Gregory Um

Title: The Innovative Contributions of Gregory Um

Introduction

Gregory Um is a prominent inventor based in Torrance, California, known for his significant contributions to the field of thin film actuated mirror technology. With a total of 16 patents to his name, Um has made remarkable advancements that enhance the functionality and efficiency of optical devices.

Latest Patents

One of his latest patents is the "Monomorph Thin Film Actuated Mirror Array." This invention features a thin film actuated mirror that includes a substrate, a deformable structure, and a mirror surface that tilts in response to the deformation of the material layer. The deformation is achieved through an effective strain gradient across the monomorph thickness, which is controlled by varying the electric field. The active material layer is made from a semi-conductive ferroelectric ceramic material, with metal electrodes mounted on opposing surfaces. An electrical signal applied across the active material causes deformation, enabling precise control of the mirror surface.

Another notable patent is the "Thin Film Actuated Mirror Array for Providing Double Tilt Angle." This invention comprises a pedestal and a piezoelectric structure that allows the mirror surface to tilt based on the deformation of the piezoelectric material layer. The piezoelectric structure is divided into two portions, each mounted to different sections of the pedestal. This design enhances the mirror's functionality, making it suitable for various applications.

Career Highlights

Throughout his career, Gregory Um has worked with several notable companies, including Aura Systems Inc. and Daewoo Electronics Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

Um has collaborated with talented individuals such as Andrei Szilagyi and Jeong B Ji, further enriching his work and expanding the scope of his inventions.

Conclusion

Gregory Um's contributions to the field of thin film actuated mirrors demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a deep understanding of material science and engineering, positioning him as a key figure in the industry.