Illumination Device for Inspecting Window Surfaces

A special-purpose fiber-optic illumination device can be attached temporarily to a window to help an inspector examine window surfaces for scratches, pits, small-scale roughness, and dirt. This device was developed to replace an older fiber-optic illumination device that provided intense illumination to an area not much larger than the cross section of the fiber-optic light guide, had to be scanned manually over the entire window surface to complete an inspection, and often caused bright light to be reflected directly into the inspector's eyes during maneuvers ancillary to scanning. The present device illuminates a much larger area, does not shine bright light into the inspector's eyes, and leaves the inspector's hands free.