T Stewart McKechnie

Title: T Stewart McKechnie: Innovator in Fresnel Lens Technology

Introduction

T Stewart McKechnie is a notable inventor based in Ossining, NY (US). He has made significant contributions to the field of optical technology, particularly in the design of Fresnel lenses for projection screens. His innovative approach has led to advancements that enhance the efficiency of these optical devices.

Latest Patents

McKechnie holds a patent for an invention titled "Optimum riser angle for Fresnel lenses in projection screens." This patent describes a Fresnel lens designed for use in rear projection screens. The lens features a plurality of facets that face away from the light source, each having an optimal riser angle. This angle varies from the center to the outer edge of the lens based on several factors, including focal length, refractive index, angular subtense of the exit pupil, and radial distance from the center of the lens. This innovation significantly improves the efficiency of the Fresnel lens.

Career Highlights

McKechnie is associated with North American Philips Corporation, where he has applied his expertise in optical technology. His work has contributed to the development of advanced projection systems that are widely used in various applications.

Collaborations

One of McKechnie's notable collaborators is Jill F Goldenberg. Their partnership has likely fostered innovative ideas and solutions in the field of optical technology.

Conclusion

T Stewart McKechnie's contributions to Fresnel lens technology exemplify the impact of innovative thinking in the field of optics. His patent and work at North American Philips Corporation highlight his role as a significant inventor in this area.