Patent ID: 9258535
Filing Date: 2016-02-09
CPC Classification: G02B,G06T,H04N

Claim Text:
1. An intrinsically safe video inspection system, comprising: a video display device; a cable conditioning module; a light source; an intrinsically safe camera assembly comprising low powered components and intrinsic safety protection circuitry; an interconnecting cable extending between said cable conditioning module and said intrinsically safe camera assembly; and a photovoltaic power system located within the intrinsically safe camera assembly; wherein said intrinsically safe camera assembly may be used in hazardous zones with a flammable and volatile atmosphere, and wherein said photovoltaic power system converts light received through the interconnecting cable into electrical energy to power the intrinsically safe camera assembly such that no electrical connections through the interconnecting cable or additional power sources are required to operate the intrinsically safe camera assembly, and wherein said intrinsic safety protection circuit further comprises redundant Zener diodes within said intrinsically safe camera assembly across signal lines to eliminate any over-voltage.