Joseph M Koemans

Title: Joseph M Koemans: Innovator in Cathode Ray Tube Technology

Introduction

Joseph M Koemans is a notable inventor based in Eindhoven, Netherlands. He is recognized for his contributions to the field of cathode ray tube technology. His innovative approach has led to the development of a unique patent that enhances the functionality of cathode ray tubes.

Latest Patents

Koemans holds a patent for a cathode ray tube with an inclined electrostatic field lens. This invention involves a cathode ray tube that comprises an extra electrode, which allows the electron beam to be concentrated on a diaphragm aperture. Simultaneously, this design enables a small predeflection of the electron beam. The extra electrode is tubular with oblique cut ends and is positioned between two other electrodes. When the extra electrode shares the same potential as the other two, it remains inoperative. However, when a suitable negative voltage pulse is applied to the extra electrode, the electron beam is slightly deflected and concentrated on the diaphragm aperture.

Career Highlights

Joseph M Koemans is associated with U.S. Philips Corporation, where he has made significant contributions to the field of electronics and display technology. His work has been instrumental in advancing the capabilities of cathode ray tubes, which have been widely used in various applications.

Collaborations

Koemans has collaborated with Erich E Himmelbauer, contributing to the development and refinement of his innovative technologies.

Conclusion

Joseph M Koemans is a distinguished inventor whose work in cathode ray tube technology has made a lasting impact. His innovative patent demonstrates his commitment to advancing electronic display technologies.