Patent Document ID: 8310544
Application ID: 12157911
Patent Flag: 1

Claim One:
1. A hand-held inspection tool, the tool comprising: a tool body, a sensing head connected to the tool body, the sensing head comprising: (a) a video camera; (b) a video camera lens fitted on the video camera and exposed on a face of the sensing head; (c) a spectral band pass video camera filter matrix comprising at least two video camera filters, the video camera filter matrix being configured so that each of the at least two video camera filters can selectively be positioned to cover the video camera lens, each of the video camera filters being structured to allow only a selected wave band of light to pass through the video camera filter to the video camera lens; and, (d) at least one excitation light disposed on the face of the sensing head, the at a video processor receiving and transmitting the video images from the video camera; a visual display receiving and displaying the images from the video processor; and, a hand grip for supporting the tool body and the sensing head; wherein an operator moves the inspection tool via the hand grip to the target contamination and directs the at least one light so that the fluorescence emitted by the target contamination is detected and transmitted by the video camera and shown on the visual display.