Short range lidar apparatus having a flat spatial response

Details Short range lidar apparatus having a flat spatial response Short range lidar apparatus having a flat spatial response

G - Physics

01

S

G01S 17/88 (2006.01)

Patent

CA 2628027

A flat spatial response LIDAR apparatus for detecting particles within a short range is provided. The apparatus includes a light source projecting a light beam which is back-scattered by the particles to be detected. The back- scattered light is received, detected and analyzed. A spatial filter spatially filters the received back-scattered light in order to flatten the spatial response of the apparatus, so that a same concentration of particles at any distance within the short range will generate a signal of substantially the same intensity. This is for example accomplished by a properly profiled mask disposed in front of the detector, or a plurality of spatially distributed waveguides. As a result, the LIDAR apparatus can compensate for the 1/r2 dependence, or other dependences of the back-scattered light on the distancer.

L'invention concerne un appareil de type LIDAR à réponse spatiale plate permettant de détecter des particules à courte portée. Ledit appareil comprend une source de lumière projetant un faisceau lumineux rétrodiffusé par les particules à détecter. La lumière rétrodiffusée est reçue, détectée et analysée. Un filtre spatial filtre spatialement la lumière rétrodiffusée reçue afin d'aplanir la réponse de l'appareil, de sorte qu'une même concentration de particules à une distance quelconque dans la courte portée générera un signal sensiblement de la même intensité. On obtient ce résultat, par exemple, par disposition d'un masque correctement profilé devant un détecteur ou une pluralité de guides d'onde spatialement distribués. De ce fait, l'appareil de type LIDAR peut corriger le 1/r2 ou d'autres dépendances de la lumière rétrodiffusée sur la distance r.

Affiliated with

Also associated with

Rating

Short range lidar apparatus having a flat spatial response does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Short range lidar apparatus having a flat spatial response, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Short range lidar apparatus having a flat spatial response will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1789164