SPECTROMETER AND METHOD FOR ADJUSTING A FILTER ARRAY

    公开(公告)号:US20180143075A1

    公开(公告)日:2018-05-24

    申请号:US15802993

    申请日:2017-11-03

    Inventor: Beat DE COI

    Abstract: Spectrometer for recording a spectrum, in particular in a wavelength range of 250 nm to 1150 nm, comprising: a sensor array and a filter array for filtering the radiation depending on the wavelength, wherein, in order to reduce production costs, provision is made of a device for identifying the sensor pixels covered by the filter array, having a nonvolatile memory in which the coordinates of the filter array in relation to the sensor array and/or the coordinate transformation of the filter array in relation to the sensor array are/is stored in order to assign the sensor pixels to the individual filter pixels on the basis of the stored coordinates and/or coordinate transformation and/or in order to activate the individual filter pixels depending on which of the sensor pixels are covered by the corresponding filter pixels.

    Spectroscopic image acquiring apparatus and spectroscopic image acquiring method

    公开(公告)号:US09835492B2

    公开(公告)日:2017-12-05

    申请号:US14835843

    申请日:2015-08-26

    CPC classification number: G01J3/2823 G01J3/26 G01J2003/1239

    Abstract: A spectroscopic camera is provided with a wavelength variable interference filter including a pair of reflection films and an electrostatic actuator for changing a size of a gap between the reflection films; an imaging unit including a plurality of imaging pixels; and a filter control unit for controlling the electrostatic actuator based on light-received wavelength data in which a control amount for receiving light of a target wavelength is recorded with respect to each of the imaging pixels of the imaging unit. An acquisition order of the target wavelength emitted from the wavelength variable interference filter is set for each of the imaging pixels, and the acquisition order is set in a descending order of the driving amount of a gap, and thus a value for emitting the light of the target wavelength in the set acquisition order is recorded as the light-received wavelength data.

    Variable optical filter and a wavelength-selective sensor based thereon
    7.
    发明授权
    Variable optical filter and a wavelength-selective sensor based thereon 有权
    可变光学滤波器和基于其的波长选择性传感器

    公开(公告)号:US09515119B2

    公开(公告)日:2016-12-06

    申请号:US15017583

    申请日:2016-02-05

    Abstract: A variable optical filter is disclosed including a bandpass filter and a blocking filter. The bandpass filter includes a stack of alternating first and second layers, and the blocking filter includes a stack of alternating third and fourth layers. The first, second and fourth materials each comprise different materials, so that a refractive index of the first material is smaller than a refractive index of the second material, which is smaller than a refractive index of the fourth material; while an absorption coefficient of the second material is smaller than an absorption coefficient of the fourth material. The materials can be selected to ensure high index contrast in the blocking filter and low optical losses in the bandpass filter. The first to fourth layers can be deposited directly on a photodetector array.

    Abstract translation: 公开了一种可变滤波器,其包括带通滤波器和阻塞滤波器。 带通滤波器包括交替的第一和第二层的堆叠,并且阻挡滤波器包括交替的第三和第四层的堆叠。 第一,第二和第四材料各自包括不同的材料,使得第一材料的折射率小于第二材料的折射率,其小于第四材料的折射率; 而第二材料的吸收系数小于第四材料的吸收系数。 可以选择材料以确保阻挡滤波器中的高折射率对比度和带通滤波器中的低光损耗。 第一至第四层可以直接沉积在光电检测器阵列上。

    Apparatus and method for measuring optical characteristics of an object
    10.
    发明授权
    Apparatus and method for measuring optical characteristics of an object 有权
    用于测量物体的光学特性的装置和方法

    公开(公告)号:US07397541B2

    公开(公告)日:2008-07-08

    申请号:US11523798

    申请日:2006-09-18

    Abstract: Color/optical characteristics measuring systems and methods are disclosed. Perimeter receiver fiber optics/elements are spaced apart from a central source fiber optic/element and received light reflected from the surface of the object is measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object being measured. Under processor control, the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention.

    Abstract translation: 公开了颜色/光学特性测量系统和方法。 外围接收器光纤/元件与中心源光纤/元件间隔开,并且测量从物体表面反射的受光。 来自周边光纤的光通过各种滤光片。 该系统利用周边接收机光纤来确定关于探头相对于被测量物体的高度和角度的信息。 在处理器控制下,可以以预定的高度和角度进行颜色测量。 公开了各种颜色光谱光度计布置。 也可以获得半透明度,荧光和/或表面纹理数据。 可以提供音频反馈以指导操作者使用该系统。 探头可能具有可移除或屏蔽的尖端,以防止污染。

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