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    Wavelength reference device
    6.
    发明授权
    Wavelength reference device 有权

    公开(公告)号：US11662250B2

    公开(公告)日：2023-05-30

    申请号：US17112583

    申请日：2020-12-04

    申请人： II-VI Delaware, Inc.

    发明人： Michael John Laurence Cahill ,  Yang Li

    IPC分类号： G01J3/02 ,  H04B10/25 ,  G01J3/45

    CPC分类号： G01J3/0297 ,  G01J3/0218 ,  G01J3/0286 ,  G01J3/45 ,  H04B10/25

    摘要： Described herein is a wavelength reference device comprising a housing defining an internal environment having a known temperature. A broadband optical source is disposed within the housing and configured to emit an optical signal along an optical path. The optical signal has optical power within a wavelength band of interest. An optical etalon is also disposed within the housing and positioned in the optical path to filter the optical signal to define a filtered optical signal that includes one or more reference spectral features having a known wavelength at the known temperature. The device also includes an optical output for outputting the filtered optical signal.

    ANALYZER AND WARM-UP DETERMINATION METHOD
    8.
    发明申请
    ANALYZER AND WARM-UP DETERMINATION METHOD 审中-公开

    公开(公告)号：US20190195780A1

    公开(公告)日：2019-06-27

    申请号：US16168892

    申请日：2018-10-24

    申请人： SHIMADZU CORPORATION

    发明人： Jumpei ZUSHI ,  Hiroyuki YOSHIMURA

    IPC分类号： G01N21/03 ,  G01J3/10

    CPC分类号： G01N21/0332 ,  G01J3/027 ,  G01J3/0286 ,  G01J3/10 ,  G01J2003/106 ,  G01N2021/0162 ,  G01N2201/126

    摘要： A spectrophotometer 1 comprises a control unit 45 with a warming-up determination unit 452 that determines the completion of a warming-up based on a variation amount of a detection signal in a predetermined duration when a light detector 7 detects a light from a sample chamber without loading the sample. Specifically, the warming-up determination unit 452 calculates a difference between a signal intensity of the detection signal detected by the light detector 7 at the time when the predetermined time passes and a signal intensity of the detection signal detected by the light detector 7 at a previous time and determines that a warming-up is complete when a value of the difference is less than a first threshold value. The warming-up determination unit 452 automatically determines the completion of warming-up independently from the determination by the user.

    SPECTROSCOPE
    10.
    发明申请
    SPECTROSCOPE 审中-公开

    公开(公告)号：US20180224330A1

    公开(公告)日：2018-08-09

    申请号：US15749205

    申请日：2016-08-04

    申请人： HAMAMATSU PHOTONICS K.K.

    发明人： Takafumi YOKINO ,  Katsumi SHIBAYAMA ,  Katsuhiko KATO

    IPC分类号： G01J3/18 ,  G01J3/36 ,  G01J3/02 ,  G02B5/18

    CPC分类号： G01J3/18 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0256 ,  G01J3/0262 ,  G01J3/0264 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/36 ,  G02B5/1861

    摘要： A spectrometer includes a support having a bottom wall part in which a depression and a peripheral part are provided, and a side wall part, a light detection element supported by the side wall part while opposing the depression, and a dispersive part disposed on an inner surface of the depression. A length of the depression in a second direction in which a plurality of grating grooves included in the dispersive part is aligned is larger than a length of the depression in a third direction orthogonal to the second direction when viewed in a first direction in which the depression and the light detection element oppose each other. An area of the peripheral part adjacent to the depression in the second direction is larger than an area of the peripheral part adjacent to the depression in the third direction when viewed in the first direction.