Company Filing History:
Years Active: 1990-1992
Title: The Innovations of Harley A. Perkins
Introduction
Harley A. Perkins is a notable inventor based in Brookline, MA (US). He has made significant contributions to the field of gyroscopic technology, holding a total of 3 patents. His work primarily focuses on advancements in ring laser gyroscopes and magnetic mirrors.
Latest Patents
One of Perkins' latest patents is titled "Ring laser gyro having two magnetic mirrors." This invention describes a method and apparatus for switchably controlling the bias of a ring laser angular rate sensor using two switchably controllable magnetic mirrors. The system is designed to operate effectively away from lock-in regions. For sensor input rates below a certain threshold, the control means energizes the magnetic mirrors to create an additive optical effect, biasing the rate sensor at a desired operating point. Conversely, for input rates at or above the threshold, the mirrors are energized to create a subtractive effect, allowing for biasing at a different operating point.
Another significant patent is "Ring laser gyro and magnetic mirror therefor." This invention details a laser gyroscope that is a sealed, unitary assembly of mirrors that are optically contacted to a monolithic gyro block. The mirrors are constructed with hard multilayer dielectric films that can withstand plasma exposure. Additionally, a magnetic mirror utilizing the transverse Kerr effect is included to separate the frequencies of counter-propagating beams and avoid lock-in. This design features a specially designed multilayer dielectric stack to suppress S mode oscillation, ensuring the gyro operates in P mode.
Career Highlights
Harley A. Perkins has had a distinguished career at Northrop Corporation, where he has been instrumental in developing advanced gyroscopic technologies. His innovative work has contributed to the company's reputation as a leader in aerospace and defense technologies.
Collaborations
Throughout his career, Perkins has collaborated with talented individuals such as Wah L. Lim and V. Warren Biricik. These collaborations have fostered an environment of innovation and creativity, leading to groundbreaking advancements in their respective fields.
Conclusion
Harley A. Perkins is a prominent inventor whose work in gyroscopic technology has led to significant advancements in the field. His patents reflect a deep understanding of complex systems and a commitment to innovation. His contributions continue to influence the industry and inspire future inventors.