Joseph E Lester

Title: Joseph E. Lester: Innovator in Lighting Technology

Introduction

Joseph E. Lester is an accomplished inventor based in Lincoln, MA, who has made significant contributions to the field of lighting technology. With a total of 11 patents to his name, he has demonstrated exceptional creativity and technical skill, specifically in the development of advanced incandescent and fluorescent lamps.

Latest Patents

Among his latest innovations, Joseph holds patents for an incandescent lamp that emits infrared light and a method of making the lamp. This groundbreaking design incorporates a filament assembly inside a polycrystalline aluminum oxide (PCA) envelope, featuring a coiled tungsten filament with solid metal ends made from tungsten or molybdenum. The leads extending from these ends are constructed from a thermally compatible electrically conductive material, such as niobium, helping to seal a suitable gas within the envelope using glass-ceramic sealing frits.

Additionally, Joseph has developed a fluorescent lamp amalgam assembly. This invention consists of a glass exhaust tubulation that leads toward the lamp base, which is securely closed. Within the tubulation, a retaining structure is situated to hold a mercury amalgam body that includes lithium, ensuring the amalgam adheres to the tubulation's internal surfaces. This innovative design prevents the amalgam from flowing past the retaining structure into the lamp envelope, enhancing the lamp's efficiency and safety.

Career Highlights

Joseph E. Lester has worked with notable companies such as Osram Sylvania Inc. and GTE Laboratories Incorporated, where he leveraged his expertise to push the boundaries of lighting technology and innovation. His work has significantly impacted the industry, paving the way for more efficient and effective lighting solutions.

Collaborations

Throughout his career, Joseph has collaborated with talented professionals, including Keith A. Klinedinst and Howard McKinzie. These partnerships have played a crucial role in the successful development of his patented technologies, combining expertise and creativity to foster innovation within the field.

Conclusion

Joseph E. Lester stands out as a pioneering inventor in the realm of lighting technologies. His contributions, evidenced by his numerous patents and collaboration with esteemed companies and colleagues, reflect his commitment to innovation and excellence in the field. With his continued focus on developing advanced lighting solutions, Joseph E. Lester remains a significant figure in the industry, pushing the envelope of what is possible in lighting technology.