公开(公告)号：US20190250392A1

公开(公告)日：2019-08-15

申请号：US16343229

申请日：2016-10-25

Applicant: LYNCEE TEC SA

Inventor： Etienne CUCHE ,  Yves EMERY

IPC: G02B21/14 ,  G03H1/04 ,  G03H1/00 ,  G02B27/14 ,  G01N21/45

CPC classification number: G02B21/14 ,  G01B9/02007 ,  G01B9/02028 ,  G01B9/02091 ,  G01B2290/70 ,  G01N21/453 ,  G01N2021/4186 ,  G01N2021/458 ,  G01N2201/082 ,  G01N2201/0846 ,  G02B21/06 ,  G02B27/10 ,  G02B27/14 ,  G03H1/0005 ,  G03H1/041 ,  G03H1/0443 ,  G03H1/0465 ,  G03H2001/005 ,  G03H2001/0452 ,  G03H2001/0456 ,  G03H2001/0469 ,  G03H2001/0471 ,  G03H2223/16 ,  G03H2223/24 ,  G03H2223/26

Abstract: An optical fiber splitter device comprising at least two optical fibers of different lengths is disclosed for partial or complete compensation of the optical path difference between waves interfering to generate a hologram or an interferogram. Various implementations of this fiber splitter device are described in apparatuses for holographic and interferometric imaging of microscopic and larger samples.

公开(公告)号：US09372150B2

公开(公告)日：2016-06-21

申请号：US15005375

申请日：2016-01-25

Applicant: INSTITUT NATIONAL D'OPTIQUE

Inventor： François Babin

IPC: G01N21/00 ,  G01N21/25 ,  G01N21/27

CPC classification number: G01N21/255 ,  G01N21/27 ,  G01N21/274 ,  G01N21/65 ,  G01N21/7703 ,  G01N21/78 ,  G01N21/80 ,  G01N2021/7709 ,  G01N2021/772 ,  G01N2021/7793 ,  G01N2201/0612 ,  G01N2201/082 ,  G01N2201/0826 ,  G01N2201/0833 ,  G01N2201/084 ,  G01N2201/088

Abstract: An optical system for sensing an environmental parameter, comprising: an optical pulse generator for generating an excitation pulse; a pulse splitter for splitting the excitation pulse into a sensing pulse and a reference pulse; a sensing arm for receiving the sensing pulse, the sensing arm comprising an emission sensor for sensing the environmental parameter, the optical emission sensor generating a first measurement pulse having a measurement wavelength; a reference arm for receiving the reference pulse, the reference arm comprising an emission artifact adapted to convert the reference pulse into a second measurement pulse having the measurement wavelength; a time delay line for delaying a relative propagation of the measurement pulses; a light detector for measuring an optical energy of the first and second measurement pulses; and an optical link for optically connecting the pulse generator to the pulse splitter, and the sensing and reference arms to the light detector.

Abstract translation: 一种用于感测环境参数的光学系统，包括：用于产生激励脉冲的光脉冲发生器; 用于将激励脉冲分成感测脉冲和参考脉冲的脉冲分离器; 用于接收感测脉冲的感测臂，所述感测臂包括用于感测所述环境参数的发射传感器，所述光发射传感器产生具有测量波长的第一测量脉冲; 用于接收参考脉冲的参考臂，所述参考臂包括适于将所述参考脉冲转换成具有所述测量波长的第二测量脉冲的发射伪影; 用于延迟测量脉冲的相对传播的延时线; 用于测量第一和第二测量脉冲的光能的光检测器; 以及用于将脉冲发生器光学连接到脉冲分离器的光学链路，以及用于光检测器的感测和参考臂。

公开(公告)号：US09244002B1

公开(公告)日：2016-01-26

申请号：US14449511

申请日：2014-08-01

Applicant: INSTITUT NATIONAL D'OPTIQUE

Inventor： Francois Babin

IPC: G01N21/00 ,  G01N21/27 ,  G01N21/25

CPC classification number: G01N21/274 ,  G01N21/7703 ,  G01N21/78 ,  G01N21/80 ,  G01N2021/7709 ,  G01N2021/772 ,  G01N2021/7793 ,  G01N2201/0612 ,  G01N2201/082 ,  G01N2201/0826 ,  G01N2201/084 ,  G01N2201/088

Abstract: An optical system for sensing an environmental parameter, comprising: a pulse generator for generating a first pulse having a first wavelength and a second pulse having a second wavelength; a pulse splitter for splitting each one of the first and second pulse into a sensing pulse and a reference pulse; a sensing arm for receiving the sensing pulses therefrom and comprising a spectro-ratiometric sensor; a reference arm for receiving the reference pulses; a time delay line for delaying a relative propagation of the sensing pulses and the reference pulses; a light detector for measuring an optical energy of the sensing pulse and the reference pulse, for the first and second wavelengths; and at least one optical link for optically connecting the pulse generator to the pulse splitter, and the sensing and reference arms to the light detector.

Abstract translation: 一种用于感测环境参数的光学系统，包括：脉冲发生器，用于产生具有第一波长的第一脉冲和具有第二波长的第二脉冲; 用于将第一和第二脉冲中的每一个分成感测脉冲和参考脉冲的脉冲分离器; 用于从其接收感测脉冲并包括光谱比例传感器的感测臂; 用于接收参考脉冲的参考臂; 用于延迟感测脉冲和参考脉冲的相对传播的延时线; 光检测器，用于测量第一和第二波长的感测脉冲和参考脉冲的光能; 以及用于将脉冲发生器光学地连接到脉冲分离器的至少一个光学链路，以及用于光检测器的感测和参考臂。

公开(公告)号：US07511818B2

公开(公告)日：2009-03-31

申请号：US11280546

申请日：2005-11-15

Applicant: Josep Pagés Pinyol

Inventor： Josep Pagés Pinyol

IPC: G01N21/00

CPC classification number: G01J3/02 ,  G01J3/0213 ,  G01J3/0218 ,  G01J3/12 ,  G01J3/2803 ,  G01N21/03 ,  G01N21/13 ,  G01N21/253 ,  G01N21/272 ,  G01N21/274 ,  G01N2201/0461 ,  G01N2201/082 ,  G01N2201/0826 ,  G01N2201/0833

Abstract: Apparatus for measuring the optical absorbency of samples of liquids, method and reaction container for its implementation.The apparatus comprises a receiving body for receiving the reaction containers carrying the samples to be analyzed, with means for causing each of the reaction containers to be passed through by a luminous signal of controlled wavelength, having means for conducting it to a scanning head where the luminous signals are picked up by a single CCD sensor, constituting a digital processing system for evaluating the absorbency of the corresponding sample.

Abstract translation: 用于测量液体样品，方法和反应容器的光学吸收性的装置，用于实施。 该装置包括用于接收携带待分析样品的反应容器的接收体，具有使每个反应容器通过受控波长的发光信号通过的装置，具有将其传导到扫描头的装置， 发光信号由单个CCD传感器拾取，构成用于评估相应样品的吸收性的数字处理系统。

公开(公告)号：US5241367A

公开(公告)日：1993-08-31

申请号：US730780

申请日：1991-07-24

Applicant: Ferdinand Grob ,  Hubert Dettling ,  Heinz Stutzenberger ,  Roger Potschin

Inventor： Ferdinand Grob ,  Hubert Dettling ,  Heinz Stutzenberger ,  Roger Potschin

IPC: G01N21/31 ,  G01N21/03 ,  G01N21/53 ,  G01N21/59

CPC classification number: G01N21/534 ,  G01N2021/0314 ,  G01N2201/082 ,  G01N2201/084

Abstract: A device is proposed for measuring the composition of fluids, in particular of constituents of exhaust gases from internal combustion engines, in which a light ray (32, 31) is used to irradiate the exhaust gas to be measured over the length of a measuring section (29) and is weakened or changed more or less, depending on the content of constituents. The light signal being received is advantageously registered by a measured length light receiver (18) which is shielded light-tight against the light emitting light source (14) and is evaluated in relation to the original light emission, in an evaluation circuit (26). In this simple way, accurate information is obtained of the exhaust gas clouding and of the loading of a fluid or gas with constituents which are optically active.

Abstract translation: PCT No.PCT / DE91 / 00026 Sec。 371日期1991年7月24日 102（e）1991年7月24日PCT 1991年1月17日PCT PCT。 公开号WO91 / 11702 日期为1991年8月8日。提出了一种装置，用于测量流体的组成，特别是用于内燃机排气成分的组成，其中使用光线（32,31）照射被测废气 在测量部分（29）的长度上，根据组分的含量，它们或多或少变弱或变化。 所接收的光信号有利地由测量长度的光接收器（18）记录，该测量长度光接收器（18）在评估电路（26）中对发光光源（14）进行屏蔽并相对于原始光发射进行评估， 。 以这种简单的方式，可以获得准确的信息，了解排气气体的混浊以及流体或气体与具有光学活性的成分的负载。

公开(公告)号：US5239175A

公开(公告)日：1993-08-24

申请号：US828814

申请日：1992-01-29

Applicant: Sajad M. Jawad ,  John F. Alder

Inventor： Sajad M. Jawad ,  John F. Alder

IPC: G01J1/16 ,  G01J1/44 ,  G01N21/25 ,  G01N21/27 ,  G01N21/78

CPC classification number: G01N21/255 ,  G01N21/274 ,  G01N21/783 ,  G01J2001/1636 ,  G01J2001/444 ,  G01J2001/446 ,  G01N2201/0695 ,  G01N2201/082 ,  G01N2201/12753

Abstract: Color changes in a target, such as a chemical sensor using a colorchanging indicator reagent to detect the presence of a poisonous gas, are continuously monitored by reflecting the target (10) on to a sensor (16) light originating from first one and then another light source (12a, 12b, etc), each having a different, known emission wavelength. In each cycle, direct light from the appropriate source is also collected by another sensor (14), connected in a closed loop (26) with circuitry in which the emission intensity is compared with a known reference value (38) and which adjusts the emission intensity so as to stabilize it at this constant reference value. Once this is stabilized, the reflected light intensity signal is passed to a data store (20), after which a divider (22) produces an output signal (36) representing the ratio of the reflected light intensities in two separate cycles originating from two different light sources (12a, 12b, etc). The conduct of each cycle is controlled by timing means (18). Where there are two light sources, the wavelength of the second (12b) is outside the response range of the target, that of the first (12a) being at or near the peak target response, so that all the divider output signals represent successive values of actual reflected light intensity. These signals can be processed to show the rate of color change in the target and used to operate e.g. an alarm.

Abstract translation: PCT No.PCT / GB90 / 00924 Sec。 371日期1992年1月29日 102（e）日期1992年1月29日PCT提交1990年6月15日PCT公布。 出版物WO90 / 15972 日期为1990年12月27日。通过将目标（10）反射到传感器（16）的光上来连续监视目标物中的颜色变化，例如使用变色指示剂的化学传感器来检测有毒气体的存在 源自第一个和另一个光源（12a，12b等），每个具有不同的已知发射波长。 在每个周期中，来自适当源的直射光也被另一传感器（14）收集，该传感器连接在闭环（26）中，其中发射强度与已知参考值（38）进行比较，并且调节发射 强度以便将其稳定在该恒定的参考值。 一旦稳定，反射光强度信号被传递到数据存储器（20），之后分频器（22）产生一个输出信号（36），该输出信号表示来自两个不同的两个不同周期的反射光强度的比率 光源（12a，12b等）。 每个周期的行为由定时装置（18）控制。 在存在两个光源的地方，第二（12b）的波长在目标的响应范围之外，第一（12a）的波长处于或接近峰值目标响应，使得所有分频器输出信号表示连续的值 的实际反射光强度。 可以处理这些信号以显示目标中颜色变化的速率，并用于操作。 一个闹钟

公开(公告)号：US5009064A

公开(公告)日：1991-04-23

申请号：US424463

申请日：1989-10-20

Applicant: Ferdinand Grob ,  Dieter Kienzler ,  Ernst Linder ,  Roger Potschin ,  Heinz Stutzenberger

Inventor： Ferdinand Grob ,  Dieter Kienzler ,  Ernst Linder ,  Roger Potschin ,  Heinz Stutzenberger

IPC: G01N21/03 ,  G01N21/15 ,  G01N21/53

CPC classification number: G01N21/534 ,  G01N2021/0314 ,  G01N2021/151 ,  G01N21/15 ,  G01N2201/082

Abstract: An apparatus for measuring particulate matter in a flue gas or exhaust gas of a combustion process comprising means for transmitting a beam of light between an optical transmitter and an optical receiver. The light passes through two diametrically opposed light slits closed by transparent bodies in the wall of the tail pipe and crosses through a flow of exhaust gas carried in the tail pipe. The attenuation of intensity of the light beam is a measure of the particulate matter. When the measuring apparatus is used to measure a soot concentration in an exhaust gas of internal combustion engines of a vehicle, it is mounted directly on the tail pipe, and the transparent bodies are heated in the vicinity of the faces acted upon by the exhaust gas flow to a temperature above the soot burn-off temperature. As a result, adulteration of the measured value by soot deposits in the measurement path to the transparent bodies is prevented, and continuous operation of the measuring apparatus is assured.

Abstract translation: 一种用于测量燃烧过程的烟道气或废气中的颗粒物质的装置，包括用于在光发射器和光接收器之间传输光束的装置。 光通过在尾管的壁上由透明体封闭的两个直径相对的光狭缝，并穿过尾管中携带的废气流。 光束强度的衰减是粒子物质的量度。 当测量装置用于测量车辆内燃机的排气中的烟灰浓度时，其直接安装在尾管上，并且透明体在被废气作用的面附近被加热 流入高于烟炱燃烧温度的温度。 结果，防止了通过测量路径中的烟灰沉积物将测量值掺杂到透明体，并且确保了测量装置的连续操作。

公开(公告)号：US4945250A

公开(公告)日：1990-07-31

申请号：US378649

申请日：1989-07-12

Applicant: Mark S. Bowen ,  Stephen D. Fantone ,  Bruce E. Miller

Inventor： Mark S. Bowen ,  Stephen D. Fantone ,  Bruce E. Miller

IPC: G01N21/64 ,  G01N33/536

CPC classification number: G01N21/645 ,  G01N2021/6471 ,  G01N2201/0638 ,  G01N2201/082

Abstract: A low cost optical system which incorporates a low ultraviolet output tungsten halogen light source and solid state photodetectors and circuitry in such a way as to provide reliable fluorometric test results. The attainment of reliable results using such components is made possible by incorporating highly ultraviolet transmissive optics to maximize ultraviolet light throughput and by using solid state circuitry together with a filter wheel having both light blocking and light passing regions in a manner which fully accounts for noise and dark signals associated with solid state photodetectors.

Abstract translation: 一种低成本的光学系统，其结合了低紫外线输出钨卤素光源和固态光电检测器和电路，以提供可靠的荧光测试结果。 通过结合高度紫外线透射的光学器件来最大程度地提高紫外线光通量，并且通过使用固态电路与具有遮光和光通过区域的滤光轮以完全考虑噪声的方式并使其成为可靠的结果， 与固体光电探测器相关的暗信号。

公开(公告)号：US4802768A

公开(公告)日：1989-02-07

申请号：US850944

申请日：1986-04-11

Applicant: Charles R. Gifford ,  Achille M. Bigliardi

Inventor： Charles R. Gifford ,  Achille M. Bigliardi

IPC: G01N21/25 ,  G01N21/64 ,  G01N21/05

CPC classification number: G01N21/645 ,  G01N21/255 ,  G01N2021/6482 ,  G01N21/6428 ,  G01N2201/064 ,  G01N2201/0696 ,  G01N2201/0698 ,  G01N2201/082

Abstract: A reference system utilizes pulsed arc light excitation which excitation pulses are directed onto a flow cell containing a fluorescent dye. Fluorescent light emitted from the dye is guided to a photomultiplier tube which converts it to electrical pulses. A portion of each excitation light pulse is guided by a light pipe onto a PIN diode light detector which converts these light signals to electrical pulses. A LED reference light source is pulsed to generate a plurality of reference light pulses one of which occurs between each excitation pulse. A portion of each of these pulses is guided to each of the two light detectors and two more series of electrical pulses are generated. A microprocessor then reads the four electrical pulses resulting from each pair of light pulses and performs a computation on the resulting numbers which indicates the relative concentration of the target concentration being assayed. An optical system masks the excitation light pulses and the emitted light pulses to minimize the amount of scattered excitation light that gets into the emitted light optical channel and spatially integrates the images of the arc yielding the excitation light to control the stability of the image projected onto the photomultiplier tube. The light pipe and an output lens spatially integrates the image of the excitation light mask and focuses this light on the PIN diode so that the dancing image of the arc does not modulate with the variations of the PIN diode cathode and destabilize its output signal.

Abstract translation: 参考系统利用脉冲弧光激发，激发脉冲被引导到含荧光染料的流动池上。 从染料发出的荧光被引导到光电倍增管，将其转换成电脉冲。 每个激发光脉冲的一部分由光管引导到PIN二极管光检测器上，PIN检测器将这些光信号转换成电脉冲。 LED参考光源被脉冲以产生多个参考光脉冲，其中一个发生在每个激励脉冲之间。 这些脉冲中的每一个的一部分被引导到两个光检测器中的每一个，并且产生两个更多的串联的电脉冲。 然后微处理器读取由每对光脉冲产生的四个电脉冲，并且对所得数字进行计算，这表明所测定的目标浓度的相对浓度。 光学系统遮蔽激发光脉冲和发射的光脉冲，以最小化进入发射的光通道的散射激发光的量，并且空间地积分产生激发光的电弧的图像，以控制投影到 光电倍增管。 光管和输出透镜在空间上对激发光掩模的图像进行空间积分，并将该光聚焦在PIN二极管上，使得电弧的跳舞图像不会随PIN二极管阴极的变化而调制，并使其输出信号失稳。

公开(公告)号：US4750837A

公开(公告)日：1988-06-14

申请号：US850933

申请日：1986-04-11

Applicant: Charles R. Gifford ,  Achille M. Bigliardi

Inventor： Charles R. Gifford ,  Achille M. Bigliardi

IPC: G01N33/58 ,  G01N21/05 ,  G01N21/25 ,  G01N21/64 ,  G01N33/536

CPC classification number: G01N21/255 ,  G01N21/645 ,  G01N2021/6482 ,  G01N21/6428 ,  G01N2201/064 ,  G01N2201/0642 ,  G01N2201/0696 ,  G01N2201/0698 ,  G01N2201/082

Abstract: There is disclosed herein a reference system for a fluorometer designed to detect very low levels of materials tagged with fluorophores. There is also disclosed an optical system for use in such a system which improves the signal to noise ratio. The reference system utilizes pulsed arc light excitation which excitation pulses are directed onto a flow cell containing the fluorescent dye. Fluorescent light emitted from the dye is guided to a photomultiplier tube which converts it to electrical pulses. A portion of each excitation light pulse is guided by a light pipe onto a PIN diode light detector which converts these light signals to electrical pulses. A LED reference light source is pulsed to generate a plurality of reference light pulses one of which occurs between each excitation pulse. A portion of each of these pulses is guided to each of the two light detectors and two more series of electrical pulses are generated. A microprocessor then reads the four electrical pulses resulting from each pair of light pulses and performs a computation on the resulting numbers which indicates the relative concentration of the target concentration being assayed. The optical system makes the excitation light pulses and the emitted light pulses to minimize the amount of scattered excitation light that gets into the emitted light optical channel and to control the location and size of the image projected onto the photomultiplier tube to stabilize its output signal. The light pipe and an output lens spatially integrates the image of the excitation light mask and focusses this light on the PIN diode so that the dancing image of the arc does not wander off the face of the PIN diode and destabilize its output signal. The action of the flow cell fluid contents spatially intergrates the fluorescent light thereby helping to stabilize the output of the photomultiplier tube.

Abstract translation: 本文公开了一种用于检测用荧光团标记的非常低水平的材料的荧光计的参考系统。 还公开了一种用于这种提高信噪比的系统中的光学系统。 参考系统利用脉冲弧光激发，激发脉冲被引导到含有荧光染料的流动池上。 从染料发出的荧光被引导到光电倍增管，将其转换成电脉冲。 每个激发光脉冲的一部分由光管引导到PIN二极管光检测器上，PIN检测器将这些光信号转换成电脉冲。 LED参考光源被脉冲以产生多个参考光脉冲，其中一个发生在每个激励脉冲之间。 这些脉冲中的每一个的一部分被引导到两个光检测器中的每一个，并且产生两个更多的串联的电脉冲。 然后微处理器读取由每对光脉冲产生的四个电脉冲，并且对所得数字进行计算，这表明所测定的目标浓度的相对浓度。 光学系统使得激发光脉冲和发射的光脉冲最小化进入发射光通道的散射激发光的量并且控制投影到光电倍增管上的图像的位置和尺寸以稳定其输出信号。 光管和输出透镜在空间上对激发光掩模的图像进行空间积分，并将该光聚焦在PIN二极管上，使得电弧的跳舞图像不会从PIN二极管的表面漂移并使其输出信号失稳。 流动池流体内容物的作用在空间上整合荧光，从而有助于稳定光电倍增管的输出。