Robertus A Keyser

Title: Innovations by Robertus A Keyser in High-Pressure Discharge Lamp Technology

Introduction

Roberts A Keyser is a notable inventor based in Veldhoven, Netherlands, with a remarkable contribution to the field of high-pressure discharge lamp technologies. With a total of three patents to his name, Keyser has demonstrated a commitment to advancing lighting solutions, significantly enhancing performance and efficiency.

Latest Patents

Keyser's latest innovations include two groundbreaking patents:

1. **Integrated HID reflector lamp with HID arc tube in a pressed glass**: This integrated reflector lamp features a sealed envelope that encompasses a high-pressure gas discharge device. The design includes a shell with a rim portion that receives the sealed envelope and a basal portion equipped with a screw base. The enclosed ballast ignites and operates the discharge device, while the reflective surface in the envelope efficiently directs light and manages heat generated by the discharge device, preventing overheating of the ballast. This innovative lamp surpasses the photometrics and luminous efficacy of traditional halogen and halogen IR reflector lamps, fitting seamlessly within ANSI outlines for PAR 38 lamps.

2. **High frequency HID lamp system**: This system incorporates a high-pressure gas discharge lamp designed to operate at frequencies above 19 kHz, thereby avoiding acoustic resonance. The ballast circuit energizes the discharge device while simplifying production costs. An innovative aspect of this patent is the ability to operate multiple discharge devices concurrently, significantly increasing light output while maintaining efficient operation.

Career Highlights

Roberts A Keyser has made significant strides in his career, particularly through his association with Philips Electronics North America Corporation. His dedication to research and development in the field of lighting technology has positioned him as a recognized expert within the industry.

Collaborations

Keyser has collaborated with notable colleagues such as Dale E Work and Mark W Fellows. These professional associations have contributed to the dynamic advancements in lighting technology that Keyser is known for today.

Conclusion

With his innovative designs and patents, Robertus A Keyser continues to impact the world of lighting technology profoundly. His contributions are not only pivotal in advancing high-pressure discharge lamps but also in enhancing energy efficiency and performance in lighting applications.