John M Chapman

Title: John M Chapman: Innovator in Discharge Lamp Technology

Introduction

John M Chapman is a notable inventor based in Petersfield, GB. He has made significant contributions to the field of lighting technology, particularly through his innovative designs for discharge lamps. With a total of 4 patents to his name, Chapman has demonstrated a commitment to enhancing the efficiency and functionality of lighting solutions.

Latest Patents

Chapman's latest patents focus on the design of discharge lamps. One of his inventions provides an advantageous shape for the discharge tube, which is particularly beneficial for dimensions intended to replace general lighting service lamps. This design can be adapted to various sizes, making it versatile for different applications. The discharge tube is shaped to define a substantial part of the boundary of a substantially planar zone, with at least one straight portion. In one embodiment, it defines three sides of a square, with the ends of the tube being re-entrant into the fourth side. A support housing central to the zone holds the ends of the tube, providing additional support. This housing may also include circuit elements and offers electrical connections to the lamp, serving as a convenient handling point.

Another of his patents involves discharge lamps with curved sections and central connections. Similar to his previous invention, this design also aims to replace general lighting service lamps while being adaptable to other sizes. The innovative shape of the discharge tube continues to define a substantial part of the boundary of a planar zone, ensuring efficiency and effectiveness in lighting applications.

Career Highlights

John M Chapman is associated with Thorn EMI Plc, where he has contributed to the development of advanced lighting technologies. His work has been instrumental in pushing the boundaries of what is possible in the field of discharge lamps.

Collaborations

Chapman has collaborated with Basil Antonis, working together to innovate and improve lighting solutions. Their partnership has fostered a creative environment that encourages the development of new ideas and technologies.

Conclusion

John M Chapman is a distinguished inventor whose work in discharge lamp technology has made a significant impact on the industry. His innovative designs and patents reflect his dedication to improving lighting solutions for various applications.