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    Spectral analysis system with moving objective lens
    93.
    发明授权
    Spectral analysis system with moving objective lens 失效
    具有移动物镜的光谱分析系统

    公开(公告)号：US06809812B2

    公开(公告)日：2004-10-26

    申请号：US09877773

    申请日：2001-06-08

    Applicant: Huiqu Yin

    Inventor： Huiqu Yin

    IPC: G01J344

    CPC classification number: G01J3/44 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0227

    Abstract: For identifying black plastics effectively and rapidly with a laser-powered identification probe, it is desirable to maintain full laser power while reducing the power density. This is achieved by providing the probe with a moving lens that disperses the 0.5 mm laser spot over a larger area typically of about 5 mm in diameter. The entire signal from the larger (5 mm) diameter is collected at the same spot in the fiber bundle within the probe that leads to a Raman or other spectral analyzer. There are no other modifications required for the rest of the system as the moving lens does not affect the collection efficiency of the characteristic signal from the sample.

    Abstract translation: 为了用激光供电的识别探针有效快速地识别黑色塑料，希望在降低功率密度的同时保持全激光功率。 这通过为探针提供将0.5mm激光光斑分散在通常为大约5mm直径的较大区域的移动透镜来实现。 来自较大（5mm）直径的整个信号被收集在探针内的纤维束中的相同点处，其通向拉曼或其它光谱分析仪。 由于移动镜头不影响来自样品的特征信号的收集效率，因此系统的其余部分不需要其他修改。

    Method and apparatus for spectrochemical analysis
    94.
    发明申请
    Method and apparatus for spectrochemical analysis 有权
    光谱化学分析的方法和装置

    公开(公告)号：US20020180970A1

    公开(公告)日：2002-12-05

    申请号：US09958458

    申请日：2001-10-05

    Inventor： Michael R. Hammer ,  Philip V. Wilson ,  Mark R. Williams ,  Dower C. Bricker ,  Martin K. Masters ,  Stewart R. Campbell ,  Peter G. Layton

    IPC: G01J003/28

    CPC classification number: G01J3/36 ,  G01J3/02 ,  G01J3/0213 ,  G01J3/0227 ,  G01J3/0229 ,  G01J3/0232 ,  G01J3/1809 ,  G01J3/2803 ,  G01J5/62 ,  G01J2003/1828 ,  G01N21/27 ,  G01N21/31

    Abstract: A method and apparatus for the spectrochemical analysis of a sample in which a solid state array detector (82) is used to detect radiation (62) of spectrochemical interest. The invention involves the use of a shutter (72) adjacent the entrance aperture (70) of a polychromator (74-80) to expose the detector (82) to the radiation (62) for varying lengths of time whereby for short duration exposure times charge accumulation in elements (i.e. pixels) of the detector (82) due to high intensity components of the radiation is limited and for longer exposure times charge accumulation in elements (pixels) of the detector (82) due to feeble intesity components of radiation (62) is increased. This ensures that each reading of the detector (82) includes at least one exposure in which the amount of charge accumulated at each wavelength of interest is neither too little or too great. The problems of feeble radiation components not being accurately measurable and of high intensity radiation components exceeding the charge carrying capacity of elements (pixels) of the detector (82) are thereby able to be avoided. An attenuator (90) may be placed between the radiation source (60) and the detector (82) to permit longer exposure times to be used for very high intensity radiation.

    Abstract translation: 用于对样品进行光谱化学分析的方法和装置，其中固态阵列检测器（82）用于检测分光光度的辐射（62）。 本发明涉及使用与多色调剂（74-80）的入口孔（70）相邻的快门（72）将检测器（82）暴露于辐射（62）以改变长度的时间，从而短时间曝光时间 由于辐射的高强度分量，检测器（82）的元件（即，像素）中的电荷累积受到限制，并且由于辐射的微弱的肥胖分量，对于更长的曝光时间来检测器（82）的元件（像素）中的电荷累积 62）增加。 这确保了检测器（82）的每次读取包括至少一次曝光，其中在每个感兴趣波长处累积的电荷量既不太小也不太大。 因此能够避免无法精确测量的微弱辐射成分和超过检测器（82）的元件（像素）的电荷承载能力的高强度辐射成分的问题。 衰减器（90）可以放置在辐射源（60）和检测器（82）之间，以允许更长的曝光时间用于非常高强度的辐射。

    Under water photon communication by single photon detection
    96.
    发明授权
    Under water photon communication by single photon detection 有权

    公开(公告)号：US11874171B2

    公开(公告)日：2024-01-16

    申请号：US18130871

    申请日：2023-04-04

    Applicant: MIFTEK CORPORATION

    Inventor： Masanobu Yamamoto ,  Keegan Hernandez ,  J. Paul Robinson ,  John Jaiber González Murillo

    IPC: G01J3/02 ,  G01J3/44

    CPC classification number: G01J3/4406 ,  G01J3/0218 ,  G01J3/0227

    Abstract: An optical underwater communication system is disclosed which includes a first transceiver and a second transceiver, each including one or more optical sources configured to provide light activated and deactivated according to a first bit stream, one or more sensor packages each comprising a plurality of photodetectors configured to receive light from the other transceiver and, in response, provide an output voltage signal and an output current signal, a detector configured to i) convert the output voltage signal and the output current signal to pulses associated with arrival of photons, and ii) count the number of pulses based on a predetermined timing sequence, an encoder configured to encode a message to be sent into a first bit stream, and a decoder configured to decode a message received into a second bit stream.

    Tunable notch filter
    97.
    发明授权
    Tunable notch filter 有权

    公开(公告)号：US11788887B2

    公开(公告)日：2023-10-17

    申请号：US17210993

    申请日：2021-03-24

    Applicant: Nanohmics, Inc.

    Inventor： Chris W. Mann

    IPC: G02B5/28 ,  G01J3/02 ,  G01J3/12 ,  G01J3/44 ,  G02B5/20

    CPC classification number: G01J3/0227 ,  G01J3/12 ,  G01J3/44 ,  G02B5/204 ,  G02B5/284 ,  G01J2003/1247

    Abstract: A tunable notch filter for operation in reflection mode comprises an antenna layer positioned on a transmissive substrate and a mirror layer positioned on a support substrate. The antenna layer and the mirror layer are positioned on opposite sides of a gap and facing each other, the gap having a gap distance. The notch filter is tuned by adjusting the gap distance between the antenna layer and the mirror layer. Tuning the notch filter to a selected state can cause the filter to selectively attenuate the reflection of at least some electromagnetic radiation that is incident on the transmissive substrate and enters the notch filter.

    UNDER WATER PHOTON COMMUNICATION BY SINGLE PHOTON DETECTION
    98.
    发明公开
    UNDER WATER PHOTON COMMUNICATION BY SINGLE PHOTON DETECTION 审中-公开

    公开(公告)号：US20230251134A1

    公开(公告)日：2023-08-10

    申请号：US18130871

    申请日：2023-04-04

    Applicant: MIFTEK CORPORATION

    Inventor： Masanobu Yamamoto ,  Keegan Hernandez ,  J. Paul Robinson ,  John Jaiber González Murillo

    IPC: G01J3/44 ,  G01J3/02

    CPC classification number: G01J3/4406 ,  G01J3/0218 ,  G01J3/0227

    Abstract: An optical underwater communication system is disclosed which includes a first transceiver and a second transceiver, each including one or more optical sources configured to provide light activated and deactivated according to a first bit stream, one or more sensor packages each comprising a plurality of photodetectors configured to receive light from the other transceiver and, in response, provide an output voltage signal and an output current signal, a detector configured to i) convert the output voltage signal and the output current signal to pulses associated with arrival of photons, and ii) count the number of pulses based on a predetermined timing sequence, an encoder configured to encode a message to be sent into a first bit stream, and a decoder configured to decode a message received into a second bit stream.

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