John Harden

Title: John Harden: Innovator in Optical Display Technology

Introduction

John Harden is an accomplished inventor based in Streetsboro, Ohio. He holds a patent for a groundbreaking optical display device that utilizes nanoparticles to reduce laser speckle. His innovative work has significant implications for the field of optical technology.

Latest Patents

Harden's notable patent is titled "Nanoparticle doped liquid crystal device for laser speckle reduction." This invention features a coherent light source that generates a coherent light beam across visible, ultraviolet, or infrared ranges. The device includes a liquid crystal component with a mixture of liquid crystals and nanoparticles, each with an average diameter of ≤ about 450 nm. When no voltage is applied, the device exhibits a first speckle contrast of ≥ about 0.28. However, when voltage is applied, the speckle contrast improves to ≤ about 0.2, and in some cases, it can be as low as ≤ about 0.03. This technology provides a method for effectively reducing speckle in optical devices.

Career Highlights

Throughout his career, John Harden has worked with notable organizations, including Gm Global Technology Operations LLC and Kent State University. His experience in these institutions has contributed to his expertise in optical technologies and innovations.

Collaborations

Harden has collaborated with esteemed colleagues such as Kai-Han Chang and Liang-Chy Chien. These partnerships have further enriched his work and contributed to advancements in the field.

Conclusion

John Harden's contributions to optical display technology through his innovative patent demonstrate his commitment to advancing the field. His work not only showcases his inventive spirit but also highlights the potential for future developments in optical devices.