Company Filing History:
5 out of 21,376 
1 out of 14,087 
Years Active: 2000-2008
Title: The Innovations of Fransiscus Arnoldus Vermeulen
Introduction
Fransiscus Arnoldus Vermeulen is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of lighting technology, holding a total of 6 patents. His work primarily focuses on methods and devices for enhancing the performance of metal halide lamps.
Latest Patents
One of his latest patents is a method and device for driving a metal halide lamp. This invention describes a technique that includes generating a light-controlling DC electric field with a desired direction and strength inside the lamp. This method allows for a desirable ion distribution within the lamp. The lamp is supplied with a commutating current that has a DC component, maintaining a constant current intensity with a duty cycle that differs from 50%. By adjusting the duty cycle, it is possible to influence the efficacy and color temperature of the lamp.
Another significant patent is related to a gas discharge lamp. This metal halide lamp is designed to ensure that, when operative in a vertical orientation, the location of the salt pool is close to the top of the discharge chamber. In this design, the coldest spot is also near the top of the discharge chamber. The lamp includes means to supply more heat to the bottom part than to the upper part, enhancing its performance.
Career Highlights
Fransiscus has worked with prominent companies in the lighting industry, including Koninklijke Philips Corporation N.V. and U.S. Philips Corporation. His experience in these organizations has contributed to his expertise in lamp technology and innovation.
Collaborations
Throughout his career, Fransiscus has collaborated with notable colleagues such as Josephus Christiaan Maria Hendricx and Joseph Leonardus Gregorius Suijker. These collaborations have likely enriched his work and led to further advancements in his field.
Conclusion
Fransiscus Arnoldus Vermeulen is a distinguished inventor whose contributions to lighting technology have made a significant impact. His innovative patents and collaborations reflect his dedication to advancing the field of metal halide lamps.