公开(公告)号：US08513892B2

公开(公告)日：2013-08-20

申请号：US13125457

申请日：2010-03-23

Applicant: Yoshitsugu Uedaira ,  Yuichiro Nakata ,  Junji Fujino

Inventor： Yoshitsugu Uedaira ,  Yuichiro Nakata ,  Junji Fujino

IPC: H05B37/02 ,  G01J5/10 ,  G01J5/20 ,  G01J1/46

CPC classification number: G01J1/4228 ,  G01J1/02 ,  G01J1/0228 ,  G01J1/18 ,  G01J1/32 ,  G01J1/4204 ,  G01J1/46 ,  H01L31/02019 ,  H03M1/124 ,  H03M1/14 ,  H03M1/60 ,  H04M2250/12 ,  H04W52/027

Abstract: In an illuminance sensor, a photoelectric converter (1) includes three photosensors (PS), and each photosensor (PS) outputs a current as a difference between photocurrents generated in two photodiodes (PDA, PDB) having different light reception characteristics. Ratios between light receiving areas of the two photodiodes (PDA, PDB) in the three photosensors (PS) are different from each other, and the sum of positive currents among output currents of the three photosensors (PS) is constant for a given illuminance, regardless of the type of light source. A computation control unit (7) obtains illuminance based on the sum of the positive currents among the output currents of the three photosensors (PS).

Abstract translation: 在照度传感器中，光电转换器（1）包括三个光电传感器（PS），并且每个光电传感器（PS）输出作为具有不同光接收特性的两个光电二极管（PDA，PDB）中产生的光电流之间的差的电流。 三个光电传感器（PS）中的两个光电二极管（PDA，PDB）的光接收区域之间的比例彼此不同，并且对于给定的照度，三个光电传感器（PS）的输出电流之间的正电流之和是恒定的， 不管光源类型如何。 计算控制单元（7）基于三个光电传感器（PS）的输出电流之中的正电流之和来获得照度。

公开(公告)号：US20130207006A1

公开(公告)日：2013-08-15

申请号：US13521920

申请日：2010-01-13

Applicant: Christoph Weiler

Inventor： Christoph Weiler

IPC: G01J1/18

CPC classification number: G01J1/18 ,  A47L15/4297 ,  A47L2401/10 ,  A47L2501/26 ,  G01F23/30 ,  G01F23/64 ,  G01F23/686 ,  G01N2035/1018

Abstract: A measuring transducer for detecting the formation of foam on a liquid, which is movably inserted into the liquid and the density of which is predetermined, or can be set, such that the measuring transducer floats on the surface of the liquid, wherein a device for determining the luminous flux incident on the top side of the measuring transducer is provided to detect the formation of foam on the liquid which, in many cases, is a process sequence property that is important for process optimization, and wherein an evaluation device of the measuring transducer is configured to output a signal for indicating the formation of the foam when the light flux determined undershoots a predefined threshold value.

Abstract translation: 一种用于检测在液体上形成泡沫的测量传感器，其可移动地插入到液体中，并且其密度是预定的或可被设定的，使得测量传感器漂浮在液体的表面上，其中， 确定入射在测量传感器的顶侧上的光束被提供以检测液体上的泡沫的形成，在许多情况下，其是对于工艺优化而言重要的工艺序列特性，并且其中测量的评估装置 换能器被配置为当所确定的光通量下冲预定阈值时输出用于指示泡沫形成的信号。

公开(公告)号：US08464855B2

公开(公告)日：2013-06-18

申请号：US13052162

申请日：2011-03-21

Applicant: Michael J. Lorello ,  Gary S. Jacobson ,  George J. Doutney

Inventor： Michael J. Lorello ,  Gary S. Jacobson ,  George J. Doutney

IPC: H01J40/14

CPC classification number: G01J1/46 ,  G01J1/18 ,  G01J1/4204

Abstract: Circuitry to control reflective optical sensors is provided that reduces false detections due to ambient light without compromising the performance of the optical sensors to detect dark materials. A reflective optical sensor includes an emitter LED and photo-detector arranged to receive light from the LED that is reflected by an object being detected. A first input of a comparator is coupled to the output of the photo-detector. A second input of the comparator is coupled to the output of the photo-detector through a filtering circuit. The filtering circuit operates to filter the detector's output and adaptively adjust the trigger threshold of the comparator, thereby enabling the photo-detector to be sensitive enough to detect dark mail pieces, i.e., those mail pieces that are minimally reflective, while being immune to repeated false triggers due to excessive ambient light.

Abstract translation: 提供了控制反射光学传感器的电路，其减少了由环境光引起的错误检测，而不会影响光学传感器检测暗材料的性能。 反射型光学传感器包括发射器LED和光电检测器，其布置成接收来自被检测物体反射的LED的光。 比较器的第一输入耦合到光检测器的输出端。 比较器的第二输入端通过滤波电路耦合到光电检测器的输出端。 滤波电路用于对检测器的输出进行滤波并自适应地调整比较器的触发阈值，从而使得光检测器足够灵敏以检测黑色邮件，即那些最小反射的邮件，同时不受重复的影响 由于过度的环境光引起的假触发。

公开(公告)号：US20130126716A1

公开(公告)日：2013-05-23

申请号：US13611607

申请日：2012-09-12

Applicant: YONG-JEI LEE ,  YOON-DONG PARK ,  YOUNG-GU JIN

Inventor： YONG-JEI LEE ,  YOON-DONG PARK ,  YOUNG-GU JIN

IPC: G01J1/44

CPC classification number: G01J1/44 ,  G01J1/0228 ,  G01J1/18 ,  G01S7/4914 ,  G01S17/89 ,  H04N5/3696

Abstract: A pixel circuit for a depth sensor operating in a detection period and an output period in either a first operating mode (high incident light intensity) or a second operating mode (low incident light intensity). The pixel circuit includes a light receiving unit generating charge in response to the incident light, a signal generation unit accumulating charge in a FDN in response to a transmission signal, reset signal and selection signal during the detection period, and generating an analog signal having a level corresponding to a voltage apparent at the FDN during the output period, and a refresh transistor coupled between a supply voltage and the light receiving unit and discharging charge to the supply voltage in response to a refresh signal.

Abstract translation: 用于在第一操作模式（高入射光强度）或第二操作模式（低入射光强度）中的检测周期和输出周期中操作的深度传感器的像素电路。 像素电路包括响应于入射光而产生电荷的光接收单元，信号生成单元响应于在检测周期期间的发送信号，复位信号和选择信号在FDN中累积电荷，并且生成具有 对应于在输出周期期间在FDN处显现的电压的电平，以及耦合在电源电压和光接收单元之间的刷新晶体管，并且响应于刷新信号将电荷放电到电源电压。

公开(公告)号：US20130101161A1

公开(公告)日：2013-04-25

申请号：US13591825

申请日：2012-08-22

Applicant: Petko FABER

Inventor： Petko FABER

IPC: G01J1/18

CPC classification number: G01J1/18 ,  G06K9/00825

Abstract: A method and device for distinguishing a self-luminous object from a reflecting object in a detection range of a camera of a vehicle having at least one headlight, when the object is illuminated by the headlight, are described. The method includes a step of receiving a relative position of the object with respect to the vehicle and a brightness value of the object from the camera. Furthermore, the method includes a step of comparing the brightness value to a self-luminous value expected at the relative position and a reflection value expected at the relative position. Moreover, the method includes a step of classifying the object as self-luminous, if the brightness value is within a self-luminous tolerance range about the self-luminous value or as reflecting, if the brightness value is within a reflection tolerance range about the reflection value.

Abstract translation: 描述了当物体被大灯照亮时，在具有至少一个前灯的车辆的照相机的检测范围内区分自发光物体与反射物体的方法和装置。 该方法包括接收对象相对于车辆的相对位置和来自相机的对象的亮度值的步骤。 此外，该方法包括将亮度值与在相对位置处预期的自发光值和预期在相对位置处的反射值进行比较的步骤。 此外，该方法包括将物体分类为自发光的步骤，如果亮度值在关于自发光值的自发光容差范围内或作为反射，则如果亮度值在大约的反射容限范围内 反射值。

公开(公告)号：US20120292488A1

公开(公告)日：2012-11-22

申请号：US13471249

申请日：2012-05-14

Applicant: Hamid Saadat

Inventor： Hamid Saadat

IPC: G01J1/44 ,  G02F1/01

CPC classification number: G02F1/133305 ,  G01J1/18 ,  G02F1/13306 ,  G02F2001/13312 ,  G02F2201/58

Abstract: Provided is a dimming helmet visor incorporating optical shutter technology therein for instantaneous conversion from a clear state to a dark state and vice versa. These visors find utility in helmets for anyone in changing lighting conditions outdoors, especially motorcyclists. The visor's optical shutter display is connected to a photodiode and a battery with both automatic and manual adjustment functionalities. A manual on/off switch is provided for power management. The photodiode responds to light intensity above a certain threshold and switches from a clear state to dark state in a matter of milliseconds once this threshold is reached.

Abstract translation: 提供了一种其中包含光学快门技术的调光头盔面罩，用于从清晰状态到暗状态的瞬时转换，反之亦然。 任何人在户外改变照明条件下，特别是摩托车骑士，这些遮阳板可用于头盔。 遮阳板的光学快门显示器连接到光电二极管和具有自动和手动调节功能的电池。 提供手动开/关开关用于电源管理。 光电二极管响应于高于某个阈值的光强度，一旦达到该阈值，则在几毫秒内从清除状态切换到暗状态。

公开(公告)号：US08290388B2

公开(公告)日：2012-10-16

申请号：US12724805

申请日：2010-03-16

Applicant: Kentaro Murayama

Inventor： Kentaro Murayama

IPC: G03G15/00

CPC classification number: G01J1/18 ,  B41J11/0095 ,  G01J1/42 ,  G03G15/0194 ,  G03G15/5058 ,  G03G2215/00059

Abstract: An image forming apparatus includes a sensor having a light emitting section for irradiating a detection area and a light receiving section for outputting a light sensitive signal indicative of the amount of the light received from the detection area. A sensor adjustment section adjusts the sensitivity of the sensor by varying the set value of an adjustable characteristic value associated with the sensitivity, based on explorative measurement of the adjustable characteristic value corresponding to a predetermined reference level of the light sensitive signal. If an estimation section estimates that the amount of a leakage current generated on the light receiving section is larger than a reference amount, a mitigation section mitigates the influence of the leakage current on the explorative measurement, by at least one of adjustment of the light receiving section for reduction of the leakage current and modification of the predetermined reference level.

Abstract translation: 图像形成装置包括具有用于照射检测区域的发光部分的传感器和用于输出表示从检测区域接收的光量的光敏信号的光接收部分。 基于对应于光敏信号的预定基准电平的可调特征值的探测测量，传感器调节部分通过改变与灵敏度相关联的可调整特征值的设定值来调节传感器的灵敏度。 如果估计部估计出在光接收部分产生的泄漏电流的量大于参考量，则缓解部分通过光接收的调节中的至少一个来减轻探测测量上的漏电流的影响 用于减小漏电流的部分和修改预定参考电平。

公开(公告)号：US08269717B2

公开(公告)日：2012-09-18

申请号：US12819849

申请日：2010-06-21

Applicant: Toshihiko Omi ,  Taro Nakata

Inventor： Toshihiko Omi ,  Taro Nakata

IPC: G09G3/36

CPC classification number: H01L31/101 ,  G01J1/02 ,  G01J1/0209 ,  G01J1/0214 ,  G01J1/0488 ,  G01J1/18 ,  G01J1/32 ,  G01J1/4204 ,  G01J1/4228 ,  G01J1/44 ,  G02F2201/58

Abstract: Provided is a photodetection device which is small in size and has excellent sensitivity. The photodetection device (10) puts cathode terminals of photodiodes (1 and 2) having different spectral characteristics, or a photodiode (1) provided with an optical filter and a photodiode (2) provided with a light shield layer, into an open end state, and detects light intensity of a desired wavelength region according to a difference in electric charges that have been stored in those photodiodes in a given period of time. Since the photodiodes 1 and 2 store electric charges, even if a photocurrent is small, it is possible to store the photocurrent to obtain the electric charges required for detection, permitting achievement of downsizing and high detection performance of the semiconductor device on which the photodiodes 1 and 2 are formed. It is also possible to realize a wide dynamic range by making the electric charge storage time variable according to the light intensity, to suppress electric power consumption by intermittently driving an element required for differential detection at the time of differential detection, and to reduce an effect from flicker by averaging the output.

Abstract translation: 提供了一种尺寸小且灵敏度高的光检测装置。 光检测装置（10）将具有不同光谱特性的光电二极管（1和2）的阴极端子或设置有滤光器的光电二极管（1）和设置有遮光层的光电二极管（2）放入开放状态 并且根据在给定时间段内存储在那些光电二极管中的电荷的差异来检测期望波长区域的光强度。 由于光电二极管1和2存储电荷，即使光电流小，也可以存储光电流以获得检测所需的电荷，从而可以实现半导体器件的小型化和高检测性能，其中光电二极管1 和2。 还可以通过使电荷存储时间根据光强度而变化来实现宽的动态范围，通过间歇地驱动差分检测时的差分检测所需的元件来抑制电力消耗，并且降低效果 从平均输出的闪烁。

公开(公告)号：US08263926B2

公开(公告)日：2012-09-11

申请号：US12752173

申请日：2010-04-01

Applicant: Tatsuya Arao ,  Atsushi Hirose ,  Kazuo Nishi ,  Yuusuke Sugawara

Inventor： Tatsuya Arao ,  Atsushi Hirose ,  Kazuo Nishi ,  Yuusuke Sugawara

IPC: H03F3/08 ,  H01L27/00 ,  H04N3/14

CPC classification number: G01J1/18 ,  G01J1/44 ,  G01J2001/4406 ,  G09G3/3611 ,  G09G2320/0626 ,  G09G2360/144 ,  G09G2360/145 ,  H01L27/14609 ,  H01L27/14618 ,  H01L27/14643 ,  H01L27/14692 ,  H01L31/101 ,  H01L31/105 ,  H01L2924/0002 ,  H01L2924/00

Abstract: It is an object to provide a photoelectric conversion device which detects light ranging from weak light to strong light. The present invention relates to a photoelectric conversion device having a photodiode having a photoelectric conversion layer, an amplifier circuit including a thin film transistor and a bias switching means, where a bias which is connected to the photodiode and the amplifier circuit is switched by the bias switching means when intensity of incident light exceeds predetermined intensity, and accordingly, light which is less than the predetermined intensity is detected by the photodiode and light which is more than the predetermined intensity is detected by the thin film transistor of the amplifier circuit. By the present invention, light ranging from weak light to strong light can be detected.

Abstract translation: 本发明的目的是提供一种检测从弱光到强光的光的光电转换装置。 本发明涉及具有光电转换层的光电二极管的光电转换装置，包括薄膜晶体管的放大电路和偏置开关装置，其中连接到光电二极管和放大器电路的偏压通过偏置 开关意味着当入射光的强度超过预定强度时，由光电二极管检测到小于预定强度的光，并且由放大电路的薄膜晶体管检测出大于预定强度的光。 通过本发明，可以检测从弱光到强光的光。

公开(公告)号：US20120068608A1

公开(公告)日：2012-03-22

申请号：US12884980

申请日：2010-09-17

Applicant: Mark Covaro ,  Nathanael A. Ramella

Inventor： Mark Covaro ,  Nathanael A. Ramella

IPC: G01J1/20 ,  H05B37/02

CPC classification number: G01J1/18 ,  G01J3/463 ,  G01J3/50 ,  H05B37/0263 ,  H05B37/0272 ,  H05B37/029

Abstract: A system for auto-commissioning a light fixture may position the light fixture based on sensor data received from at least one sensor. In order to focus the light fixture on a target location, the system may vary the position of the light fixture and determine a position of the light fixture where the light level received by the photosensor reaches a determined light level. The system may adjust a light characteristic of light emitted by the light fixture so that the color of light received by the photosensor at the target location matches a target light characteristic, such as color or intensity. The system may determine a focus position and a light characteristic for multiple target locations. The system may auto-commission multiple light fixtures.

Abstract translation: 用于自动调试灯具的系统可以基于从至少一个传感器接收的传感器数据来定位灯具。 为了将灯具聚焦在目标位置上，系统可以改变灯具的位置，并且确定由光传感器接收的光级达到确定的光级的灯具的位置。 该系统可以调整由灯具发出的光的光特性，使得由目标位置处的光传感器接收的光的颜色与目标光特性如颜色或强度相匹配。 系统可以确定多个目标位置的焦点位置和光特性。 该系统可以自动调试多个灯具。