Patent ID: 8003951

Claim:
An optical radiation sensor system for detecting ultraviolet radiation from an ultraviolet radiation source, the system comprising: a housing having a distal portion for receiving ultraviolet radiation from the ultraviolet radiation source and a proximal portion; an ultraviolet radiation sensor element in communication with the proximal portion, the ultraviolet radiation sensor element configured to detect and respond to incident ultraviolet radiation received from the radiation source; and motive means configured to move the housing with respect to the ultraviolet radiation sensor element between at least a first position and a second position, a radiation pathway between the ultraviolet radiation source and the ultraviolet radiation sensor element being defined when the housing is in at least one of the first position and the second position; wherein movement of the housing with respect to the ultraviolet radiation sensor element causes a modification of intensity of ultraviolet radiation impinging on the ultraviolet radiation sensor element.