Patent ID: 9500340
Filing Date: 2016-11-22
CPC Classification: A61B,A61C,F21K,F21V,F21W,F21Y,G02B

Claim Text:
1. A light for use in a dental examination setting for illuminating an oral cavity of a patient, the light comprising: a housing unit for connecting the light to an arm assembly for positioning the light within the dental examination setting; a plurality of light emitting diode (LED) light sources coupled to the housing unit for producing respective light beams along a plurality of respective paths, wherein the light beams combine to form a beam pattern in an illumination plane defined within an oral cavity of a patient; a plurality of collimating lenses each situated along one of the paths to receive the respective light beams from the plurality of LED light sources and to perform collimating action on the received light beams; a plurality of diffusers each situated along one of the paths to impose a divergence of between about 0.5 and about 5 degrees on the respective light beams from the plurality of collimating lenses; and a transparent shield coupled to the housing unit, situated to receive the light beams from the plurality of diffusers, and configured to spread the received light beams so as to elongate the beam pattern in the illumination plane in a direction parallel to a refraction axis of the shield; wherein the shield comprises a series of substantially parallel cylindrical convex lenses for spreading the received light beams; further wherein each of the cylindrical convex lenses has a width and a length, and the width is such that each light beam received from the plurality of diffusers is transmitted through more than one of the cylindrical convex lenses.