Hendricus Franciscus Van Tongeren

Title: Hendricus Franciscus Van Tongeren: Innovator in Gas and Vapor Discharge Lamps

Introduction

Hendricus Franciscus Van Tongeren is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of gas and vapor discharge lamps. With a total of 3 patents to his name, Van Tongeren has demonstrated a commitment to innovation and technological advancement.

Latest Patents

His latest patents include an arrangement featuring a gas and/or vapor discharge lamp. This device operates a low-pressure sodium vapor discharge lamp without the need for a ballast. The electrode voltage drop near the main electrode of the sodium lamp is influenced by changes in the pre-heating current and the effective area of the electrode. This mechanism allows for ballast-free lamp operation by opposing changes in the lamp current. Another significant invention is a gas-and/or vapor discharge lamp that includes a discharge tube enveloped by an outer bulb. The heat insulation in the space between these components can be altered using a reversible hydrogen getter. This innovation enables the lamp to operate without a stabilizing ballast or to be less sensitive to variations in the mains supply.

Career Highlights

Hendricus Franciscus Van Tongeren 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 enhancing the efficiency and functionality of discharge lamps.

Collaborations

Some of his notable coworkers include Jean J Heuvelmans and Jan Evert Van Der Werf. Their collaborative efforts have further advanced the field of lighting technology.

Conclusion

Hendricus Franciscus Van Tongeren's contributions to gas and vapor discharge lamps highlight his innovative spirit and dedication to improving lighting technology. His patents reflect a deep understanding of electrical engineering and a commitment to creating efficient solutions.