SPECTROMETER METHOD AND APPARATUS
    43.
    发明公开

    公开(公告)号:US20240302213A1

    公开(公告)日:2024-09-12

    申请号:US18652142

    申请日:2024-05-01

    Applicant: Spectricity

    Abstract: A user device includes a spectrometer module adapted to acquire spectral information and output spectral data representing the acquired spectral information, memory adapted to store predetermined calibration data, a processing unit configured to substantially correct the spectral data using the stored calibration data and an electronic circuit module, The electronic circuit module includes a light sensitive area for detecting incident light of a plurality of wavelengths within a set wavelength interval, detected light of a plurality of wavelengths forming spectral data and the light sensitive area including a plurality of light detectors. Each light detector is adapted to detect light of a selected wavelength. The calibration data is based on a predetermined characteristic of the electronic circuit module, which has been configured to correct a wavelength detected by each light detector and the wavelengths detected by each light detector has a known relationship to a wavelength detected by a reference light detector.

    Spectroscopic Apparatus and Method
    46.
    发明申请

    公开(公告)号:US20170268930A1

    公开(公告)日:2017-09-21

    申请号:US15532247

    申请日:2015-12-01

    CPC classification number: G01J3/4338 G01J3/40

    Abstract: There is described an apparatus (2) for measuring an amount of an analyte in a mixture. In one example, the apparatus (2) has a laser source (6) for generating a frequency-modulated laser beam (22). A cavity (36) receives the frequency-modulated laser beam (22) and a photodetector (46) obtains an intensity signal indicative of an interaction between the frequency-modulated laser beam (22) and the mixture. The apparatus (2) has a first demodulator (76) for producing a first demodulation signal. A frequency locking arrangement uses the first demodulation signal to lock a carrier frequency of the frequency-modulated laser beam (22) and a mode of the cavity (36) to each other. The apparatus has a second demodulator (50) for producing a second demodulation signal and for generating, on the basis of the second demodulation signal, an output indicative of the amount of the analyte in the mixture. Other apparatus and methods are described.

    Band dependent linearization for multiband remotely sensed and aerial imagery
    47.
    发明授权
    Band dependent linearization for multiband remotely sensed and aerial imagery 有权
    多频带遥感和航空影像的带依赖线性化

    公开(公告)号:US09147228B2

    公开(公告)日:2015-09-29

    申请号:US14317372

    申请日:2014-06-27

    Applicant: Exelis Inc.

    Abstract: A system for processing a multiband image, including digital computer memory for storing a multiband image having multiple bands of image data; and processing circuitry for processing the multiband image, wherein the processing circuitry (a) determines pixel locations in the bands of the multiband image having values above the band-specific white value threshold for each of the bands of the multiband image, (b) determines a band-specific correction factor for each of plural bands of the multiband image based on the determined pixel locations, and (c) applies the corresponding band-specific correction factor to the respective plural bands of the multiband image to produce a corrected image.

    Abstract translation: 一种用于处理多频带图像的系统,包括用于存储具有多个图像数据带的多频带图像的数字计算机存储器; 以及用于处理所述多频带图像的处理电路,其中所述处理电路(a)确定所述多频带图像的所述频带中的像素位置具有高于所述多频带图像的每个频带的频带特定白值阈值的值,(b)确定 基于所确定的像素位置对所述多频带图像的多个频带中的每一个频带进行频带特定校正因子,以及(c)将相应的频带专用校正因子应用于多频带图像的相应多个频带以产生校正图像。

    Spectrometer apparatus for self-calibrating color imaging apparatus
    48.
    发明授权
    Spectrometer apparatus for self-calibrating color imaging apparatus 失效
    用于自校准彩色成像装置的光谱仪装置

    公开(公告)号:US4898467A

    公开(公告)日:1990-02-06

    申请号:US267596

    申请日:1988-11-07

    Applicant: James R. Milch

    Inventor: James R. Milch

    Abstract: Spectrometer apparatus, for self-calibrating a color image scanner of the line scanner or area scanner type, comprises a member, having an optical slit, movable into position on an optical axis of the scanner between its polychromatic light source and its focusable lens in a plane occupied by a color image when it is scanned. A diffraction grating is similarly movable onto the optical axis, a given distance from an image sensor of the scanner. The light source illuminates the slit and the diffraction grating disperses transmitted polychromatic light according to its wavelength, forming duplicate spectra off-axis across respective halves of the image sensor, with longer wavelengths being diverted to respectively higher angles.

    Abstract translation: 用于自动校准行扫描仪或区域扫描器类型的彩色图像扫描仪的光谱仪装置包括具有光学狭缝的构件,可在其多色光源和可聚焦透镜之间移动到扫描仪的光轴上的位置 扫描时由彩色图像占据的平面。 衍射光栅类似地可以在距离扫描仪的图像传感器一定距离的光轴上移动。 光源照亮狭缝,衍射光栅根据其波长分散透射的多色光,在图像传感器的相应半部分之外离轴形成重复的光谱,其中较长的波长分别转向较高的角度。

    Device to introduce an optic measuring index at photoelectric detection of photographic plates
    49.
    发明授权
    Device to introduce an optic measuring index at photoelectric detection of photographic plates 失效
    在摄影板的光电检测中引入光学测量指标的设备

    公开(公告)号:US3829222A

    公开(公告)日:1974-08-13

    申请号:US34464473

    申请日:1973-03-26

    Applicant: SAAB SCANIA AB

    Inventor: ASLUND N

    CPC classification number: G01J3/40 G01D5/341

    Abstract: Density variation across a localized area of a photographic plate is detected by directing a beam through said area and thence onto a photoelectric detector through a narrow slot at the imaging plane. Relative motion is effected between the beam and the slot, hence detector output varies with density across the scanned zone. A fiducial mark carrier is in a separate beam (preferably emanating from the same source) which follows a path in bypass relation to the plate but which is combined with the image carrying beam at the slot. Light filters in the respective beams enable separate electronic processing of image beam signals and fiducial mark beam signals.

    Signal-compensating system for measuring machines, in which photographic plates are examined by a photo-electric method
    50.
    发明授权
    Signal-compensating system for measuring machines, in which photographic plates are examined by a photo-electric method 失效
    用于测量机器的信号补偿系统,其中摄影板由光电方法检查

    公开(公告)号:US3809482A

    公开(公告)日:1974-05-07

    申请号:US34741773

    申请日:1973-04-03

    Applicant: SAAB SCANIA AB

    CPC classification number: G01J3/40 G01J2003/2866 G01N21/5911

    Abstract: An image beam from a constant intensity light source is passed through a small area of an image on a photographic plate, thence through a variable width scanning slot and onto a photoelectric detector. Relative scanning motion between beam and slot is effected in directions transverse to slot length. A second beam from the same source is directed around the plate, through the slot and onto the detector. The beams fall on the detector alternately, in synchronism with scanning, so that the second beam produces calibration pulses. Detector output is so amplified as to maintain amplified calibration pulses at constant magnitude.

    Abstract translation: 来自恒定强度光源的图像光束通过照相板上的图像的小区域,然后通过可变宽度的扫描槽并到达光电检测器。 光束和狭缝之间的相对扫描运动在横向于槽长度的方向上进行。 来自相同源的第二个光束被引导在板周围,穿过槽并且到达检测器。 光束与扫描同步地交替地落在检测器上,使得第二光束产生校准脉冲。 检测器输出被放大,以将放大的校准脉冲保持在恒定幅度。

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