Dolan-jenner Industries, Inc.

Dolan-jenner

John Stark

Kurt Zwirner

A linear lighting system includes a rod made of a material such as glass surrounded by an outer layer of cladding of lower refractive index than the glass. The rod is ground flat on one side to produce a flat rough surface with the texture oriented transverse to the longitudinal axis of the rod. Light from a light source enters the rod at one end of the rod. As the light propagates down the rod, it is scattered by the rough flat surface. Some of the scattered light strikes the rounded surface at an angle which allows it to pass through the cladding and escape the rod, thus producing uniform linear lighting emitted from the round side of the rod.

Linear backlighting system and method

A backlighting system is comprised of a light source, a sensing portion and an imaging portion. The light source may be a linear backlight that has few hot spots and provides uniform lighting oriented primarily in a single dimension. Alternatively it may be an area backlight that provides backlighting in a uniform manner across two-dimensions. Furthermore, a line light source may be provided that provides a relatively large line source of light oriented almost exclusively in a single dimension. The imaging portion of the machine vision system preferably includes an element for homogenizing the received image onto the imaging array. The homogenization element may adopt either a dispersing approach or a condensing approach.

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Newton Upper Falls, MA, United States of America

John Stark