Company Filing History:
Years Active: 1978-1981
Title: John P Rahn: Innovator in Optical Technology
Introduction
John P Rahn is a notable inventor based in Ridgecrest, California. He has made significant contributions to the field of optical technology, particularly in the development of advanced scatterometer systems and tunable lasers. With a total of 3 patents to his name, Rahn's work has had a profound impact on the industry.
Latest Patents
Rahn's latest patents include innovative solutions that enhance the performance of optical devices. One of his key inventions is the "Stray light eliminator in a scatterometer." This technology effectively removes stray scattering in a scatterometer by utilizing a lens and aperture system in conjunction with a beamsplitter. The design allows backscattered light from a tested mirror to be deflected by the beamsplitter and focused onto a detector, significantly increasing the detected signal compared to noise caused by scattered light. Additionally, the system is refined with a cavity dumper, which absorbs stray light, ensuring minimal reflection back along the original incident light path.
Another notable patent is "Surface acoustic wave tuning for lasers." This invention introduces a tunable laser that employs surface acoustic waves within a piezoelectric prism to create two reflective diffraction gratings for tuning the resonant cavity. This advancement offers enhanced control over laser output, making it a valuable asset in various applications.
Career Highlights
John P Rahn is currently associated with the United States Navy, where he contributes his expertise in optical technology. His work has been instrumental in advancing the capabilities of optical measurement systems, which are crucial for various military and civilian applications.
Collaborations
Throughout his career, Rahn has collaborated with esteemed colleagues, including Marion L Scott and Richard Swart Hughes. These partnerships have fostered innovation and have led to the successful development of cutting-edge technologies.
Conclusion
John P Rahn's contributions to optical technology through his patents and collaborations highlight his role as a leading inventor in the field. His innovative solutions continue to influence advancements in optical measurement systems and tunable lasers.