Endoscopic equipment manufacturer Lighthouse Imaging Corp. of Portland, Maine, has announced that a key element of its Endolume testing device has been issued Patent No. 8040496 by the US Patent and Trademark Office. The patent is for the company’s Optical Bridge, which enables the Endolume to measure endoscopic light sources without a light cable, providing more accurate measurements. Endolume is a handheld device that measures the luminous intensity of endoscopic system light sources as well as light transmission through light cables and rigid or flexible endoscopes. It enables hospital engineering staff to quickly troubleshoot the illumination for endoscopic systems.