公开(公告)号：US20180041683A1

公开(公告)日：2018-02-08

申请号：US15785642

申请日：2017-10-17

Applicant: NATIONAL TSING HUA UNIVERSITY

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

IPC: H04N5/235 ,  H04N5/225 ,  H04N5/355

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

Abstract: 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.

公开(公告)号：US20170108376A1

公开(公告)日：2017-04-20

申请号：US15065732

申请日：2016-03-09

Applicant: Cubic Corporation

Inventor： Tony Maryfield ,  Mahyar Dadkhah

IPC: G01J1/44 ,  G01S17/02 ,  F41G3/06 ,  H01L31/105 ,  H01L31/0304 ,  H01L31/0203 ,  G01S7/486 ,  H01L31/02

CPC classification number: G01J1/44 ,  F41G1/38 ,  F41G3/06 ,  F41G3/08 ,  F41G3/145 ,  G01J2001/4406 ,  G01J2001/446 ,  G01S7/486 ,  G01S17/023 ,  G01S17/88 ,  G02B23/105 ,  G02B23/18 ,  G02B27/20 ,  G06T5/003 ,  G06T5/20 ,  G06T5/50 ,  G06T7/20 ,  G06T7/33 ,  G06T7/73 ,  G06T11/60 ,  G06T2207/10012 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/20224 ,  G06T2207/30212 ,  H01L31/02005 ,  H01L31/02019 ,  H01L31/0203 ,  H01L31/03046 ,  H01L31/105 ,  H04N5/23222 ,  H04N5/33 ,  H04N13/204

Abstract: Techniques are disclosed for providing an optical sensor that can be used for wind sensing and an optical scope. The optical sensor can include a photodiode, an electrical switch, a trans-impedance amplifier (TIA), and a capacitive trans-impedance amplifier (CTIA), enabling the optical sensor to perform both wind-sensing and range-finding functions. Some embodiments may include some or all of these components in an application-specific integrated circuit (ASIC), depending on desired functionality.

公开(公告)号：US09595934B2

公开(公告)日：2017-03-14

申请号：US14829490

申请日：2015-08-18

Applicant: Seek Thermal, Inc.

Inventor： Jason Wolfe ,  William J. Parrish ,  Ross Williams

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

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09466120B2

公开(公告)日：2016-10-11

申请号：US15065715

申请日：2016-03-09

Applicant: Cubic Corporation

Inventor： Tony Maryfield ,  Mahyar Dadkhah ,  Christopher Chastain Neuhauser

IPC: G06K9/00 ,  G06T7/20 ,  H04N5/33 ,  H04N13/02 ,  G02B27/20 ,  F41G3/06 ,  F41G3/08

CPC classification number: G01J1/44 ,  F41G1/38 ,  F41G3/06 ,  F41G3/08 ,  F41G3/145 ,  G01J2001/4406 ,  G01J2001/446 ,  G01S7/486 ,  G01S17/023 ,  G01S17/88 ,  G02B23/105 ,  G02B23/18 ,  G02B27/20 ,  G06T5/003 ,  G06T5/20 ,  G06T5/50 ,  G06T7/20 ,  G06T7/33 ,  G06T7/73 ,  G06T11/60 ,  G06T2207/10012 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/20224 ,  G06T2207/30212 ,  H01L31/02005 ,  H01L31/02019 ,  H01L31/0203 ,  H01L31/03046 ,  H01L31/105 ,  H04N5/23222 ,  H04N5/33 ,  H04N13/204

Abstract: Techniques are disclosed for determining the location of laser spot in an image, enabling wind sensing to be performed on captured images of the laser spot. Techniques can include image averaging, background subtraction, and filtering to help ensure that the Gaussian laser spot is detected in the image. Embodiments may include defining a bounding region and altering the operation of a camera such that the camera does not provide pixel data from pixels sensors corresponding pixels of outside the bounding region in subsequent image captures. Embodiments may additionally or alternatively include extracting two stereoscopic images from a single image capture.

Abstract translation: 公开了用于确定图像中激光点的位置的技术，使得能够对所拍摄的激光光斑的图像执行风感测。 技术可以包括图像平均，背景减法和滤波，以帮助确保在图像中检测到高斯激光点。 实施例可以包括定义边界区域并改变相机的操作，使得相机不会在随后的图像捕获中对与边界区域外的像素相对应的像素传感器提供像素数据。 实施例可以另外地或替代地包括从单个图像捕获提取两个立体图像。

公开(公告)号：US20150382425A1

公开(公告)日：2015-12-31

申请号：US14314556

申请日：2014-06-25

Applicant: Ketra, Inc.

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

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

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20150369638A1

公开(公告)日：2015-12-24

申请号：US14510358

申请日：2014-10-09

Applicant: NATIONAL TSING HUA UNIVERSITY

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

IPC: G01D9/00

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5179423A

公开(公告)日：1993-01-12

申请号：US736721

申请日：1991-07-26

Applicant: Alan Kravetz ,  Harold Van Aken ,  Kenneth Garde

Inventor： Alan Kravetz ,  Harold Van Aken ,  Kenneth Garde

IPC: G01J1/44 ,  G01J3/10 ,  G01J3/28

CPC classification number: G01J3/2803 ,  G01J1/44 ,  G01J3/10 ,  G01J3/28 ,  G01J2001/4406 ,  G01J2001/444

Abstract: 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.

公开(公告)号：US5153424A

公开(公告)日：1992-10-06

申请号：US651476

申请日：1991-02-06

Applicant: Mark E. Gramer

Inventor： Mark E. Gramer

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

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5138149A

公开(公告)日：1992-08-11

申请号：US578538

申请日：1990-09-05

Applicant: Raymond J. Cadet ,  Hung-Nan Chao ,  Sing-wing Hui ,  Eric Bogatin ,  Steven C. Leach

Inventor： Raymond J. Cadet ,  Hung-Nan Chao ,  Sing-wing Hui ,  Eric Bogatin ,  Steven C. Leach

IPC: G01J1/44 ,  G01N21/27

CPC classification number: H01J37/32963 ,  G01N21/27 ,  G01J2001/4406 ,  G01N21/4738 ,  G01N2201/0621 ,  G01N2201/1222 ,  G01N2201/124

Abstract: A sensor board for use with an endpoint controller which monitors light intensity is provided. The sensor board can provide a dynamic range of up to five million because a constant current driver and phase sensitive detector help eliminate noise from the detected signal. The sensor board can also subtract a DC voltage offset from the detected signal and amplify the difference to provide increased resolution of small changes in the detected signal.

Abstract translation: 提供了一种用于监视光强度的端点控制器的传感器板。 传感器板可以提供高达500万的动态范围，因为恒定电流驱动器和相位敏感检测器有助于消除检测到的信号中的噪声。 传感器板还可以从检测到的信号中减去直流电压偏移，并放大差值，以提高检测信号的小变化分辨率。

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。