Abstract:
L'invention concerne un dispositif afficheur d'image ou dispositif capteur d'image, comportant une matrice de pixels ou de sous-pixels de photodétecteurs ou de photoémetteurs ; un dispositif de focalisation commun à plusieurs pixels ; et un filtre spectral (2) comportant au moins un premier ensemble de cellules de filtrage (21, 22, 23) comprenant un même motif nanostructuré (27), chaque cellule étant associée à un pixel ou à un sous-pixel et, une direction privilégiée (26) du motif étant, pour chaque cellule, orientée approximativement radialement ou ortho-radialement par rapport à un axe optique (0) du dispositif de focalisation.
Abstract:
Method of producing a filter for an electromagnetic radiation comprising at least two colour filters, each formed of a stack on a rigid substrate of at least one dielectric layer and of metal layers alternately, so as to transmit at least two colours, said method comprising the following steps: (a) deposition on said substrate (10) of a first layer (11) of metal, (b) deposition on said first layer of metal of a first layer (12) of dielectric mechanically deformable and exhibiting a determined thickness (e 0 ), (c) deposition on said first dielectric layer of a second layer (13) of metal, (d) impression of the stack obtained by a mould applied over the whole of the surface of the stack and making it possible to simultaneously generate displacements of matter in at least two zones of the stack and to thus obtain, in said at least two zones, two different thicknesses (e 1 and e 2 ) of said first dielectric layer, these two thicknesses being different from the thickness (e 0 ) of this dielectric layer during step (b), (e) removal of the mould.
Abstract:
An imaging apparatus according to the present invention includes: a lens optical system L having a first optical region D1 and a second optical region D2 having a different optical power from that of the first optical region D1 ; an imaging device N having a plurality of pixels P1 , P2 ; and an array optical device K for causing light passing through the first optical region D1 to enter the pixel P1 and causing light passing through the second optical region D2 to enter the pixel P2 .
Abstract:
An optical sensor is described herein. By way of example, the optical sensor comprises a first light filter on a first light-receiving surface of an image sensor, and a second light filter on a second light-receiving surface of the image sensor. The second light-receiving surface is on an opposite side of the image sensor from the first light-receiving surface. The characteristics of the first light filter are different than characteristics of the second light filter.