公开(公告)号：US20130037692A1

公开(公告)日：2013-02-14

申请号：US13484559

申请日：2012-05-31

Applicant: Tomoyuki AKIYAMA

Inventor： Tomoyuki AKIYAMA

IPC: G01J1/18

CPC classification number: G02F1/0115 ,  G02F1/0147 ,  G02F2203/15

Abstract: An optical semiconductor device includes a waveguide that an input light to be inputted, a ring modulator optically coupled with the waveguide, a first ring resonator optically coupled with the waveguide and having an optical path length smaller than an optical path length of the ring modulator, a second ring resonator optically coupled with the first waveguide and having an optical path length larger than the optical path length of the ring modulator, a heater arranged adjacent to the ring modulator, the first ring resonator and the second ring resonator, a first photodetector monitoring a light power in the first ring resonator, a second photodetector monitoring a light power in the second ring resonator, and a controller controlling the heater so that a resonance wavelength of the ring modulator agrees with a wavelength of the input light, based on signals detected by the first and second photodetectors.

Abstract translation: 一种光学半导体器件包括波导，输入光，波导光耦合的环形调制器，与波导光耦合并具有小于环形调制器的光程长度的光程长度的第一环形谐振器， 与所述第一波导光学耦合并且具有大于所述环形调制器的光路长度的光路长度的第二环形谐振器，与所述环形调制器相邻布置的加热器，所述第一环形谐振器和所述第二环形谐振器，第一光电探测器监视 第一环形谐振器中的光功率，监测第二环形谐振器中的光功率的第二光电检测器和控制加热器的控制器，使得环形调制器的谐振波长基于检测到的信号与输入光的波长一致 通过第一和第二光电检测器。

公开(公告)号：US20120256081A1

公开(公告)日：2012-10-11

申请号：US13412462

申请日：2012-03-05

Applicant: Yukio TSUNETSUGU

Inventor： Yukio TSUNETSUGU

IPC: G01J1/18

CPC classification number: H03K17/78 ,  G01J1/18 ,  G01J1/44 ,  H03K5/2481

Abstract: According to a receiving circuit includes a light receiving element, a signal voltage generation portion, a comparator, a reference voltage generation portion and a switch. The light receiving element receives a light signal and outputs a light current corresponding to the light signal. The signal voltage generation portion converts the light current into a signal voltage and outputs the signal voltage. The comparator compares the signal voltage with a first threshold value or a second threshold value. The reference voltage generation portion outputs a reference voltage input to the comparator. The switch changes the reference voltage to one of the first threshold value and the second threshold value based on an output of the comparator.

Abstract translation: 根据接收电路包括光接收元件，信号电压产生部分，比较器，参考电压产生部分和开关。 光接收元件接收光信号并输出​​与光信号对应的光电流。 信号电压产生部分将光电流转换为信号电压并输出信号电压。 比较器将信号电压与第一阈值或第二阈值进行比较。 参考电压产生部分输出输入到比较器的参考电压。 该开关基于比较器的输出将参考电压改变为第一阈值和第二阈值之一。

公开(公告)号：US20110231130A1

公开(公告)日：2011-09-22

申请号：US12985734

申请日：2011-01-06

Applicant: Sungho Hong ,  Jang Gu Oh ,  Tae Young Choi ,  Jong Tae Park

Inventor： Sungho Hong ,  Jang Gu Oh ,  Tae Young Choi ,  Jong Tae Park

IPC: G06F19/00 ,  G01J1/18 ,  G01J1/42

CPC classification number: G01J1/4257 ,  G01J1/0223 ,  G01J1/42 ,  G01J2001/4247 ,  G01R31/2635 ,  G01R31/44

Abstract: Disclosed is an apparatus for testing an LED lamp which includes: a secured seat on which the LED lamp is seated; an up and down shifter which, when the LED lamp is seated on the secured seat, shifts from an initial position spaced upward from the LED lamp to a measurement position in which the up and down shifter contacts with a socket of the LED lamp, and which supplies electric power to the LED lamp when the up and down shifter is placed in the measurement position, and a sensor sensing that the up and down shifter is placed in the measurement position; and a quality determining means determining a quality of the LED lamp based on light emitted from the LED lamp, and comprising an illuminometer or a luminance meter.

Abstract translation: 公开了一种用于测试LED灯的装置，其包括：固定座，LED灯就座在其上; 一个上下移动器，当LED灯位于固定的座椅上时，从从LED灯向上间隔的初始位置移动到上下移位器与LED灯的插座接触的测量位置，以及 当向上和向下移位器置于测量位置时，其向LED灯提供电力;以及传感器，其将上下移动器置于测量位置; 以及质量确定装置，其基于从所述LED灯发出的光来确定所述LED灯的质量，并且包括照度计或亮度计。

公开(公告)号：US20100157290A1

公开(公告)日：2010-06-24

申请号：US12642509

申请日：2009-12-18

Applicant: Kazunori Osako ,  Takayoshi Takahara

Inventor： Kazunori Osako ,  Takayoshi Takahara

IPC: G01J1/18 ,  G01J1/44

CPC classification number: G01V8/20

Abstract: This invention enables a worker, who performs a work for optical axis adjustment, to easily grasp whether adjustment for further increasing the light receiving quantity is possible. In a multi-optical axis photoelectronic sensor, a minimum value of the light receiving quantities obtained for every optical axis is detected every time a process of measuring, while lighting each light emitting element 10 by turns, the light receiving quantity of a light receiving element corresponding to a lighted light emitting element 10 is repeated for one cycle, and a peak value of the minimum light receiving quantities detected in the past is detected. A bar graph based on specific values of the most recent minimum light receiving quantity and the peak value, or a bar graph showing a proportion of the most recent minimum light receiving quantity with respect to the peak value is displayed using a plurality of indication lights 100, each arranged on the front surfaces of a light projector 1 and a light receiver 2. The bar graph changes according to the update of the peak value and the fluctuation in the value of the minimum light receiving quantity of every hour.

Abstract translation: 本发明使得进行光轴调整工作的工人能够容易地掌握是否可以进一步增加光接收量的调节。 在多光轴光电传感器中，每次发光处理的过程中每个光轴获得的光接收量的最小值在每个发光元件10点亮的同时检测光接收元件的光接收量 对应于点亮的发光元件10重复一个周期，并且检测过去检测到的最小光接收量的峰值。 使用多个指示灯100显示基于最近的最小光接收量和峰值的特定值的条形图或示出最近最小光接收量相对于峰值的比例的条形图 每个布置在投光器1和光接收器2的前表面上。条形图根据峰值的更新和每小时的最小光接收量的值的波动而改变。

公开(公告)号：US07605359B2

公开(公告)日：2009-10-20

申请号：US11901212

申请日：2007-09-14

Applicant: Tiejun Dai ,  Jingzhou Zhang ,  Liping Deng

Inventor： Tiejun Dai ,  Jingzhou Zhang ,  Liping Deng

IPC: H01J40/14 ,  G01J1/18

CPC classification number: H04N5/2357 ,  H04N5/144 ,  H04N7/0132 ,  H04N17/002

Abstract: An apparatus for measuring the power frequency of a light source includes a photo-sensor, a modulator, and a logic unit. The photo-sensor generates an electrical signal that is responsive to light incident thereon from the light source. The modulator generates a modulated signal based on the electrical signal that toggles at a rate substantially proportional to the power frequency of the light source. The logic unit is coupled to receive the modulated signal and determine its toggling frequency.

公开(公告)号：US06870618B2

公开(公告)日：2005-03-22

申请号：US10311121

申请日：2002-04-26

Applicant: Takashi Sugimoto ,  Hiroaki Ohtateme

Inventor： Takashi Sugimoto ,  Hiroaki Ohtateme

IPC: G01J1/18 ,  G01J3/06 ,  G01J3/12 ,  G01M11/00 ,  G01J3/28

CPC classification number: G01M11/00 ,  G01J1/18 ,  G01J3/027 ,  G01J3/06 ,  G01J3/12

Abstract: A wavelength variable light source emits a light whose wavelengths continuously change from a preset start wavelength up to a stop wavelength to a measuring object. A timing information output section generates timing information showing emission timings of lights emitted from the wavelength variable light source and having start and stop wavelengths and a plurality of wavelengths obtained by delimiting the wavelengths between the start and stop wavelengths in predetermined steps. A light receiving section receives the light output from the measuring object and outputs a signal showing a measured value of a received light. A plurality of amplifiers receive the signal output from the light receiving section and amplify the signal at each predetermined amplification factor. A signal selecting section selects one signal kept in a predetermined measuring range of signals amplified by the plurality of amplifiers at the each predetermined amplification factor and outputs the one signal as a measured value of a light of a wavelength decided in accordance with corresponding timing information in the information output from the timing information output section.

Abstract translation: 波长可变光源发射其波长从预设开始波长连续地变化到停止波长的光到测量对象。 定时信息输出部分产生定时信息，其显示从波长可变光源发射的光的发射定时，并且具有通过以预定步骤限定起始和停止波长之间的波长而获得的起始和停止波长和多个波长。 光接收部接收从测量对象输出的光，并输出表示接收光的测量值的信号。 多个放大器接收从光接收部输出的信号，并以每个预定的放大系数放大信号。 信号选择部以每个规定的放大率选择保持在由多个放大器放大的信号的预定测量范围内的一个信号，并输出该一个信号作为根据相应定时信息确定的波长的光的测量值 从定时信息输出部输出的信息。

公开(公告)号：US5517302A

公开(公告)日：1996-05-14

申请号：US231445

申请日：1994-04-20

Applicant: Thornton Stearns ,  Subhash C. Sarkar

Inventor： Thornton Stearns ,  Subhash C. Sarkar

IPC: G01J1/18 ,  G01J1/44 ,  G01J3/02 ,  G01J3/18 ,  G01J3/42 ,  G01N21/47 ,  G01J3/28

CPC classification number: G01N21/474 ,  G01J3/42 ,  G01J2001/182 ,  G01J2001/444 ,  G01J2003/421 ,  G01J2003/425 ,  G01J3/0221 ,  G01J3/1838 ,  G01N2021/4742

Abstract: A reflectometer for measuring absorption of light in selected regions of the light spectrum by a diffuse reflector. The reflectometer is adapted to precisely measure absorption resulting from the constituents present in body fluids. The sample to be measured is illuminated by a focussed light source at an angle of 45.degree. to its surface. The light diffusely reflected about the normal to the sample falls on a small round bundle of optical fibers. At the opposite end of the bundle, the fibers are arranged into a narrow rectangle. This rectangle forms the entrance slit for a concave holographic diffraction grating. The grating forms images of this entrance slit spectrally separated over a flat field suitable for recording the spectrum on film or on an array of discrete detectors.

Abstract translation: 用于通过漫反射器测量光谱的选定区域中的光的吸收的反射计。 反射计适用于精确测量由体液中存在的成分引起的吸收。 要测量的样品被聚焦光源以与其表面成45度的角度照射。 围绕样品的法线漫反射的光落在小圆形光纤束上。 在束的另一端，纤维被布置成窄的矩形。 该矩形形成凹面全息衍射光栅的入口狭缝。 光栅形成在适合于在胶片上或在离散检测器阵列上记录光谱的平坦场上光谱分离的入口狭缝的图像。

公开(公告)号：US5321261A

公开(公告)日：1994-06-14

申请号：US943398

申请日：1992-09-10

Applicant: Robert J. Valenta

Inventor： Robert J. Valenta

IPC: G01J1/08 ,  G01J1/18 ,  G01N21/76 ,  G01T1/40 ,  G01T7/00

CPC classification number: G01T1/40 ,  G01J1/08 ,  G01J1/18 ,  G01N21/76 ,  G01T7/00

Abstract: A normalization system for multi-photodetector single photon counting luminescent measuring systems and a standard for use in the same. The method comprises calculating one or more counting ratios for each photodetector in the single photon counting system and multiplying counts of unknown samples by the inverse of the appropriate counting ratio. A counting ratio for a particular photodetector is calculated by dividing the count of a standard measured by the photodetector by the count of the same standard measured by a reference photodetector. The particular standard developed employs calcium tungstate:lead as a scintillator and tritium or carbon-14 thymidine as a means of exciting the scintillator. This standard has the advantages of providing a good model of typical luminescence chemistry and producing an emission pattern which is susceptible to single photon counting.

Abstract translation: 用于多光电探测器单光子计数发光测量系统的标准化系统及其使用的标准。 该方法包括计算单个光子计数系统中每个光电探测器的一个或多个计数比，并将未知样本的计数乘以适当计数比的倒数。 通过将由光电检测器测量的标准的计数除以由参考光电检测器测量的相同标准的计数来计算特定光电检测器的计数比。 开发的特定标准是使用钨酸钙：铅作为闪烁体，氚或碳-14胸苷作为激发闪烁体的手段。 该标准具有提供典型发光化学的良好模型并产生易受单光子计数影响的发射图案的优点。

公开(公告)号：US5262840A

公开(公告)日：1993-11-16

申请号：US781

申请日：1993-01-04

Applicant: Thornton Stearns ,  Subhash C. Sarkar

Inventor： Thornton Stearns ,  Subhash C. Sarkar

IPC: G01J1/18 ,  G01J1/44 ,  G01J3/02 ,  G01J3/18 ,  G01J3/42 ,  G01N21/47 ,  G01J3/04

CPC classification number: G01J3/42 ,  G01N21/474 ,  G01J2001/182 ,  G01J2001/444 ,  G01J2003/421 ,  G01J2003/425 ,  G01J3/0221 ,  G01J3/1838 ,  G01N2021/4742

Abstract: A reflectometer for measuring absorption of light in selected regions of the light spectrum by a diffuse reflector. The reflectometer is adapted to precisely measure absorption resulting from the constituents present in body fluids. The sample to be measured is illuminated by a focused light source at an angle of 45.degree. to its surface. The light diffusely reflected about the normal to the sample falls on a small round bundle of optical fibers at the opposite end of the bundle, the fibers are arranged into a narrow rectangle. This rectangle forms the entrance slit for a concave holographic diffraction grating. The grating forms images of this entrance slit spectrally separated over a flat field suitable for recording the spectrum on film or on an array of discrete detectors.

Abstract translation: 用于通过漫反射器测量光谱的选定区域中的光的吸收的反射计。 反射计适用于精确测量由体液中存在的成分引起的吸收。 要测量的样品被聚焦光源以与其表面成45度的角度照射。 围绕样品的法线漫反射的光落在束的相对端的小圆形光纤束上，纤维被排列成窄的矩形。 该矩形形成凹面全息衍射光栅的入口狭缝。 光栅形成在适合于在胶片上或在离散检测器阵列上记录光谱的平坦场上光谱分离的入口狭缝的图像。

公开(公告)号：US5248880A

公开(公告)日：1993-09-28

申请号：US814372

申请日：1991-12-26

Applicant: John D. Fergason

Inventor： John D. Fergason

IPC: A61F9/06 ,  G01J1/02 ,  G01J1/04 ,  G01J1/18 ,  G01J1/44 ,  G02F1/133

CPC classification number: A61F9/067 ,  A61F9/061 ,  G01J1/04 ,  G01J1/044 ,  G01J1/18 ,  G01J1/4204 ,  G01J1/44 ,  G02F1/13306 ,  G02F1/13318 ,  G01J2001/0276

Abstract: A sensor circuit for detecting light hazards or bright light sources that will cause discomfort. The sensor and sensor electronics which provide a wide sensitivity range which is fully automatically adjustable, and which has the ability to detect point sources of light. The sensor further has the ability to distinguish low power stable light generated from a small welding arc from bright ambient light or even direct sunlight.

Abstract translation: 用于检测会引起不适的光危害或明亮光源的传感器电路。 传感器和传感器电子设备提供了广泛的灵敏度范围，可以完全自动调节，并具有检测点光源的能力。 传感器还具有区分由小的焊接电弧产生的低功率稳定光与明亮的环境光或甚至直射的阳光。