公开(公告)号：US20090059202A1

公开(公告)日：2009-03-05

申请号：US12229783

申请日：2008-08-27

Applicant: Kunio Ueno

Inventor： Kunio Ueno

IPC: H01S3/10 ,  G01N33/49

CPC classification number: G01N15/1459 ,  G01N15/1434 ,  G01N2015/0073 ,  G01N2015/008 ,  G01N2015/0084 ,  G01N2201/0612 ,  G01N2201/0692 ,  G01N2201/0697 ,  H01S5/0427 ,  H01S5/0622 ,  H01S5/0652 ,  H01S5/0653 ,  H01S5/06832

Abstract: The present invention is to present a sample analyzer capable of automatically stabilizing the laser diode in multi-mode oscillation. A sample analyzer 1 comprises: a laser diode (LD) 501d for irradiating a sample with laser light; a photodiode (PD) 501e for detecting amount of light emitted from the LD 501d; a APC circuit 501b for outputting a direct current to be supplied to the LD 501d such that the amount of light emitted from the LD 501d is maintained at a predetermined amount, based on the amount of light detected by the PD 501e; a high frequency oscillation circuit 501f for superimposing a high frequency component on the direct current outputted from the APC circuit 501b; and a high frequency automatic adjustment circuit 501c for controlling amplitude of the high frequency component outputted from the high frequency oscillation circuit 501f according to magnitude of the direct current outputted from the APC circuit 501b such that the LD 501d oscillates in a multi-mode.

Abstract translation: 本发明是提供能够在多模式振荡中自动稳定激光二极管的样品分析装置。 样品分析仪1包括：用激光照射样品的激光二极管（LD）501d; 用于检测从LD 501d发射的光量的光电二极管（PD）501e; APC电路501b，用于输出要提供给LD 501d的直流电流，使得从LD 501d发射的光量基于由PD 501e检测到的光量保持在预定量; 用于将高频分量叠加在从APC电路501b输出的直流上的高频振荡电路501f; 以及高频自动调整电路501c，用于根据从APC电路501b输出的直流电流的大小来控制从高频振荡电路501f输出的高频分量的振幅，使得LD 501d以多模式振荡。

公开(公告)号：US4357105A

公开(公告)日：1982-11-02

申请号：US173801

申请日：1980-08-06

Applicant: Thomas J. Loretz

Inventor： Thomas J. Loretz

IPC: G01N21/31 ,  G01N21/25 ,  G01N21/35 ,  G01N33/48

CPC classification number: G01N21/314 ,  G01N2201/0692

Abstract: A compact, portable, clinical instrument dedicated to hemoglobin determination employs an L.E.D. light source with a peak output wavelength of about 553 nanometers and a yellow-blocking filter with a long wavelength cut-off not longer than about 565 nanometers. Thus, the relative amount of energy incident upon the blood sample in the 540 nm. hemoglobin absorption band is maximized. In addition to the L.E.D., the photodetector and the amplifying, inverting, log conversion, digital conversion, display and power supply regulation circuits are also exclusively solid-state. The display is of the reflective or liquid crystal type, and the power supply regulator is a sophisticated integrated circuit containing the equivalent of many discrete components. As a result, current consumption is minimized, and battery life and instrument accuracy are maximized. As an alternative illumination source, an infra-red L.E.D. can be employed, and the instrument is then capable of blood turbidity measurement. In either case, the L.E.D. illumination source is powered by a constant-current regulator, which minimizes errors due to fluctuations in illumination intensity.

Abstract translation: 专门用于血红蛋白测定的紧凑便携式临床仪器采用L.E.D. 具有约553纳米的峰值输出波长的光源和长波长截止值不大于约565纳米的黄色阻挡滤光器。 因此，在540nm处入射到血液样品上的能量的相对量。 血红蛋白吸收带最大化。 除了L.E.D.，光电检测器和放大，反相，对数转换，数字转换，显示和电源调节电路也是专门的固态。 显示器是反射型或液晶型，电源调节器是一种复杂的集成电路，其中包含许多分立元件。 因此，电流消耗最小化，电池寿命和仪器精度最大化。 作为替代照明源，红外线L.E.D. 可以使用，然后仪器能够进行血液浊度测量。 在任何一种情况下，L.E.D. 照明源由恒流调节器供电，这使得由于照明强度的波动而导致的误差最小化。

公开(公告)号：US20240133820A1

公开(公告)日：2024-04-25

申请号：US18479273

申请日：2023-10-01

Applicant: ARKRAY, Inc.

Inventor： Fumito HIRAMURA ,  Alexander TURNER

IPC: G01N21/84 ,  G06K7/10 ,  H04N23/74

CPC classification number: G01N21/8483 ,  G06K7/10861 ,  H04N23/74 ,  G01N2201/0221 ,  G01N2201/0692

Abstract: A measurement system including: an insertion gate into which a test strip including first and second regions is inserted; a holder accommodating the test strip; a housing including a window facing the test strip; and a smart device including an illuminator illuminating the second region and including a camera imaging the first and second regions, in which the housing includes a mounting part placing the smart device on an outer surface of the housing in a state in which the camera and the illuminator are disposed at positions facing the window, and a measurement light source provided at a position to irradiate the first region, and in a case in which the camera images the first region, the illuminator is turned off while the measurement light source is turned on, and in a case in which the camera images the second region, the illuminator is turned on.

公开(公告)号：US09877368B2

公开(公告)日：2018-01-23

申请号：US15015810

申请日：2016-02-04

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke Nagai ,  Keisuke Ogawa ,  Masato Watanabe ,  Kumiko Jingu ,  Masanori Fujiwara ,  Tomoyuki Yamazaki

IPC: H05B33/08 ,  G01N21/33

CPC classification number: H05B33/0851 ,  G01N21/33 ,  G01N2201/0621 ,  G01N2201/0638 ,  G01N2201/0692 ,  G01N2201/0695

Abstract: Provided is an optical analyzer for performing a feedback control on the amount of light emitted from an LED as a light source, in which the configuration of an optical system is made simple and the degree of freedom in optical system arrangement is secured. An optical member 2 for focusing most of light while discharging part of the light as unfocused light is provided on an optical path from a light casting unit 1 to a sample cell 3. The optical member 2 can be achieved with a simple configuration, for example, two ball lenses spaced apart by a predetermined distance from each other. The light focused by the optical member 2 is cast as measurement light into the sample cell 3. Meanwhile, a second photodetector 5 is arranged at a position where the unfocused light reaches. The second photodetector 5 generates a detection signal in accordance with the amount of light that has entered the second photodetector 5 as monitored light, and a drive current to be supplied to an LED is controlled through a drive current controlling unit 6 and a current source 7 such that the amount of light is maintained at a fixed level.

公开(公告)号：US09622301B2

公开(公告)日：2017-04-11

申请号：US14717739

申请日：2015-05-20

Applicant: Google Inc.

Inventor： Daniel Adam Warren ,  Ian C. Smith ,  Brian Jonathan Conner

IPC: G08B17/10 ,  H05B33/08 ,  G01N21/53 ,  G08B17/107

CPC classification number: H05B33/0815 ,  G01N21/53 ,  G01N2201/06153 ,  G01N2201/0692 ,  G08B5/36 ,  G08B17/107

Abstract: Systems and methods for driving optical sources operating at different wavelengths within a smoke sensor are described herein. Multiple optical sources such as light emitting diodes may be used in a photoelectric smoke sensor to detect particles of different sizes. Photoelectric smoke sensors can operate by pulsing the LEDs and measuring a response in a light sensor. The signal measured at the light sensor changes based on the quantity of particles existing in a smoke chamber. Each optical source may have different operational characteristics and thus require different drive currents to operate. LED driving circuitry according to embodiments discussed herein provide a consistent and reliable drive current to each optical source, while maximizing efficiency of power consumption across a range of possible voltages provided by different power sources.

公开(公告)号：US20130119277A1

公开(公告)日：2013-05-16

申请号：US13737279

申请日：2013-01-09

Applicant: Molecular Devices, LLC

Inventor： Josef J. Atzler ,  Bernhard Schinwald

IPC: G01N21/64

CPC classification number: G01N21/64 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0232 ,  G01J3/0235 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/10 ,  G01J3/427 ,  G01J3/4406 ,  G01N21/6408 ,  G01N21/6428 ,  G01N21/6445 ,  G01N21/645 ,  G01N21/763 ,  G01N2021/1738 ,  G01N2021/6415 ,  G01N2021/6419 ,  G01N2021/6441 ,  G01N2021/6482 ,  G01N2201/024 ,  G01N2201/0618 ,  G01N2201/062 ,  G01N2201/0621 ,  G01N2201/0692 ,  G01N2201/0696

Abstract: Systems and methods for measuring a target in a sample, the target being capable of generating an emitted light in response to an excitation light. In an example system, an excitation light source generates the excitation light along an excitation optical path. An attenuation filter arrangement selectively adds an attenuation filter to the excitation optical path. The attenuation filter attenuates the excitation light by a corresponding attenuation factor. The excitation light exits the attenuation filter arrangement along the excitation optical path to illuminate the sample. A light energy detector receives the emitted light generated in response to the excitation light, and outputs a measured signal level corresponding to an emitted light level. If the light energy detector indicates an overflow, signal measurement is repeated with attenuation filters of increasing attenuation factors until the measured signal level does not overflow.

Abstract translation: 用于测量样本中的目标的系统和方法，所述目标能够响应于激发光产生发射的光。 在示例性系统中，激发光源沿着激发光路产生激发光。 衰减滤波器装置选择性地将衰减滤波器添加到激励光路。 衰减滤波器通过相应的衰减因子衰减激发光。 激发光沿着激发光路离开衰减滤光器装置以照亮样品。 光能检测器接收响应于激发光产生的发射光，并且输出与发射的光级相对应的测量信号电平。 如果光能检测器指示溢出，则使用增加衰减因子的衰减滤波器重复信号测量，直到测量信号电平不会溢出。

公开(公告)号：US08119066B2

公开(公告)日：2012-02-21

申请号：US11351181

申请日：2006-02-08

Applicant: Daniel M. Stock ,  Josef J. Atzler

Inventor： Daniel M. Stock ,  Josef J. Atzler

IPC: G01N21/00

CPC classification number: G01N21/645 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0232 ,  G01J3/0235 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/10 ,  G01J3/427 ,  G01J3/4406 ,  G01N21/6408 ,  G01N21/6428 ,  G01N21/6445 ,  G01N21/763 ,  G01N2021/1738 ,  G01N2021/6415 ,  G01N2021/6419 ,  G01N2021/6441 ,  G01N2021/6482 ,  G01N2201/024 ,  G01N2201/0618 ,  G01N2201/062 ,  G01N2201/0621 ,  G01N2201/0692 ,  G01N2201/0696

Abstract: A cartridge and cartridge system for use in an apparatus for analyzing a sample are provided. The cartridge has one or more light sources and/or optical systems and other components that are specific for a certain type of application such as fluorescence, absorbance, or luminescence. The light source, optical systems, and other components for a specific application are housed in a single cartridge. The system has a plurality of cartridges for different applications for a multimode instrument. The cartridges are removably engaged with the apparatus in a “plug-in” format such that one cartridge may be removed from the apparatus and another cartridge may be easily installed.

Abstract translation: 提供了用于分析样品的装置中的盒和盒系统。 盒具有一个或多个光源和/或光学系统以及其它特定于某种类型的应用，如荧光，吸光度或发光的组件。 用于特定应用的光源，光学系统和其他部件容纳在单个盒中。 该系统具有用于多模仪器的不同应用的多个盒。 盒可以以“插入”格式可移除地与设备接合，使得一个盒可以从设备移除，并且另一个盒可以容易地安装。

公开(公告)号：US08113049B2

公开(公告)日：2012-02-14

申请号：US12439434

申请日：2007-05-08

Applicant: Remo Corghi

Inventor： Remo Corghi

IPC: G01M1/16

CPC classification number: G01N21/255 ,  G01B11/2522 ,  G01N21/85 ,  G01N2201/0221 ,  G01N2201/0224 ,  G01N2201/0618 ,  G01N2201/0692 ,  G01N2201/0694 ,  G01N2201/0696 ,  G06T7/521

Abstract: A method and a machine for balancing vehicle wheels with weights (18), the method comprising stages of: using a video camera (5, 6, 206) to frame a portion of a surface of a hub (101) of a wheel on which a weight (18) is to be applied, locating, in images of the hub (101) taken by the camera (5, 6, 206), at least a balancing plane (E1, E2) which is perpendicular to a rotation axis (A) of the wheel, piloting at least a pick-up device (8, 9, 209) such as to direct the at least a pick-up device (8, 9, 209) onto a point (P1, P2) of the hub (101) belonging to the balancing plane (E1, E2), detecting, by means of the pick-up device (8, 9, 209) characteristic geometric parameters of the hub (101) at the balancing plane (E1, E2), measuring an imbalance of the wheel, calculating, by means of an electronic calculator (4, 204) an entity of at least a weight (18) to be applied to the hub (101) at the balancing plane (E1, E2), and also calculating an angular position (T1, T2) of the weight (18) in the balancing plane (E1, E2).

Abstract translation: 一种用于平衡车轮与重物（18）的方法和机器，所述方法包括以下步骤：使用摄像机（5,6,206）来构成车轮的轮毂（101）的表面的一部分，其中轮 将重量（18）应用于定位在由照相机（5,60）取下的轮毂（101）的图像中，至少一个垂直于旋转轴线的平衡面（E1，E2） A），至少引导拾取装置（8,9,209），以将至少一个拾取装置（8,9,209）引导到所述至少一个拾取装置（1）的点（P1，P2）上， 通过所述拾取装置（8,9,209）检测所述轮毂（101）在所述平衡面（E1，E2）处的特征几何参数，所述轮毂（101）属于所述平衡平面（E1，E2） 测量车轮的不平衡，借助于电子计算器（4,204）计算要在平衡平面（E1，E2）处施加到轮毂（101）的至少一个重量（18）的实体， 并计算重量（18）在t中的角位置（T1，T2） 他平衡平面（E1，E2）。

公开(公告)号：US20080225273A1

公开(公告)日：2008-09-18

申请号：US12066816

申请日：2006-11-28

Applicant: Oleg Ershov ,  Alexey Klimov

Inventor： Oleg Ershov ,  Alexey Klimov

IPC: G01N21/00

CPC classification number: G01N33/0047 ,  G01N21/39 ,  G01N2021/1789 ,  G01N2021/1793 ,  G01N2021/399 ,  G01N2201/0612 ,  G01N2201/0692 ,  G01N2201/1211

Abstract: Apparatus for remote laser-based detection of a analyte in a remote target region; comprising a reference container for housing a reference substance identical with the analyte; a laser unit which constituted to emit a laser beam of a tuneable wavelength towards the target region to be analysed and along a reference path which passes through the reference container for detecting the reference substance; a laser control means constituted to control wavelength of the laser beam during detection periods such that the laser wavelength is changed to allow detection of an optical absorption profile of the analyte during detection periods; an analytical detection unit which detects light from the target region and generates analytical signals during the detection periods, a reference detection unit which detects laser light passed through the reference container and generates reference signals during the detection periods; and an analysing means constituted to analyse the similarity of the analytical and reference signals or of one or more calculated functions respectively calculated from the analytical and reference signals for determining the concentration of the analyte in the target region.

Abstract translation: 用于远程目标区域中的分析物的远程基于激光的检测装置; 包括用于容纳与分析物相同的参考物质的参考容器; 激光单元，其被构造成向待分析的目标区域发射可调波长的激光束，并且沿着参考路径穿过用于检测参考物质的参考容器; 激光控制装置，被构造成在检测周期期间控制激光束的波长，使得激光波长被改变以允许在检测周期期间检测分析物的光吸收曲线; 分析检测单元，其检测来自所述目标区域的光并在所述检测周期期间产生分析信号;参考检测单元，其检测通过所述参考容器的激光并在所述检测周期期间产生参考信号; 以及分析装置，用于分析分析和参考信号或从分析和参考信号分别计算的一个或多个计算函数的相似性，以确定目标区域中的分析物的浓度。

公开(公告)号：US07291851B2

公开(公告)日：2007-11-06

申请号：US11149881

申请日：2005-06-10

Applicant: John R DelFavero ,  Anthony T Pierry

Inventor： John R DelFavero ,  Anthony T Pierry

IPC: G01N21/61 ,  H01K1/02

CPC classification number: G01N21/274 ,  G01J3/10 ,  G01J5/0896 ,  G01N21/3504 ,  G01N2201/0692

Abstract: A method of modulating an infrared radiation (IR) source that includes applying a time-varying, periodic voltage signal to the IR source, measuring a parameter of the voltage signal, and adjusting the voltage signal to maintain a substantially constant delivered power to the IR source. Adjusting the voltage signal is done based on the measured parameter and a predetermined relationship between the measured parameter of the voltage pulse and a resistance of such an infrared radiation source. Alternatively, the method includes applying a the voltage pulse, measuring a first parameter of the voltage pulse and a second parameter of a current passing through the infrared radiation source resulting from the applying step, and adjusting the voltage pulse to maintain a substantially constant delivered power to the infrared radiation source based on the first parameter and the second parameter.

Abstract translation: 一种调制红外辐射源（IR）源的方法，包括向IR源施加时变周期性电压信号，测量电压信号的参数，以及调整电压信号以维持基本上恒定的输送功率到IR 资源。 基于测量的参数和电压脉冲的测量参数与这种红外辐射源的电阻之间的预定关系来调节电压信号。 或者，该方法包括施加电压脉冲，测量电压脉冲的第一参数和通过施加步骤产生的通过红外辐射源的电流的第二参数，以及调整电压脉冲以维持基本上恒定的输送功率 基于第一参数和第二参数对红外线辐射源。