Honeywell International Inc.

Alliedsignal Inc.

Waltraud Rosalie Unger

Jerry W Kuper

Scott Moore Zimmerman

Janpu Hou

Tim Chin

Jerry Wayne Kuper

The reflectivity of a substrate can be improved by combining a reflective diffuse layer with a specular layer. The light output of individual light sources can be improved by embedding them in a composite diffuse and specular substrate resulting in a superior illumination source. A tapered coupling waveguide having a large input surface can be used to couple the illumination source to a thin waveguide having a relatively small input surface area.

Illumination sources and systems

The light output of a back-coupled illumination system is improved by recycling reflected and misdirected light rays. A reflector at the light source and an array of microprisms having reflective elements therebetween efficiently redirect errant light rays to increase the total available light output and improve efficiency. Both specular and diffuse reflective materials may be used in combination to enhance light output.

Back-coupled illumination system with light recycling

Growing community of inventors

Bergen, NJ, United States of America

Waltraud Rosalie Unger