Company Filing History:
3 out of 3 
1 out of 832,718 Years Active: 1996-2020
Title: Joseph Van Der Gracht: Innovator in Far Field Viewing Devices
Introduction
Joseph Van Der Gracht is a notable inventor based in Columbia, MD (US). He has made significant contributions to the field of holographic technology, particularly in the development of far field viewing devices. With a total of 4 patents to his name, his work focuses on enhancing the quality and performance of holographic light patterns.
Latest Patents
One of his latest patents is titled "Far field viewing devices for minimal spurious image noise." This invention provides systems, methods, and devices related to far field hologram viewing. It includes a method for designing and manufacturing a far field hologram that produces holographic light patterns with minimal spurious pixel errors. This is achieved without requiring tight tolerances on the relative positions of the hologram and an observer's eye. The invention also features far field viewing devices that utilize multiple unit holograms, each with differing noise characteristics, to reduce the effects of spurious pixel errors while maintaining good overall noise performance.
Another significant patent is "Controlled diffraction efficiency far field viewing devices." This invention focuses on the design of optimized far field viewing devices that produce bright holographic light patterns while achieving good see-through performance. The far field transmission hologram is recorded on a transparent substrate, featuring regions of high diffraction efficiency juxtaposed with regions of low diffraction efficiency. The high diffraction efficiency regions contribute to bright holographic light patterns, while the low diffraction efficiency regions enhance see-through performance.
Career Highlights
Throughout his career, Joseph Van Der Gracht has worked with various companies, including Holospex, Inc. His innovative work has positioned him as a key figure in the development of advanced holographic technologies.
Collaborations
Joseph has collaborated with notable professionals in his field, including Ravindra A Athale. Their joint efforts have contributed to the advancement of holographic viewing technologies.
Conclusion
Joseph Van Der Gracht is a distinguished inventor whose work in far field viewing devices has significantly impacted the field of holography. His innovative patents demonstrate his commitment to enhancing the performance and quality of holographic technologies.
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