Abstract:
A hybrid multispectral imaging sensor, characterized in that it comprises a photosensitive backside-illumination detector (DET) that is made on a substrate (100) made of InP, and that is formed of a matrix of pixels (105, P1, P2, P3) that are themselves made in a structure based on InGaAs (103), and a filter module (MF) that is formed of a matrix of elementary filters (λ1, λ2, λ3) reproducing said matrix of pixels, and that is mounted into contact with said substrate (100), said substrate (100) made of InP having a thickness less than 50 μm, and preferably less than 30 μm.
Abstract:
A method of limiting cross-talk in an imaging sensor, the sensor being in the form of a matrix of macropixels defining an image, each macropixel being formed by a matrix of individual pixels, each of which is dedicated to a distinct spectral band, all of the individual pixels dedicated to the same spectral band forming a sub-image, the image being topologically subdivided into at least one parcel, and the method including the following steps: measuring the spectral response of each individual pixel λ1, λ2, λ3, . . . , λ9; calculating the mean spectral response of each sub-image in a parcel; targeting to define the ideal response of each sub-image in the parcel; estimating a series of coefficients for minimizing cross-talk in the parcel; and applying the coefficients to the macropixels in order to correct the sub-images in the parcel. The method is remarkable in that the ideal response is a Gaussian function.
Abstract:
L'invention concerne un dispositif de spectroscopie en longueur d'onde comportant, sur un substrat, une cellule de filtrage CF constituée de deux miroirs séparés par une membrane d'espacement, cette cellule de filtrage étant formée par une pluralité de filtres interférentiels. De plus, ce dispositif comporte une cellule d'émission CE comprenant une pluralité de sources d'émission, chacune de ces sources étant associée à l'un des filtres interférentiels.
Abstract:
L'invention présente un dispositif de calibration sur un substrat SU en silicium formé, en sus d'un niveau de référence Nc, par au moins deux niveaux distincts Ng, Nd. Ces niveaux présentent des dopages distincts. L'invention vise également un procédé de réalisation de ce dispositif de calibration, procédé comprenant une étape de définition pour définir au moins deux sections distinctes Sg, Sd d'une section de référence Sc sur un substrat SU en silicium. Cette étape de définition consiste à doper à des taux différents les sections différentes de la section de référence.
Abstract in simplified Chinese:一种多光谱摄像设备本发明叙述一种多光谱摄像设备包含:光敏侦测器(DET),由一像素矩阵构成;一数组之微透镜(ML1、ML2、ML3),再现该像素矩阵;及由一矩阵之独立滤波器(λ1、λ2、λ3)形成的一滤波模块(MF),再现该像素矩阵。 该设备值得注意之处为数组之微透镜系被安排与侦测器(DET)直接接触,及该滤波模块(MF)系被制造于一基板(SS)上,其被放置成与该数组之微透镜接触。
Abstract:
The filter has three cells (C1-C3) consecutively juxtaposed on an optical substrate. One cell comprises of two sections (S1, S2) juxtaposed along a propagation axis of the filter. The two sections differ by their refraction indexes and widths. The section (S1) has a perturbation zone. The perturbation zone is primarily composed of same material as the rest of the section (S1).