Company Filing History:
Years Active: 2007-2009
Title: Innovations by Robert H. Holman in LED Technology
Introduction
Robert H. Holman is a notable inventor based in Evanston, IL (US). He has made significant contributions to the field of LED technology, holding 2 patents that focus on innovative optical techniques for light mixing and illumination.
Latest Patents
One of Holman's latest patents is for a "Compact mixing cavity for multiple colors of LEDs." This invention utilizes an elongated mixing tunnel with a reflective inner surface to mix different light colors from various LEDs or energized phosphors. The design includes an angled dichroic mirror that selectively reflects incoming color light towards a single output port while allowing other colors to pass through. This method enables the use of two, three, or more colors of LEDs efficiently.
Another significant patent is titled "Illuminators using reflective optics with recycling and color mixing." This patent describes various optical techniques to achieve a specified light output from an LED source. A parabolic reflector surrounds the LED or LED array to create a collimated beam. The design includes a reflective disc that defines the light exit opening, reflecting any generated light outside the opening back into the parabolic reflector until it exits through the desired opening. This invention also incorporates a mixing tunnel with angled dichroic mirrors or polarizer mirrors to enhance color mixing.
Career Highlights
Robert H. Holman is currently associated with Philips Lumileds Lighting Company LLC, where he continues to innovate in the field of lighting technology. His work has significantly impacted the efficiency and effectiveness of LED lighting solutions.
Collaborations
Holman has collaborated with notable coworkers such as Gerard Harbers and Laurie Scheffel, contributing to advancements in LED technology and optical techniques.
Conclusion
Robert H. Holman's contributions to LED technology through his innovative patents demonstrate his commitment to enhancing lighting solutions. His work continues to influence the industry and pave the way for future advancements in optical technologies.