This inventor holds 3 USPTO granted patents. Top assignees: Ciba-Geigy Ag, Ciba-Geigy Corporation. Active years: 1988-1990.
Company Filing History:
Years Active: 1988-1990
Title: Alan Adshead: Innovator in Holography
Introduction
Alan Adshead is a notable inventor based in New Mills, GB. He has made significant contributions to the field of holography, holding a total of 3 patents. His innovative methods have advanced the preparation and application of holograms.
Latest Patents
Among his latest patents is a method for contact copying of reflection or volume holograms. This method involves mounting a transmission hologram in register with a portion of transparent photosensitive holographic material, utilizing a filter to eliminate zero-order light. The process includes directing a laser beam through a holographic optical element, which splits the beam into two, allowing both beams to scan over the surfaces of the transmission hologram and the holographic material. This intricate method ensures that the holographic image is accurately captured and fixed within the material.
Another significant patent by Adshead is a method of preparing a hologram. This process entails subjecting holographic material, primarily composed of silver halide emulsion with at least 80% bromide, to a holographic exposure. The exposed material is then developed in a silver halide developing solution, followed by a conversion of the developed silver to silver chloride using various bleaching agents. The final step involves fixing out the silver chloride, ensuring the integrity of the holographic image.
Career Highlights
Throughout his career, Alan Adshead has worked with prominent companies such as Ciba-Geigy AG and Ciba-Geigy Corporation. His experience in these organizations has contributed to his expertise in the field of holography and innovation.
Collaborations
Alan has collaborated with notable individuals in his field, including John A. Clark and David W. Butcher. These collaborations have likely enriched his work and expanded the impact of his inventions.
Conclusion
Alan Adshead's contributions to holography through his patents and collaborations highlight his role as an influential inventor. His innovative methods continue to shape the future of holographic technology.