James W Riley

Title: **Innovator James W. Riley: Mastering Optical Filters**

Introduction

James W. Riley, based in Inver Grove Heights, Minnesota, is a notable inventor recognized for his impactful contributions in the field of optical technologies. With a total of two patents to his name, Riley has demonstrated a commitment to innovation and technological advancement, particularly in the creation of optical filters designed for specialized applications.

Latest Patents

Among his latest groundbreaking inventions, Riley has developed novel optical filters for manipulating spectral power distribution in accelerated weathering devices. These filters are tailored to closely replicate sunlight, displaying durability and stability even when subjected to extreme light intensity, temperature fluctuations, and moisture exposure over extended periods. The optical filter comprises a glass with a lead content that ranges between 0.5% to 50% by weight, and can be fabricated in thicknesses from 0.7 mm to 10 mm. This invention also includes an optical filter assembly which incorporates a lead glass optical filter along with an ultraviolet transmissive optical filter, primarily constructed from quartz glass. This assembly may also feature an infrared absorbing coating, enhancing its functionality and performance.

Further enhancing the innovation, Riley's optical filter design considers specific irradiance ratios. The first ratio compares total irradiance for wavelengths shorter than 290 nm to that for wavelengths between 300 nm to 400 nm, ensuring it remains less than a threshold of 2.0×10. The second ratio focuses on irradiance at 310 nm relative to the second total irradiance, setting a minimum benchmark of 1.2×10.

Career Highlights

James W. Riley has established a successful career at 3M Innovative Properties Company, where he leverages his expertise to drive innovation forward. His role involves significant research and development efforts, particularly in optical technologies, showcasing his ability to translate scientific concepts into practical applications.

Collaborations

Throughout his career, Riley has worked closely with talented colleagues, including Richard M. Fischer, Jr. and Bradley D. Guth. This collaborative spirit fosters an environment of creativity and progressive thinking, contributing to the development of cutting-edge technologies.

Conclusion

In summary, James W. Riley stands out as a prominent figure in the field of optical innovation. His contributions, particularly through his latest patents, underscore the importance of advanced optical filters in contemporary research and technology. As he continues his work at 3M Innovative Properties Company, Riley is poised to further impact the industry with his inventive spirit and collaborative efforts.