Arie Koelewijn

Title: Arie Koelewijn: Innovator in Electric Lamp Technology

Introduction

Arie Koelewijn is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of electric lamp technology. His innovative designs have led to advancements in the efficiency and functionality of electric lamps.

Latest Patents

Koelewijn holds a patent for an electric lamp that features a hermetically sealed gas-filled hard-glass or vitreous-silica lamp envelope. This lamp is equipped with a current lead-in that is sealed into a portion of the lamp envelope. The current lead-in comprises a foil primarily made of molybdenum and a current supply lead mainly consisting of tungsten. This lead extends into the lamp envelope and is secured to the foil by a welded joint. The welded joint contains iron or an alloy with at least 50% by weight of iron, along with elements such as scandium, titanium, vanadium, chromium, manganese, cobalt, nickel, and copper as the welding agent. This innovative design enhances the durability and performance of electric lamps.

Career Highlights

Arie Koelewijn is associated with U.S. Philips Corporation, where he has contributed to various projects and innovations in lighting technology. His work has been instrumental in developing advanced electric lamp solutions that meet modern energy efficiency standards.

Collaborations

Throughout his career, Koelewijn has collaborated with notable colleagues, including Gustaaf A Wesselink and Hendrik Roelofs. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Arie Koelewijn's contributions to electric lamp technology exemplify the spirit of innovation. His patented designs continue to influence the industry, showcasing the importance of research and development in creating efficient lighting solutions.