Patent ID: 9200957
Filing Date: 2015-12-01
Classification: G01J

Abstract:
1. A sensor for measuring ultraviolet (UV) radiation, the sensor comprising: a converter plate having an anterior side for receiving UV radiation, a posterior side opposite the anterior side, a perimeter, and an edge about the perimeter extending between the anterior side and the posterior side, the converter plate configured to fluoresce in response to the UV radiation incident on the converter plate; a retainer comprising a conical mirror and a frame, the conical mirror configured to couple with the converter plate about the perimeter, the frame comprising a blocker configured to absorb UV radiation propagating through the posterior side of the converter plate; and a detector coupled to the frame and positioned posteriorly from the blocker, the conical mirror further configured to direct a portion of the fluorescent light emitted from the edge of the converter plate around the blocker in the posterior direction to the detector, the detector configured to detect the fluorescent light from the converter plate and produce an electrical signal proportional to the magnitude of fluorescent light.