Abstract:
L'invention concerne un dispositif, de mesure de l'intensité lumineuse d'un objet ou partie d'objet (4). Il comporte une partie centrale dioptrique (3) et une partie périphérique catadioptrique (2) indépendantes l'une de l'autre et adaptées à générer, à partir de la lumière diffusée par l'objet (4), deux faisceaux de même nature et ne se croisant pas, et un capteur vidéo (7) spatial associé à un dispositif d'imagerie (6) pour obtenir une image de ces faisceaux.
Abstract:
An illumination device which provides illumination or foreground illumination in a sorting or classifying apparatus, the illumination device comprising a reflector (61) which has a reflecting surface (63) providing a reflection envelope, a first light source (70) which is disposed in spaced relation in front of the reflecting surface (63) and provides light of a first spectral output to the reflecting surface (63) for reflection thereby, and a second light source (71) which is disposed in spaced relation in front of the reflecting surface (63) and provides light of a second spectral output, different to the first spectral output to the reflecting surface (63) for reflection thereby, optionally the first light source (70) is a source of near infra-red (NIR) light and the second light source (71) is a source of visible-spectrum light.
Abstract:
The invention relates to a device which is used to measure the light intensity of an object or part of an object (4). The inventive device comprises: a central dioptric part (3) and a peripheral catadioptric part (2) which are independent of each other and which can generate two non-intersecting, same-type beams from the light diffused by the object (4); and a spatial video sensor (7) which is connected to an imaging device (6) in order to produce an image of said beams.
Abstract:
The present invention provides a method and system to correct for angular spread within an HDR used to determine IR optical constants. An algorithm simulates the transmission and polarized reflection actually observed. This is achieved by averaging power scattering over an angular spread corresponding to the size of the HDR mirror. Such an algorithm may incorporate corrections for angular spread that may be used to determine the thickness of a film (coating) as well as the optical constants of the film or coating on low loss ranges.
Abstract:
A sensor head is described herein. The sensor head can include a first piece, where the first piece can include a body having an outer surface and an inner surface. The first piece can also include a light source cavity disposed in the body at the inner surface. The first piece can further include an optical device cavity disposed in the body at the inner surface. The first piece can also include an ellipsoidal cavity disposed in the body at the inner surface, where the ellipsoidal cavity is disposed adjacent to the optical device cavity. The first piece can further include a receiving device cavity disposed in the body adjacent to the inner surface that forms the ellipsoidal cavity. The first piece can also include at least one channel disposed in the body.