Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Centre National De La Recherche Scientifique

Universite Claude Bernard – Lyon1

Institut National Des Sciences Appliquees De Lyon

Ecole Centrale De Lyon

Cpe Lyon Formation Continue Et Recherche

Cpe Lyon

Gabriel Jobert

Cyrielle Monpeurt

Maryse Fournier

Salim Boutami

Mathieu Dupoy

Pierre Barritault

Christian Seassal

Cécile Jamois

Marine Beurrier-Bousquet

An optical particle detector is configured to simultaneously detect at least two particles within a useful detection volume. The detector includes a retina capable of receiving light rays scattered by the particles and a dark reticle interposed between the useful detection volume and the retina. The dark reticle includes at least one optical aperture allowing a passage towards the retina of a part of first scattered light rays and of a part of second scattered light rays, and an opaque surface on a periphery of the at least one aperture, preventing a passage towards the retina of another part of the first and second scattered light rays so as to project onto the retina first and second scattering diagrams separated from each other.

Optical particle detector

A light distribution device, for distributing light rays from an ancillary light source onto a scene to be lighted. The device includes a planar waveguide, a recess in the planar waveguide for injecting light rays into the planar waveguide, and a through opening in the planar waveguide for extracting light rays from the planar waveguide. In this way, light can be distributed over a large area, homogeneously and with a thin, easily manufactured device.

Light distribution device based on a planar waveguide

An optical particle detector including at least one channel intended to receive a fluid carrying at least one particle, and across which light rays are intended to pass such that the light rays are partially scattered by the at least one particle, a plurality of photodetectors capable of receiving said scattered light rays, wherein the detector includes at least one optical waveguide configured to collect, at least at one entrance of the waveguide, light rays that were not scattered by the at least one particle and having crossed the channel, and to reinject the unscattered light rays into the channel through at least one exit of the waveguide.

Optical particle detector and method of manufacturing the same

An optical component for an attenuated total reflection interferometric imaging device, which includes:

Optical component for an ATR interferometric imaging device

An optical component for an interferometric imaging device, which comprises:

Optical component for an interferometric imaging device

A particle detector including at least one channel intended to receive at least one fluid comprising particles and configured to receive at least one light beam emitted by a light source. The particle detector further including at least one photodetector network configured such that at least some photodetectors receive light beams emitted by the source and scattered by the particles present in the channel. The detector further comprises at least one optical system, each optical system s associated with a photodetector network and has at least one image focal plane and an optical axis. The detector is configured such that the image focal plane of the optical system is optically coupled to the photodetector network.

An optical detector for particles is provided, including: a channel configured to receive a fluid including at least one particle and to receive at least one incident light ray; a detection system including a plurality of photodetectors, each photodetector being configured to receive light rays coming from the channel and diffused by the at least one particle; and an angular filtering system including a plurality of angular filtering devices each associated with a photodetector of the plurality of photodetectors, each angular filtering device being configured to angularly filter the light rays coming from the channel before reception thereof by the photodetector with which it is associated.

Growing community of inventors

Grenoble, France

Gabriel Jobert