Herman F Van Heek

Title: Herman F Van Heek: Innovator in Piezoelectric Devices and Display Technology

Introduction

Herman F Van Heek is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the fields of piezoelectric devices and display technology. With a total of 5 patents to his name, Van Heek's work has had a lasting impact on various technological advancements.

Latest Patents

One of his latest patents is a piezoelectric device with a high, constant preload force. This innovative device comprises a number of polarizable ceramic plates stacked with intermediate metal plates that serve as electrodes. The stack is subjected to a large amount of preload by a preloading element, which has a relatively flat spring-force characteristic over the piezoelectric operating range. The design includes a cylindrical housing with two sets of parallel pairs of slots, rotationally displaced by 90 degrees, allowing the preloading force to be applied effectively. The ceramic plates are polarized only after assembly and preloading.

Another significant patent is for a color display tube with a shadow mask featuring elongated apertures. In this design, the bridges between apertures located at the edge of the shadow mask are made at least 20% wider than the others. The width of the bridges increases linearly from row to row from the center to the edge of the mask, resulting in a continuously varying brightness distribution. The reproduction mask used in the fabrication of such a shadow mask can be made photographically by exposing photosensitive material through a pattern of bridges, rotating the pattern, and repeating the exposure.

Career Highlights

Herman F Van Heek has worked at U.S. Philips Corporation, where he has been able to apply his innovative ideas and contribute to the company's technological advancements. His work has been recognized within the industry, and he continues to be a prominent figure in his field.

Collaborations

Throughout his career, Van Heek has collaborated with notable coworkers such as Leonardus A Elshof and David J Perduijn. These collaborations have further enriched his work and contributed to the development of innovative technologies.

Conclusion

Herman F Van Heek is a distinguished inventor whose contributions to piezoelectric devices and display technology have made a significant impact. His innovative patents and collaborations highlight his dedication to advancing technology.