Semiconductor light detection device and method of detecting light of specific wavelength

    公开(公告)号:US11209308B2

    公开(公告)日:2021-12-28

    申请号:US16146102

    申请日:2018-09-28

    Applicant: ABLIC Inc.

    Abstract: Provided is a semiconductor light detection device having a relatively high detection sensitivity to a light component of a specific wavelength. The semiconductor light detection device includes: a semiconductor light receiving element, in which a first conductive layer is formed on a surface of a semiconductor substrate, a second conductive layer is formed below the first conductive layer, a third conductive layer is formed below the second conductive layer, and a photocurrent based on the intensity of incident light is output from the third conductive layer while an input voltage is applied to the first conductive layer; and a semiconductor detection circuit configured to output an output voltage based on a current difference between a first photocurrent and a second photocurrent being output in response to the application of the first input voltage and the second input voltage, respectively.

    Optical detecting device and related method of adjusting synchronization
    115.
    发明授权
    Optical detecting device and related method of adjusting synchronization 有权
    光学检测装置及相关调整同步方法

    公开(公告)号:US09459140B2

    公开(公告)日:2016-10-04

    申请号:US14195862

    申请日:2014-03-04

    Abstract: A method of an optical detecting device for synchronizing an exposure timing sequence of an image detector with a light emitting timing sequence of a reference light source is disclosed. The method includes capturing a continued image set according to a predetermined period, analyzing intensity variation of the continued image set, and adjusting the exposure timing sequence of an image detector according to the intensity variation, so as to synchronize the exposure timing sequence of the image detector with the light emitting timing sequence of the reference light source.

    Abstract translation: 公开了一种用于使图像检测器的曝光定时序列与参考光源的发光定时序列同步的光学检测装置的方法。 该方法包括根据预定时段捕获连续图像集,分析连续图像集合的强度变化,以及根据强度变化调整图像检测器的曝光定时序列,以使图像的曝光定时序列同步 检测器具有参考光源的发光定时序列。

    Ambient light sensors with photodiode leakage current compensation
    116.
    发明授权
    Ambient light sensors with photodiode leakage current compensation 有权
    环境光传感器,带有光电二极管泄漏电流补偿

    公开(公告)号:US09116043B2

    公开(公告)日:2015-08-25

    申请号:US13845641

    申请日:2013-03-18

    Applicant: Apple Inc.

    Inventor: Dong Zheng

    CPC classification number: G01J1/4204 G01J1/10 G09G5/10 G09G2360/144

    Abstract: An electronic device may have a display with a brightness that is adjusted based on data gathered from one or more ambient light sensors (ALSs). In one suitable arrangement, an ALS may include a photodiode, a temperature sensor, a scaler, an analog-to-digital converter (ADC), and a subtractor. The subtractor may have a first input coupled to the photodiode via the ADC, a second input coupled to the temperature sensor via the scaler, and an output on which a leakage-compensated sensor output is provided. In another suitable arrangement, the ALS may include first and second photodiodes, a light blocking layer formed over the second photodiode, a scaler, and a subtractor. The subtractor may have a first input coupled to the first photodiode, a second input coupled to the second photodiode via the scaler, and an output on which a leakage-compensated sensor output is provided.

    Abstract translation: 电子设备可以具有基于从一个或多个环境光传感器(ALS)收集的数据来调整亮度的显示器。 在一种合适的布置中,ALS可以包括光电二极管,温度传感器,缩放器,模数转换器(ADC)和减法器。 减法器可以具有经由ADC耦合到光电二极管的第一输入,经由定标器耦合到温度传感器的第二输入,以及在其上提供泄漏补偿传感器输出的输出。 在另一合适的布置中,ALS可以包括第一和第二光电二极管,形成在第二光电二极管上的遮光层,缩放器和减法器。 所述减法器可以具有耦合到所述第一光电二极管的第一输入端,经由所述定标器耦合到所述第二光电二极管的第二输入端以及设置有泄漏补偿传感器输出端的输出端。

    INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD
    118.
    发明申请
    INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD 审中-公开
    信息处理设备和信息处理方法

    公开(公告)号:US20150042698A1

    公开(公告)日:2015-02-12

    申请号:US14456507

    申请日:2014-08-11

    Inventor: Nobuaki TAKASU

    CPC classification number: G09G3/20 G01J1/4204 G09G2320/0626 G09G2360/144

    Abstract: There is provided an information processing apparatus including a display portion, an illuminance sensor and a controller. The display portion has a display screen. The illuminance sensor measures an ambient brightness of the display screen at a first interval. The controller shifts the illuminance sensor to a state in which the illuminance sensor measures the ambient brightness at a second interval which is longer than the first interval when a change of the brightness is relatively small.

    Abstract translation: 提供了一种包括显示部分,照度传感器和控制器的信息处理设备。 显示部分具有显示屏。 照度传感器以第一间隔测量显示屏的环境亮度。 控制器将照度传感器移动到当亮度变化相对较小时,照度传感器以比第一间隔长的第二间隔测量环境亮度的状态。

    Standard for wavelength and intensity for spectrometers
    119.
    发明授权
    Standard for wavelength and intensity for spectrometers 有权
    光谱仪的波长和强度标准

    公开(公告)号:US08836938B2

    公开(公告)日:2014-09-16

    申请号:US12122861

    申请日:2008-05-19

    CPC classification number: G01N21/278 G01N21/359

    Abstract: The description relates to a standard for wavelength and intensity for spectrometers, particularly for calibrating and testing measurement heads in spectrometers which are usable primarily in the near infrared region (NIR) of the spectrum. The standard comprises a holder and a plate body arranged in the holder. The plate body is made of transparent plastic with high strength and dimensional stability over a large temperature range. The plastic has distinct absorption bands throughout the entire NIR range and has a chemical structure and composition ensuring an extensive moisture barrier against water absorption and water release in a reliable and stable manner over time. The plate body advantageously comprises an amorphous, transparent copolymer based on cyclic and/or linear olefins.

    Abstract translation: 该描述涉及用于光谱仪的波长和强度的标准,特别是用于校准和测试主要在光谱的近红外区域(NIR)中的光谱仪中的测量头。 该标准包括安置在保持器中的保持器和板体。 板体采用透明塑料制成,强度高,尺寸稳定性高。 该塑料在整个NIR范围内具有不同的吸收带,并具有化学结构和组成,可确保以可靠和稳定的方式随着时间的推移吸收和释放水分。 板体有利地包括基于环状和/或线性烯烃的无定形透明共聚物。

    Multichannel optical power meter using free space beam sampling
    120.
    发明授权
    Multichannel optical power meter using free space beam sampling 有权
    多通道光功率计采用自由空间光束采样

    公开(公告)号:US08822906B2

    公开(公告)日:2014-09-02

    申请号:US13296126

    申请日:2011-11-14

    Abstract: An optical device and method providing multi-channel bulk optical power monitoring is disclosed. The device and method may include a scanning mirror, a plurality of input optical fibers, a plurality of output optical fibers, and at least one sample optical fiber optically connected to a photodetector. The device and method may further include a first reflective surface and a second reflective surface. The first reflective surface may reflect light from the input optical fibers to the second reflective surface. The second reflective surface may reflect a first portion of the light into the output optical fibers and pass a second portion of the light to the scanning mirror. The scanning mirror may reflect samples of the second portion of the light into the at least one sample optical fiber.

    Abstract translation: 公开了提供多通道体光功率监测的光学装置和方法。 该装置和方法可以包括扫描镜,多个输入光纤,多个输出光纤以及与光电检测器光学连接的至少一个采样光纤。 该装置和方法还可以包括第一反射表面和第二反射表面。 第一反射表面可以将来自输入光纤的光反射到第二反射表面。 第二反射表面可以将光的第一部分反射到输出光纤中,并将光的第二部分传递到扫描反射镜。 扫描镜可以将第二部分光的样品反射到至少一个采样光纤中。

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