Jan Hendrik Duistermaat

Title: Jan Hendrik Duistermaat: Innovator in Display Technology

Introduction

Jan Hendrik Duistermaat is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of display technology, holding a total of 3 patents. His work primarily focuses on enhancing the performance of CRT display devices, particularly in challenging lighting conditions.

Latest Patents

One of his latest patents is a CRT display device designed for use in high ambient light. This innovative device includes an envelope with a faceplate that has a predetermined light transmissivity. It features a luminescent screen on the inner surface of the faceplate and electron beam producing means within the envelope. The design incorporates a neutral density transmissivity filter adjacent to the outer surface of the faceplate, ensuring that the total transmissivity remains between 10% and 30% under high ambient light conditions. Additionally, the electron beam producing means are engineered to produce a beam current density that maintains a contrast ratio between 4 and 8.

Another significant patent is a method for manufacturing the picture display screen of a color television. This involves an exposure device that establishes the phosphor dots of a shadow mask color television tube. The apertures in the shadow mask are optically projected from a light source onto a photosensitive layer on the window of the tube. A cylinder lens is strategically placed between the light source and the shadow mask to enhance the precision of the projection.

Career Highlights

Jan Hendrik Duistermaat is associated with U.S. Philips Corporation, a leading company in the electronics industry. His work has been instrumental in advancing display technologies, particularly in improving the visibility and performance of CRT displays.

Collaborations

Throughout his career, Duistermaat has collaborated with notable colleagues, including Jan Gerritsen and Constantius Johannes Panis. These collaborations have contributed to the development of innovative technologies in the field of display systems.

Conclusion

Jan Hendrik Duistermaat's contributions to display technology, particularly through his patents, have significantly impacted the industry. His innovative approaches to enhancing CRT display devices demonstrate his commitment to advancing technology in challenging environments.