公开(公告)号：US12085504B2

公开(公告)日：2024-09-10

申请号：US16973279

申请日：2018-07-18

Applicant: Halliburton Energy Services, Inc.

Inventor： Jian Li ,  Jimmy Price ,  Bin Dai ,  Christopher Michael Jones

IPC: G01N21/3577 ,  E21B49/08 ,  G01J3/12 ,  G02B5/20 ,  G02B5/22

CPC classification number: G01N21/3577 ,  G01J3/12 ,  G02B5/208 ,  G02B5/226 ,  E21B49/0875 ,  G01J2003/1213 ,  G01N2201/0686

Abstract: An optical element may be fabricated by applying foreign or attenuating material, for example, a copper material or a material that includes copper, to a silicon dioxide thin film to form a layer that exhibits extraordinary optical absorption in the infrared wavelength region of at or about 2500-4700 nanometers. The foreign material may comprise or include a transition metal. The optical element exhibits increased accuracy and sensitivity in the infrared wavelength region of at or about 2500-4700 nanometers. The at or about 2500-4700 nanometers absorption property of the optical element can be selectively tuned to any region within this at or about 2500-4700 nanometers wavelength region. The optical element may comprise multiple layers of varying thicknesses to further tune the optical element to one or more spectral bands. Such an optical element may be utilized in a formation fluid analysis tool or an eye protection device.

公开(公告)号：US20240159662A1

公开(公告)日：2024-05-16

申请号：US18422259

申请日：2024-01-25

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Kengo SASAYAMA

IPC: G01N21/3504 ,  G01N21/31 ,  G01N21/61 ,  G01N21/93 ,  G01N33/00 ,  G01N35/00 ,  G02B5/28

CPC classification number: G01N21/3504 ,  G01N21/314 ,  G01N21/61 ,  G01N21/93 ,  G01N33/0006 ,  G01N35/00693 ,  G02B5/281 ,  G02B5/285 ,  G01N2021/933 ,  G01N2035/00702 ,  G01N2201/0686 ,  G01N2223/638

Abstract: An optical device includes an optical filter having a substrate and a multilayer film having a plurality of layers with different refractive indexes formed on at least one side of the substrate, and an infrared light emitting and receiving device. The optical filter includes a wavelength range having an average transmittance of 70% or more with a width of 50 nm or more in a wavelength range of 2400 nm to 6000 nm, and has a maximum transmittance of 5% or more in a wavelength range of 6000 nm or more of the mid-infrared range.

公开(公告)号：US11921038B2

公开(公告)日：2024-03-05

申请号：US17660444

申请日：2022-04-25

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Kengo Sasayama

IPC: G01N21/3504 ,  G01N21/31 ,  G01N21/61 ,  G01N21/93 ,  G01N33/00 ,  G01N35/00 ,  G02B5/28

CPC classification number: G01N21/3504 ,  G01N21/314 ,  G01N21/61 ,  G01N21/93 ,  G01N33/0006 ,  G01N35/00693 ,  G02B5/281 ,  G02B5/285 ,  G01N2021/933 ,  G01N2035/00702 ,  G01N2201/0686 ,  G01N2223/638

Abstract: An optical device comprises an optical filter having a substrate and a multilayer film having layers with different refractive indexes formed on at least one side of the substrate; and an infrared light emitting and receiving device having a first conductive-type semiconductor layer, an active layer, and a second conductive-type semiconductor layer. The multilayer film has alternatively stacked first second layers each having refractive indexes of 1.2 or more and 2.5 or less, and 3.2 or more and 4.2 or less, respectively, in a wavelength range of 2400 nm to 6000 nm. The optical filter includes a wavelength range having an average transmittance of 70% or more with a width of 50 nm or more in a wavelength range of 2400 nm to 6000 nm, and has a maximum transmittance of 5% or more in a wavelength range of 6000 nm to 8000 nm.

公开(公告)号：US11747272B2

公开(公告)日：2023-09-05

申请号：US16872758

申请日：2020-05-12

Applicant: Analog Devices, Inc.

Inventor： Shrenik Deliwala

IPC: G01N21/3504 ,  G01N33/00

CPC classification number: G01N21/3504 ,  G01N33/004 ,  G01N2201/062 ,  G01N2201/0668 ,  G01N2201/0686

Abstract: Device for improving an optical detecting smoke apparatus and implementing thereof. Apparatus and methods for detecting the presence of smoke in a small, long-lasting smoke detector are disclosed. Specifically, the present disclosure shows how to build one or more optimized blocking members in a smoke detector to augment signal to noise ratio. This is performed while keeping the reflections from the housing structure to a very low value while satisfying all the other peripheral needs of fast response to smoke and preventing ambient light. This allows very small measurements of light scattering of the smoke particles to be reliable in a device resistant to the negative effects of dust. In particular, geometrical optical elements, e.g., cap and optical defection elements, are disclosed.

公开(公告)号：US09915604B2

公开(公告)日：2018-03-13

申请号：US15382772

申请日：2016-12-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masaaki Yasuda

IPC: G01N21/00 ,  G01N21/3504 ,  G01N21/61 ,  G01N33/00

CPC classification number: G01N21/3504 ,  G01N21/61 ,  G01N33/004 ,  G01N2201/0686

Abstract: A gas concentration measurement device includes a waveguide including an entrance and an exit, a rotating member, first and second band pass filters on the rotating member and on a pair of planes that intersect each other, and a rotational driver. The rotating member is rotated by the rotational driver so that the first and second band pass filters are selectively located at a transmitting position. When a portion of the rotating member, the first band pass filter, or the second band pass filter, the portion having a maximum radius of gyration around a rotating shaft, is defined as a maximum radius portion, and when a rotation locus obtained by imaginarily rotating the maximum radius portion around the rotating shaft in a view along the rotating shaft is defined as a reference circle, the exit is located in the reference circle.

公开(公告)号：US09804086B2

公开(公告)日：2017-10-31

申请号：US15145836

申请日：2016-05-04

Applicant: Emcee Electronics, Inc.

Inventor： Ryan Matthew Case

IPC: G01N21/3577 ,  G01N33/22 ,  G01N21/35

CPC classification number: G01N21/3577 ,  G01N33/22 ,  G01N2021/3595 ,  G01N2201/0221 ,  G01N2201/062 ,  G01N2201/0686

Abstract: A device and method of use are provided for measuring the concentration of fatty acid methyl ester (FAME) in jet fuel to a limit of detection of 1 ppm. The device measures concentration of FAME in jet fuel via Fourier transform infrared spectroscopy (FTIR) with a spectral resolution of 1 cm−1. The device can use an infrared light emitting diode (IR LED) and mercury cadmium telluride (MCT) detector in which the spectral output of the IR LED and the spectral response of the MCT detector is centered on the spectral absorbance of an ester bond, a defining spectral characteristic of FAME. Other IR LEDs with differing spectral outputs can be used to measure the presence and/or concentration of different analytes in different fluids.

公开(公告)号：US20170167983A1

公开(公告)日：2017-06-15

申请号：US15325252

申请日：2015-07-10

Applicant: Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO

Inventor： Dolf Jaap Klomp ,  Fokko Pieter Wieringa ,  Andrew Statham

IPC: G01N21/71 ,  G01N21/85 ,  A61M1/36 ,  A61B5/1455 ,  A61B5/145 ,  A61M1/16 ,  G01N21/05 ,  G01N33/487

CPC classification number: G01N21/718 ,  A61B5/0075 ,  A61B5/14546 ,  A61B5/14557 ,  A61M1/1605 ,  A61M1/3609 ,  A61M2205/3306 ,  G01N21/05 ,  G01N21/85 ,  G01N33/4875 ,  G01N2201/0686

Abstract: A spectroscopy device is disclosed for inline monitoring of analytes in bulk fluid streams, capable of maintaining sterile conditions. The device comprises a cassette suitable for holding a fluid analyte (151) and having a laser entry wall part and a detector wall part, the laser entry wall part arranged to be optically transparent to laser radiation of a predetermined wavelength and the detector wall part arranged to be optically transparent for spectral parts of interest. Laser transmission optics are provided to focus a laser beam to produce a breakdown plasma discharge within the fluid inside the cassette. A photodetector substrate is provided comprising an array of photosensors, tuned to detect characteristic emission lines from the plasma. The photodetector substrate is conformal to at least the detector wall part of the cassette. A placement provision is arranged for user removable placement of the cassette. Dichroic hot and cold mirrors are applied to selectively transmit/reflect excitation laser light and light emitted by the plasma.

公开(公告)号：US20160245742A1

公开(公告)日：2016-08-25

申请号：US15145836

申请日：2016-05-04

Applicant: Emcee Electronics, Inc.

Inventor： Ryan Matthew Case

IPC: G01N21/3577 ,  G01N33/22

CPC classification number: G01N21/3577 ,  G01N33/22 ,  G01N2021/3595 ,  G01N2201/0221 ,  G01N2201/062 ,  G01N2201/0686

Abstract: A device and method of use are provided for measuring the concentration of fatty acid methyl ester (FAME) in jet fuel to a limit of detection of 1 ppm. The device measures concentration of FAME in jet fuel via Fourier transform infrared spectroscopy (FTIR) with a spectral resolution of 1 cm−1. The device can use an infrared light emitting diode (IR LED) and mercury cadmium telluride (MCT) detector in which the spectral output of the IR LED and the spectral response of the MCT detector is centered on the spectral absorbance of an ester bond, a defining spectral characteristic of FAME. Other IR LEDs with differing spectral outputs can be used to measure the presence and/or concentration of different analytes in different fluids.

公开(公告)号：US09140642B2

公开(公告)日：2015-09-22

申请号：US14578625

申请日：2014-12-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroshi Kawanago

IPC: G01N21/25 ,  G01J3/42 ,  G01J3/10 ,  G01J3/46 ,  G01J3/50

CPC classification number: G01N21/251 ,  G01J3/10 ,  G01J3/42 ,  G01J3/465 ,  G01J3/502 ,  G01N2201/062 ,  G01N2201/0686

Abstract: The spectrophotometer of the present invention measures a spectral reflectance of an object to be measured to thereby determine a color value of the object to be measured based on a color-matching function of an XYZ color system and the spectral reflectance. The spectrophotometer includes an irradiation unit configured to irradiate the object to be measured with light having a spectral intensity distribution in which a relative intensity at a wavelength at which the value of z reaches its peak in the color-matching function is equal to or greater than 0.5.

Abstract translation: 本发明的分光光度计测量待测物体的光谱反射率，由此基于XYZ色系的色匹配函数和光谱反射率确定待测物体的色值。 分光光度计包括：照射单元，被配置为用具有光谱强度分布的光照射被测量物体，其中在色彩匹配函数中z达到其峰值的波长处的相对强度等于或大于 0.5。

公开(公告)号：US20150185151A1

公开(公告)日：2015-07-02

申请号：US14415311

申请日：2013-07-16

Applicant: The Arizona Board of Regents on behalf of the University of Arizona

Inventor： Urs Utzinger ,  Bhaskar Banerjee ,  Timothy E. Renkoski ,  Nathaniel S. Rial ,  Logan Graves

IPC: G01N21/64 ,  G01N33/483 ,  G01N21/55

CPC classification number: G01N21/6486 ,  A61B1/00009 ,  A61B1/0005 ,  A61B1/043 ,  G01N21/4795 ,  G01N21/55 ,  G01N21/6456 ,  G01N21/6458 ,  G01N33/4833 ,  G01N2021/6484 ,  G01N2201/0686

Abstract: Methods for reliable identification of low-contrast lesions within a tissue of a subject comprise delivering an excitation signal to the tissue, wherein the excitation signal is selected to stimulate tissue to produce autofluorescence and/or reflectance. The autofluorescence and/or reflectance is detected, and ratiometric images are produced based on the autofluorescence and/or reflectance images. An imaging system is provided which is configured to carry out such methods, irradiating tissue at a various possible excitation wavelengths, such as UV excitation wavelengths below 300 nm, to elicit fluorescence from specific native fluorophores.

Abstract translation: 用于可靠地鉴定受试者组织内的低对比度损伤的方法包括向组织递送激发信号，其中选择激发信号以刺激组织以产生自发荧光和/或反射。 检测自发荧光和/或反射率，并且基于自发荧光和/或反射图像产生比例图像。 提供了一种成像系统，其被配置为执行这样的方法，以各种可能的激发波长照射组织，例如低于300nm的UV激发波长，以引发特定天然荧光团的荧光。