Company Filing History:
Years Active: 1999-2000
Title: Gerhard W Doell: Innovator in Electrodeless Projection Technology
Introduction
Gerhard W Doell is a notable inventor based in Beverly, MA (US), recognized for his contributions to the field of electrodeless projection technology. With a total of 3 patents, he has made significant advancements in high luminance lighting solutions.
Latest Patents
One of his latest patents is the "High luminance electrodeless projection lamp." This innovative lamp utilizes an Electrodeless High Intensity Discharge (EHID) system designed for projection applications. The lamp features a compact capsule with nominal dimensions of 2 mm I.D., 3 mm O.D., and 6 mm internal length. The constriction in the mid-portion of the capsule enhances the plasma density, resulting in a higher luminance at the arc's center. This design ensures a consistent focal point throughout the lamp's lifespan, as it operates without electrodes. Additionally, the arc tube is thickened near the constriction to facilitate effective heat transfer through the vitreous silica, thereby improving thermal conduction.
Another significant patent is the "High intensity electrodeless discharge lamp with particular metal halide." This EHID lamp is tailored for photo-optical applications, including videoprojection. It incorporates a specific chemical fill that vaporizes completely during operation, consisting of AlI.sub.3, InI, and an iodide of a metal selected from Th, Hf, and Zr. This unique composition enhances its utility as a light source for videoprojectors.
Career Highlights
Gerhard W Doell has been associated with Osram Sylvania Inc., where he has played a pivotal role in developing advanced lighting technologies. His work has significantly impacted the projection industry, leading to more efficient and effective lighting solutions.
Collaborations
Throughout his career, Gerhard has collaborated with esteemed colleagues, including Walter Peter Lapatovich and Robert K Smith. These partnerships have fostered innovation and contributed to the success of various projects.
Conclusion
Gerhard W Doell's contributions to electrodeless projection technology exemplify his commitment to innovation in lighting solutions. His patents reflect a deep understanding of the technical challenges in the field and a dedication to advancing the industry.