Abstract:
The invention concerns a matrix structure of multispectral detectors (200) comprising: a superimposition of several layers of semiconductor material separated by layers of dielectric material transparent to a light to be detected, said superimposition offering a face for receiving the light to be detected, said superimposition of layers of semiconductor material being spread out in picture elements or pixels, each part of the layer of semiconductor material corresponding to a pixel comprising a light detection element delivering electrical charges in response to the light received by said detection element, means for collecting the electrical charges delivered by each light detection element, said collection means being electrically connected to electrical connection means (153) and comprising conductive walls (151).
Abstract:
Process for physical isolation of regions (110) of a substrate board (100) comprising the following steps: a) formation of trenches (106) in the substrate, delimiting regions of the substrate (110), b) placement of a liquid bonding material (120) in the trenches, which can solidify and bond to the substrate board (100) when in the solid state, c) solidification of the bonding material. Application to isolation of electronic, optical, mechanical or magnetic components.
Abstract:
A device is provided for checking the positioning and/or the focusing of a focused light beam. This integrated optical device for checking the positioning and/or the focusing of a focused light beam having an integrated optics guidance structure includes a multimode waveguide or an array of monomode guides distributed so as to be able to exchange energy. The waveguide or monomode guide array is integrated into the guidance structure and is able, when the distribution of the light beam directed at the input of the guide or the array of guides has a single maximum, to transform the distribution into a distribution having N (N.gtoreq.2) maxima at the output of the guide or array of guides. The guideance structure fruther includes a detector for measuring the distribution of the intensity at the output of the waveguide or monomode guide array, and an analyzer for analyzing the intensity distribution connected to the detector.
Abstract:
Integrated monomode spatial optical filter and its method of embodiment. The optical filter of the invention for isolating one first optical mode and eliminating second stray optical modes consists of an optical microguide (4) borne by a substrate (2) and having along a plane parallel to the surface (P) of the substrate at least one curved portion (6) whose radius of curvature is such that the losses in the curve of the first and second modes are respectively negligible and extremely high and two light absorbers (8, 10) disposed within a given plane on both sides of the curved portion (6).
Abstract:
The device comprises microguides (G1, G2, . . . GN) traversed by light beams with N different wavelengths, a diffraction grating (R) formed by reflecting elliptical facets and a single microguide (G). Point (S) of the end of the single microguide (G) and points (P1, . . . PN) of the ends of microguides (G1, . . . GN) are optically joined by the grating for different wavelengths.
Abstract:
An imager integrated circuit intended to cooperate with an optical system configured to direct light rays from a scene to an inlet face of the circuit, the circuit being configured to perform a simultaneous stereoscopic capture of N images corresponding to N distinct views of the scene, each of the N images corresponding to light rays directed by a portion of the optical system which is different from those directing the rays corresponding to the N−1 other images, including: N subsets of pixels made on a same substrate, each of the N subsets of pixels being intended to perform the capture of one of the N associated images, means interposed between each of the N subsets of pixels and the inlet face of the circuit, and configured to pass the rays corresponding to the image associated with said subset of pixels and block the other rays.
Abstract:
An imager integrated circuit intended to cooperate with an optical system configured to direct light rays from a scene to an inlet face of the circuit, the circuit being configured to perform a simultaneous stereoscopic capture of N images corresponding to N distinct views of the scene, each of the N images corresponding to light rays directed by a portion of the optical system which is different from those directing the rays corresponding to the N-1 other images, including: N subsets of pixels made on a same substrate, each of the N subsets of pixels being intended to perform the capture of one of the N associated images, means interposed between each of the N subsets of pixels and the inlet face of the circuit, and configured to pass the rays corresponding to the image associated with said subset of pixels and block the other rays.
Abstract:
An electrode of a light-emitting device of the OLED type adapted for forming with a second electrode, an optical cavity, including at least one layer based on a material of refraction index n1 including a structured face comprising a plurality of recesses filled with a material of refractive index n2 different from n1.
Abstract:
The invention relates to an optical filtering structure consisting of a set of at least two elementary optical filters (R, V, B), an elementary optical filter being centered on an optimum transmission frequency, characterized in that it comprises a stack of n metal layers (m1, m2, m3) and n substantially transparent layers (d1, d2, d3) which alternate between a first metal layer (m1) and an nth substantially transparent layer (d3), the n metal layers (m1, m2, m3) each having a constant thickness and at least one substantially transparent layer having a variable thickness which sets the optimum transmission frequency of an elementary optical filter, n being an integer larger than or equal to 2.
Abstract:
The invention relates to a photodetectors array that will be hybridized on a readout circuit (30) and realized from a wafer of semiconducting material (11). The wafer is divided into pixels (12), each pixel forming a photodetector, the pixels being separated from each other by separation means formed in the wafer and comprising a photogrid for photodetectors, each photodetector having a connection pad (18) to hybridize the photodetectors array to the readout circuit.