Spectral camera with mosaic of filters for each image pixel

    公开(公告)号:US09857222B2

    公开(公告)日:2018-01-02

    申请号:US14267758

    申请日:2014-05-01

    Applicant: IMEC

    Abstract: A spectral camera for producing a spectral output is disclosed. The spectral camera has an objective lens for producing an image, a mosaic of filters for passing different bands of the optical spectrum, and a sensor array arranged to detect pixels of the image at the different bands passed by the filters, wherein for each of the pixels, the sensor array has a cluster of sensor elements for detecting the different bands, and the mosaic has a corresponding cluster of filters of different bands, integrated on the sensor element so that the image can be detected simultaneously at the different bands. Further, the filters are first order Fabry-Perot filters, which can give any desired passband to give high spectral definition. Cross talk can be reduced since there is no longer a parasitic cavity.

    SPECTROMETER
    52.
    发明申请
    SPECTROMETER 审中-公开

    公开(公告)号:US20170211974A1

    公开(公告)日:2017-07-27

    申请号:US15328447

    申请日:2015-07-23

    Abstract: The present invention provides a spectrometer, comprising: an inlet for the receipt of incident light; an optical path for transmitting the incident light from the inlet to an analysis plane; a focusing element located along the optical path, wherein the spectrometer has an in-focus position in which a focal point of the spectrometer and the analysis plane coincide; and a controller adapted in use, when a removable light disperser is placed along the optical path, to cause the spectrometer to be in the in- focus position by controlling the position of the focusing element relative to the analysis plane. The spectrometer is used in the analysis of light from a light source and, due to the ability of the controller to manage the focus point by way of moving the focusing element, the spectrometer is able to bring itself into an in-focus configuration without the need for a user to intervene.

    System and method for optical measurement of a target
    54.
    发明授权
    System and method for optical measurement of a target 有权
    目标光学测量系统和方法

    公开(公告)号:US09581499B2

    公开(公告)日:2017-02-28

    申请号:US14247301

    申请日:2014-04-08

    Abstract: The invention relates to a system and a method for optical measurement of a target, wherein the target is illuminated, either actively illuminated, reflecting ambient light, or self illuminating, and a measurement light beam received from the target or through it is detected. The prior art optical measurement systems generally include mechanical filter wheels and photomultiplier tubes, which cause the equipment to be expensive, large-sized and often not sufficiently accurate and stable. The objective of the invention is achieved with a solution, in which the illuminating light beam and/or measurement light beam is led through a Fabry-Perot interferometeror a set of two or more Fabry-Perot Interferometers, and the Fabry-Perot interferometer or a set of two or more Fabry-Perot Interferometersis controlled into different modes during the measurement of a single target. The invention can be applied inoptical measurements where, for example, reflectance, absorption of fluorescence of the target is measured.

    Abstract translation: 本发明涉及一种用于目标的光学测量的系统和方法,其中目标被照亮,主动照明,反射环境光或自发光,并且检测从目标或通过它接收的测量光束。 现有技术的光学测量系统通常包括机械滤光轮和光电倍增管,这导致设备昂贵,大尺寸并且通常不够准确和稳定。 本发明的目的是通过一种解决方案实现的,其中照明光束和/或测量光束被引导通过法布里 - 珀罗干涉仪或一组两个或多个法布里 - 珀罗干涉仪,以及法布里 - 珀罗干涉仪或 在单个目标的测量期间,将两个或更多个法布里 - 珀罗干涉仪集合控制为不同的模式。 本发明可以应用于光学测量,其中例如测量反射率,靶的荧光吸收。

    IMAGING APPARATUS AND METHOD
    56.
    发明申请
    IMAGING APPARATUS AND METHOD 有权
    成像装置和方法

    公开(公告)号:US20160088238A1

    公开(公告)日:2016-03-24

    申请号:US14785123

    申请日:2014-04-16

    Abstract: An imaging apparatus and method are provided for improving discrimination between parts of a scene enabling enhancement of an object in the scene. A camera unit (12) is arranged to capture first and second images from the scene (8) in first and second distinct and spectrally spaced apart wavebands. An image processing unit (14) processes the images so captured and processes polarimetric information in the images to enable better discrimination between parts of the scene. An image of the scene, including a graphical display of the polarimetric information, may be displayed on a visual display unit (16) thus enhancing an object in the scene for viewing by a user. Correlation parameters indicating, possibly on a pixel-by-pixel basis, the correlation between the actual image intensity (30) at each angle of polarisation and a modelled expected image intensity may be used to enhance the visibility of an object.

    Abstract translation: 提供了一种成像装置和方法,用于改善能够增强场景中的物体的场景的部分之间的区别。 相机单元(12)被布置成在第一和第二不同和频谱间隔开的波段中从场景(8)捕获第一和第二图像。 图像处理单元(14)处理如此捕获的图像,并处理图像中的偏振信息,以便能够更好地区分场景的各个部分。 包括偏振信息的图形显示的场景的图像可以显示在视觉显示单元(16)上,从而增强场景中的对象以供用户观看。 可以在逐个像素的基础上指示每个偏振角下的实际图像强度(30)与建模的预期图像强度之间的相关性的相关参数可以用于增强对象的可视性。

    Emission and transmission optical spectrometer
    57.
    发明授权
    Emission and transmission optical spectrometer 有权
    发射和透射光谱仪

    公开(公告)号:US09121755B2

    公开(公告)日:2015-09-01

    申请号:US13609028

    申请日:2012-09-10

    Abstract: A novel emission and transmission optical spectrometer is introduced herein, which is capable of optically interrogating solid or liquid samples of organic, inorganic or polymeric chemistry, for pharmaceutical research, forensic and liquid analyses, used for identification, purity check, and/or structural study of chemicals. The beneficial aspects of the system are a single sample compartment as confined within the walls of the spectrometer housing, a more compact accessory, and the capability of making both emission (e.g., Raman and Fluorescence) and Infrared (IR, NIR) transmission measurements at designed sample points.

    Abstract translation: 本文引入了一种新型的发射和透射光谱仪,其能够光学询问有机,无机或聚合物化学的固体或液体样品用于鉴定,纯度检查和/或结构研究的药物研究,法医和液体分析 的化学品。 该系统的有益方面是限制在光谱仪外壳的壁内的单个样品室,更紧凑的附件以及同时发射(例如拉曼和荧光)和红外(IR,NIR)传输测量的能力 设计采样点。

    Spectrum detector including a photodector having a concavo-convex patten
    58.
    发明授权
    Spectrum detector including a photodector having a concavo-convex patten 有权
    光谱检测器,包括具有凹凸图案的光电探测器

    公开(公告)号:US09012924B2

    公开(公告)日:2015-04-21

    申请号:US13321082

    申请日:2009-08-17

    Abstract: Provided is a spectrum detector capable of being miniaturized and which does not require complicated optical axis alignment. The spectrum detector of the present invention comprises: a substrate; a photodetector formed on the substrate and including a semiconductor having a plurality of convex portions; and a wavelength detection circuit for detecting a wavelength of light transmitted through the plurality of convex portions, from light incident on the photodetector. According to the present invention, a small-sized spectrum detector can be provided which can easily detect a peak wavelength distribution included in light of an unknown wavelength, without the use of optical equipment such as a grating or prism, thus dispensing with the need for the optical axis alignment of a complex optical system.

    Abstract translation: 提供了能够小型化并且不需要复杂的光轴对准的光谱检测器。 本发明的光谱检测器包括:基板; 形成在所述基板上并包括具有多个凸部的半导体的光电探测器; 以及波长检测电路,用于从入射到光电检测器上的光检测透过多个凸部的光的波长。 根据本发明,可以提供一种小型光谱检测器,其可以容易地检测包括在未知波长的光中的峰值波长分布,而不需要使用诸如光栅或棱镜的光学设备,从而不需要 复合光学系统的光轴对准。

    FAST FOCUSING METHOD AND DEVICE FOR MULTI-SPECTRAL IMAGING
    59.
    发明申请
    FAST FOCUSING METHOD AND DEVICE FOR MULTI-SPECTRAL IMAGING 有权
    用于多光谱成像的快速聚焦方法和装置

    公开(公告)号:US20150092099A1

    公开(公告)日:2015-04-02

    申请号:US14291026

    申请日:2014-05-30

    Abstract: Fast focusing methods and devices for multi-spectral imaging are disclosed. The method comprising selecting one of a plurality of imaging channel as a reference channel, adjusting rotation positions of a stepper motor, calculating focus measures corresponding to all rotation positions of the stepper motor, and obtaining a first distribution curve; in each of the other imaging channels, selecting at least three rotation positions of the stepper motor, matching focus measures at the selected rotation positions with the first distribution curve to obtain a second distribution curve and a offset value between the first distribution curve and the second distribution curve, and calculating a clear focusing position of the imaging channel to be focused according to the offset value; performing a fine-tuning focusing, and thereby obtaining a more precise clear focusing position. A fast focusing for multi-spectral imaging and obtain clear multi-spectral images is obtained.

    Abstract translation: 公开了用于多光谱成像的快速聚焦方法和装置。 该方法包括选择多个成像通道中的一个作为参考通道,调整步进电机的旋转位置,计算与步进电机的所有旋转位置相对应的对焦度量,并获得第一分布曲线; 在每个其它成像通道中,选择步进电动机的至少三个旋转位置,使所选旋转位置处的焦点测量与第一分布曲线匹配,以获得第二分布曲线和第一分布曲线与第二分布曲线之间的偏移值 分布曲线,并根据偏移值计算要聚焦的成像通道的清晰聚焦位置; 执行微调聚焦,从而获得更精确的清晰聚焦位置。 获得多光谱成像的快速聚焦并获得清晰的多光谱图像。

    FLUORESCENCE OBSERVATION SYSTEM AND SET OF FILTERS
    60.
    发明申请
    FLUORESCENCE OBSERVATION SYSTEM AND SET OF FILTERS 审中-公开
    荧光观察系统和滤光片组

    公开(公告)号:US20140211306A1

    公开(公告)日:2014-07-31

    申请号:US14242339

    申请日:2014-04-01

    Abstract: A set of filters for fluorescence observation comprises an illumination light filter and an observation light filter, wherein the following is holds: ∫ S  T L  ( r -> ) · T O  ( r -> ) · r -> ·  r ∫ S  T L  ( r -> ) · T O  ( r -> ) ·  r = R ->   and ( 3 )  W -> - R ->  ≤ 0.2 ; ( 4 ) wherein: λ designates the wavelength, TL(λ) is the transmission characteristic of the illumination light filter, TO(λ) is the transmission characteristic of the observation light filter, and A1, A2 are numbers between 0 and 1, {right arrow over (r)} is a coordinate in the CIE xy chromaticity diagram of the CIE 1931 XYZ color space, S is a line called the spectral locus in the CIE xy chromaticity diagram of the CIE 1931 XYZ color space, and {right arrow over (W)} is the white point in the CIE xy chromaticity diagram of the CIE 1931 XYZ color space.

    Abstract translation: 用于荧光观察的一组滤光器包括照明光滤光器和观察光滤光片,其中以下是:∫S TL(r->)·TO(r->)·r···∫r∫ (r - >)·r = R→>>≤≤≤≤ (4)其中:λ表示波长,TL(λ)是照明光滤波器的透射特性,TO(λ)是观察光滤波器的透射特性,A1,A2是0和1之间的数,{ 右侧箭头(r)}是CIE 1931 XYZ色彩空间的CIE xy色度图中的坐标,S是CIE 1931 XYZ色彩空间的CIE xy色度图中称为光谱轨迹的线,{右箭头 over(W)}是CIE 1931 XYZ色彩空间的CIE xy色度图中的白点。

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