3m Innovative Properties Company

Jennifer L Grace

Patrick Rene Destain

William E Phillips, Iii

Stephen J Willett

John E Duncan

Michael W O'Keefe

Tomasz A Pol

Alexander A Glinski

A projection subsystem includes a light engine that provides a collection lens, a collimator and at least one solid state light emitter. A projection lens assembly receives the image and provides a projection beam having a luminous flux level. The projection subsystem has a portability efficacy.

Optical projection subsystem

A light source module is provided comprising an emitter having at least one light emitting surface and an at least partially hollow integrating optic mounted over the emitting surface; where the index of refraction within the hollowed area is less then the index of the subsequent medium along the optical path. The integrating optic has a proximal end facing the emitting surface and a distal end facing away from the emitting surface. The distal end of the integrating optic is flat and has a rectangular aspect ratio which can differ from the aspect ratio of the emitter. One or more optical films and/or an optical component such as a collection lens can be adhered to the distal end of the integrating optic.

Integrating light source module

Growing community of inventors

Lakeside Park, KY, United States of America

Jennifer L Grace