SPECTROSCOPIC UNIT AND SPECTROSCOPIC MODULE
    1.
    发明公开

    公开(公告)号:US20240230405A1

    公开(公告)日:2024-07-11

    申请号:US18618187

    申请日:2024-03-27

    摘要: A spectroscopic unit includes a housing, a light incident portion provided in the housing, a Fabry-Perot interference filter arranged in the housing and having a first mirror and a second mirror, a distance between the first mirror and the second mirror being variable. The light incident portion includes an aperture portion in which an aperture is formed and a band pass filter arranged between the aperture and the Fabry-Perot interference filter. The aperture portion is configured so that a value obtained by dividing a length of the aperture in a facing direction of the first mirror and the second mirror by a width of the aperture in a direction perpendicular to the facing direction is equal to or more than 0.5 and the entirety of light passing through the aperture is incident on the band pass filter.

    Spectroscopic unit and spectroscopic module

    公开(公告)号:US11971301B2

    公开(公告)日:2024-04-30

    申请号:US17287157

    申请日:2019-08-06

    摘要: A spectroscopic unit includes a housing, a light incident portion provided in the housing, a Fabry-Perot interference filter arranged in the housing and having a first mirror and a second mirror, a distance between the first mirror and the second mirror being variable. The light incident portion includes an aperture portion in which an aperture is formed and a band pass filter arranged between the aperture and the Fabry-Perot interference filter. The aperture portion is configured so that a value obtained by dividing a length of the aperture in a facing direction of the first mirror and the second mirror by a width of the aperture in a direction perpendicular to the facing direction is equal to or more than 0.5 and the entirety of light passing through the aperture is incident on the band pass filter.

    Light detection device
    7.
    发明授权

    公开(公告)号:US11796391B2

    公开(公告)日:2023-10-24

    申请号:US17634280

    申请日:2020-10-06

    摘要: A light detection device includes: a first support part disposed on a mounting surface of the wiring board; a Fabry-Perot interference filter disposed in a first support region of the first support part; and a temperature detector, wherein the temperature detector is disposed on the mounting surface such that at least a part of the temperature detector overlaps a part of the Fabry-Perot interference filter when seen in a first direction perpendicular to the mounting surface and such that at least a part of the temperature detector overlaps a part of the first support part when seen in a second direction in which the first support part and the light detector are aligned with each other, and wherein a first distance between the temperature detector and the first support part in the second direction is smaller than a first width of the first support region in the second direction.

    Spectral apparatus and method of driving spectral apparatus

    公开(公告)号:US11774744B2

    公开(公告)日:2023-10-03

    申请号:US16953584

    申请日:2020-11-20

    发明人: Nozomu Hirokubo

    摘要: A spectral apparatus includes: an interference filter that includes a pair of reflection films and outputs light having a spectral wavelength corresponding to a gap size between the pair of reflection films; a gap sensor that detects the gap size; and one or more processors configured to detect an error based on a difference between the spectral wavelength corresponding to the gap size detected by the gap sensor and a target wavelength of light to be output from the interference filter. The one or more processors detect an error when an integration value obtained by integrating, on a time axis, an absolute value of the difference exceeds a threshold value.