photo detector causes its resistance to change, resulting in a voltage change at the photo detector. As long as the photo detector voltage is below a first threshold voltage level, the integrator is inoperative. When the voltage at the photo detector exceeds the first threshold voltage level, this voltage is then applied to the input of the integrator. The integrator then produces an output voltage proportional to the integral of the input current. Once the output voltage of the integrator reaches a second threshold voltage, power to an image intensifier assembly within the night vision device is interrupted.

    摘要翻译： 用于夜视装置的通量监视器高光强度截止电路，其包括光电检测器和积分器。 入射到光电检测器的入射光引起其电阻变化，导致光电检测器的电压变化。 只要光电检测器电压低于第一阈值电压电平，积分器就不起作用。 当光检测器的电压超过第一阈值电压时，该电压然后被施加到积分器的输入。 然后，积分器产生与输入电流的积分成比例的输出电压。 一旦积分器的输出电压达到第二阈值电压，则夜视设备内的图像增强器组件的功率被中断。