Company Filing History:
Years Active: 1983-1992
Title: The Innovations of Johannes H. Van Der Sande: A Pioneer in High-Pressure Sodium Discharge Lamps
Introduction
Johannes H. Van Der Sande is an esteemed inventor based in Eindhoven, NL, renowned for his contributions to the field of lighting technology. With a total of three patents to his name, he has significantly advanced the efficiency and quality of high-pressure sodium discharge lamps, which are widely used in various lighting applications.
Latest Patents
One of his most notable patents involves a high-pressure sodium discharge lamp designed to radiate white light under nominal operating conditions, achieving a maximum color rendering index R_a of more than 80. This inventive lamp can reach a color temperature T_c of at least 2800 K with a luminous efficacy exceeding 40 lm/W, demonstrating Van Der Sande's focus on both performance and energy efficiency.
Another recent invention is a high-pressure sodium discharge lamp with a nominal power of at most 50 W. This lamp features an elongate ceramic vessel with a constant inner diameter and wall thickness, engineered for optimized light emission. Under operation, it emits light with a color temperature of at least 2250 K, showcasing significant advancements in lighting design.
Career Highlights
Van Der Sande has dedicated his career to light and illumination technologies while working at U.S. Philips Corporation. His innovative approaches have led not only to his patents but also to improvements in the quality of lighting that impacts various industries, from street lighting to agricultural applications.
Collaborations
Throughout his career, Johannes H. Van Der Sande has worked alongside notable colleagues, including Franciscus G. Sools and Ronald J. Campbell. Their collaborations have fostered a creative environment that spurs further innovation and development in the field of lighting technology.
Conclusion
Johannes H. Van Der Sande’s contributions to the invention of high-pressure sodium discharge lamps illustrate the importance of innovation in improving everyday technologies. His patents reflect a commitment to enhancing light quality and energy efficiency, positioning him as a prominent figure in the field of lighting engineering. As the industry continues to evolve, Van Der Sande's inventive spirit serves as an inspiring example for future inventors and innovators.