Company Filing History:
Years Active: 1991
Title: Innovations of Joshau S Zhu in Fluorescent Lamp Technology.
Introduction
Joshau S Zhu is an accomplished inventor based in Torrance, CA. He has made significant contributions to the field of lighting technology, particularly in the development of advanced ballast systems for fluorescent lamps. His innovative approach has led to the creation of a unique dimming ballast system that enhances the functionality and efficiency of fluorescent lighting.
Latest Patents
Joshau S Zhu holds a patent for a "Remote control of fluorescent lamp ballast using power flow interruption." This invention allows for the control of light output from fluorescent lamps through a remote source. The system utilizes a voltage control feedback loop to regulate the ballast output voltage. The dimming function is achieved by varying the set point of the control loop. The remote control signal is coded by interrupting the current flow to the ballast for a short period. This signal is processed digitally by a microcomputer, which generates information to adjust the control set point. Additionally, the circuit means control the filament voltage of the fluorescent lamps, ensuring that as the lamps are dimmed, the filament voltage is maintained or slightly increased. This feature prolongs lamp life and stabilizes the light output.
Career Highlights
Joshau S Zhu is associated with Electronic Ballast Technology, Inc., where he has been instrumental in advancing lighting technology. His work has not only contributed to the efficiency of fluorescent lamps but has also paved the way for more sustainable lighting solutions.
Collaborations
Throughout his career, Joshau has collaborated with notable colleagues, including Feng-Kang Hu and Chung M Lau. These partnerships have fostered innovation and have been crucial in the development of his patented technologies.
Conclusion
Joshau S Zhu's contributions to fluorescent lamp technology exemplify the impact of innovative thinking in the field of lighting. His patent for a remote-controlled dimming ballast system showcases his commitment to enhancing energy efficiency and prolonging the life of lighting systems. His work continues to influence the industry and inspire future innovations.