Herman L Matthe

Title: Herman L. Matthe: Innovator in Photographic Processing

Introduction

Herman L. Matthe is a notable inventor based in Zoersel, Belgium. He has made significant contributions to the field of photographic processing, holding a total of 2 patents. His work focuses on innovative methods that enhance the quality and efficiency of photographic image production.

Latest Patents

One of his latest patents is titled "Silver complex diffusion transfer processing." This method involves the production of a photographic image using a negative working silver halide emulsion material that boasts a particularly high exposure latitude. The material can be manipulated under room light conditions without causing prohibitive fogging. It features a low intensity reciprocity failure (L.I.R.F) and is contact-exposed with visible light through a sheet support carrying paper paste-up material. The resulting latent image is developed in the presence of a silver halide complexing agent, ultimately forming a planographic printing plate.

Another significant patent by Matthe is related to "Surface-treated vinyl chloride polymer material including an adhering." This invention improves the adherence of a hydrophilic layer containing a hydrophilic colloid binder on the surface of a vinyl chloride polymer that is free of hydrophilic recurring units. The improvement is achieved by exposing the polymer surface to a corona discharge, which satisfies a specific wetting test. Additionally, colloidal silica is dispersed within the hydrophilic layer in a weight ratio range relative to the binder of 1:5-2:1.

Career Highlights

Herman L. Matthe is associated with Agfa Gevaert NV, a company known for its innovations in imaging technology. His work at Agfa has allowed him to contribute to advancements in photographic processing techniques.

Collaborations

Throughout his career, Matthe has collaborated with notable colleagues, including Lucien J. Van Gossum and Ludovicus Maria Mertens. These collaborations have further enriched his contributions to the field.

Conclusion

Herman L. Matthe's innovative work in photographic processing has led to significant advancements in the industry. His patents reflect a deep understanding of the technical challenges in imaging technology, making him a valuable contributor to the field.