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    Wavelength reference device
    132.
    发明授权
    Wavelength reference device 有权

    公开(公告)号：US12072240B2

    公开(公告)日：2024-08-27

    申请号：US18301871

    申请日：2023-04-17

    Applicant: II-VI Delaware, Inc.

    Inventor： Michael John Laurence Cahill ,  Yang Li

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

    CPC classification number: G01J3/0297 ,  G01J3/0218 ,  G01J3/0286 ,  G01J3/45 ,  H04B10/25

    Abstract: 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.

    Explosion-proof and flameproof enclosure for Raman systems
    134.
    发明授权
    Explosion-proof and flameproof enclosure for Raman systems 有权

    公开(公告)号：US11852533B2

    公开(公告)日：2023-12-26

    申请号：US17551362

    申请日：2021-12-15

    Applicant: Kaiser Optical Systems Inc.

    Inventor： Scott Sutherland ,  Manfred Jagiella ,  Joseph Slater

    IPC: G01J3/44 ,  G01J3/02

    CPC classification number: G01J3/0291 ,  G01J3/0218 ,  G01J3/0286 ,  G01J3/44

    Abstract: Raman analysis systems are partitioned to provide for cost-effective flame resistance and explosion resistance, including relatively small enclosures associated with particular subsystems. One or more of an excitation source, spectrograph and/or controller are disposed in separate, flame-resistant or explosion-resistant enclosures. A remote optical measurement probe may also be disposed in a separate flame-resistant or explosion-resistant enclosure. A grating and a detector of the spectrograph may be disposed in separate enclosures, with sealed windows therebetween to deliver a Raman spectral signal from the optical grating to the detector. The sealed window of the detector enclosure may serve the dual purpose of maintaining flame resistance or explosion resistance while maintaining cooling within the enclosure. Wireless interfaces may be used for communications between the enclosures where practical to reduce or eliminate physical electrical feedthroughs.

    TEST DEVICE AND METHOD OF MANUFACTURING LIGHT EMITTING DEVICE
    136.
    发明申请
    TEST DEVICE AND METHOD OF MANUFACTURING LIGHT EMITTING DEVICE 审中-公开

    公开(公告)号：US20190234798A1

    公开(公告)日：2019-08-01

    申请号：US16378935

    申请日：2019-04-09

    Applicant: Nikkiso Co., Ltd.

    Inventor： Shoichi NIIZEKI ,  Hiroyasu ICHINOKURA

    IPC: G01J3/02 ,  G01R31/26 ,  H01L33/00

    CPC classification number: G01J3/0286 ,  G01J3/0218 ,  G01R31/26 ,  G01R31/2635 ,  G01R31/2642 ,  H01L33/0095

    Abstract: A test device includes: a support that supports a light emitting device subject to a test; a light waveguide that guides light output from the light emitting device supported by the support; a light diffuser plate that diffuses light output from the light waveguide; and a light receiving device that receives light diffused by the light diffuser plate. The test device may further include a constant-temperature device that houses the support and the light emitting device supported by the support and control a temperature of the light emitting device. The light receiving device may be provided outside the constant-temperature device, and the light waveguide may guide light from inside the constant-temperature device to a space outside the constant-temperature device.

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