SWITCHABLE MULTI-SPECTRUM OPTICAL SENSOR
    2.
    发明申请

    公开(公告)号:WO2021262343A8

    公开(公告)日:2021-12-30

    申请号:PCT/US2021/032657

    申请日:2021-05-17

    摘要: An optical system, comprising a multi-spectral optical element, a switchable filter, a dual bandpass filter, and a sensor. The multi-spectral optical element receives light in at least a first spectral band and a second spectral band. The dual bandpass filter filters out wavelengths of light in a transition region of the switchable filter between the first spectral band and the second spectral band. The switchable filter filters light received from the dual bandpass filter in the first spectral band in a first mode where the switchable filter transmits light in the first spectral band and in a second mode where the switchable filter does not transmit light in the first spectral band. The sensor is disposed at an image plane, and the multi-spectral optical element is configured to produce a modulation transfer function value that is a above a predetermined threshold for each of the spectral bands.

    IR-EMITTER MIT MODULIERBAREM EMISSIONSGRAD AUF BASIS VON METAMATERIALIEN

    公开(公告)号:WO2020165150A1

    公开(公告)日:2020-08-20

    申请号:PCT/EP2020/053438

    申请日:2020-02-11

    摘要: Die Erfindung betrifft einen modulierbaren Infrarot-Emitter umfassend ein Heizelement, ein flächiges Grundelement, eine dielektrische Zwischenschicht und ein flächiges Deckelement, welches ein strukturiertes Metamaterial ist und einen Aktuator, wobei der Aktuator für eine Relativbewegung des Deckelementes und des Grundelementes zwischen einer ersten und zweiten Position konfiguriert ist, um die Intensität der Emission des Infrarot-Emitters zu modulieren. Die Erfindung betrifft weiterhin Herstellungsverfahren für den Infrarot-Emitter, Verfahren zur modulierten Emission von Infrarotrotstrahlung mittels des Infrarot-Emitters sowie bevorzugte Verwendungen des Infrarot-Emitters. Auch ein System umfassend den Infrarot-Emitter und eine Steuereinrichtung zur Regulation des Aktuators sind bevorzugt Gegenstand der Erfindung.

    DUPLEX IMAGING MICROSCOPE
    6.
    发明申请

    公开(公告)号:WO2020049383A1

    公开(公告)日:2020-03-12

    申请号:PCT/IB2019/056832

    申请日:2019-08-12

    IPC分类号: G02B21/36 G01J3/02 G01J3/12

    摘要: An imaging system includes a magnifier, a filter and one or more image capture devices. The magnifier is operable to generate a magnified version of a source scene representing a sample. The filter, in combination with the magnifier, is operable to provide a distorted version of the magnified version. The one or more image capture devices is operable to generate six or more responses from the distorted version and the magnified version. The six or more responses are capable of being analyzed to construct a hypercube of the source scene. In an embodiment the magnifier is an optical microscope.

    A HYBRID SPECTRAL IMAGER
    7.
    发明申请

    公开(公告)号:WO2020025987A1

    公开(公告)日:2020-02-06

    申请号:PCT/GR2019/000054

    申请日:2019-07-31

    摘要: The invention discloses a hybrid and scanning/snapshot spectral imager operating in both staring-spectral scanning and video snapshot spectral imaging modes. Snapshot spectral imaging operation at a set of selectable critical spectral bands comprise the basis for a machine learning-based estimation and video-rate display of a full hyperspectral cube, without compromising spatial resolution. Operating in the staring-type scanning mode, the disclosed hybrid spectral imager acquires sets of narrow band images at a given tuning step and for a plurality of tuning steps until completing a hyperspectral cube sampling. Scanning operation may be used for optimally configuring snapshot operation, such that redundant information present in the collected spectra is discarded. The disclosed hybrid spectral imager includes embodiments susceptible for miniaturization and low power operation, allowing for their integration into mobile phone and computer platforms. The invention is intended to address applications comprising, at least in part, nondestructive testing, real-time spectral and chemical mapping, noninvasive diagnosis and spectral photography.

    一种太赫兹时域光谱数据采集系统

    公开(公告)号:WO2019233033A1

    公开(公告)日:2019-12-12

    申请号:PCT/CN2018/114430

    申请日:2018-11-07

    IPC分类号: G01J3/28 G01J3/12

    摘要: 一种太赫兹时域光谱数据采集系统,包括:依次连接的锁相放大器(11)、前置放大器(12)、有源滤波器(13)、衰减放大器(14)、模数转换器(15)和数模转换器(16);锁相放大器(11),用于放大光电导接收天线产生的微弱电流信号,输出第一弱电压信号;前置放大器(12),用于补偿锁相放大器(11)的放大能力,对第一弱电压信号进行放大得到第二弱电压信号;有源滤波器(13),用于对第二弱电压信号进行低通滤波后进行放大,得到第三弱电压信号;衰减放大器(14),用于将第三弱电压信号转换为第四弱电压信号;模数转换器(15),用于采集第四弱电压信号并转换为数字电压信号;数模转换器(16),用于将数字电压信号转换为模拟电压信号。太赫兹时域光谱数据采集系统采用单板的设计实现太赫兹时域光谱数据采集,具备小型、快速、易于集成的特点,有较强的易用性和实用性。

    DISPOSITIVO MONOCROMADOR
    9.
    发明申请

    公开(公告)号:WO2019219990A1

    公开(公告)日:2019-11-21

    申请号:PCT/ES2019/070161

    申请日:2019-03-11

    IPC分类号: G01J3/12 G01J3/18

    摘要: Dispositivo monocromador, que comprende un elemento giratorio (1) en el que incide un haz (B) de radiación electromagnética. El elemento giratorio comprende una única pieza (1) basada en un material principal que incluye una primera superficie (2) en la que incide un haz (B) y una segunda superficie (3) en la que incide dicho haz (B) después de incidir en la primera superficie (2), comprendiendo cada superficie (2, 3) una zona (2a, 3a) de material principal y una zona (2b, 3b) de material multi-capa dispuestas de forma adyacente en dicha superficie. El eje (A) de giro de dicha pieza (1) está dispuesto a una distancia (l) de separación de la primera superficie (2).

    LOW-COST, COMPACT CHROMATIC CONFOCAL MODULE
    10.
    发明申请

    公开(公告)号:WO2019217735A1

    公开(公告)日:2019-11-14

    申请号:PCT/US2019/031600

    申请日:2019-05-09

    发明人: LIANG, Rongguang

    摘要: Devices, systems and methods for use in confocal imaging systems are described that enable lateral and axial scans at high speeds and without a moving scanner while producing high quality images. One chromatic confocal optical head includes an illumination source, such as an addressable point source array, to provide a wide spectrum illumination including multiple wavelengths. The optical head also includes a beamsplitter to allow the light to be directed toward an object, to receive the reflected light from the object and to direct the reflected light toward a detector. The optical head further includes a pinhole mask that is positioned to receive the light that is reflected from the object after passing through the beamsplitter, and a dispersion element that is positioned to receive the light after passing through the pinhole mask, and to separate the light into multiple spectral components for reception by the detector.