Company Filing History:
Years Active: 1978-1990
Title: Innovations of Peter A Tielemans
Introduction
Peter A Tielemans is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of high-pressure sodium vapor discharge lamps. With a total of 5 patents, his work has advanced the technology used in lighting solutions.
Latest Patents
One of his latest inventions is the Emitterless SDN electrode. This invention relates to a high-pressure sodium vapor discharge lamp that features a ceramic discharge vessel. The discharge vessel contains sodium, and possibly mercury, along with a rare gas. An electrode made of refractory metal is housed within the discharge vessel. The design ensures that the electrode is free from alkaline earth metals, maintaining a temperature between 2400 K and 2700 K during operation. This innovation prevents the disappearance of sodium caused by the electrode material.
Another significant patent is the high-pressure sodium vapor discharge lamp itself. This lamp contains an electron-emitting material made up of alkaline earth metals bound to oxygen and tungsten bound to oxygen. It has been observed that lamps under 400 W, which have a high Hg/Na ratio or utilize neon/argon as a starter gas, tend to fail prematurely when the alkaline earth metals and tungsten are present in stoichiometric quantities. The free ends of the electrodes in these lamps are wound with tungsten wire, and the electron-emitting material comprises barium, strontium, and calcium bound to oxygen, along with tungsten bound to oxygen. The molar ratio of these components is maintained between 8 and 50.
Career Highlights
Peter A Tielemans is associated with U.S. Philips Corporation, where he has been instrumental in developing innovative lighting technologies. His work has not only contributed to the company's portfolio but has also impacted the broader field of electrical engineering.
Collaborations
He has collaborated with notable coworkers such as Cornelis A Jacobs and Gijsbert H Kuus, further enhancing the innovative efforts at U.S. Philips Corporation.
Conclusion
Peter A Tielemans is a distinguished inventor whose contributions to high-pressure sodium vapor discharge lamps have paved the way for advancements in lighting technology. His innovative patents reflect a commitment to improving efficiency and performance in this field.
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