Thomas Scott Hemphill

Title: Thomas Scott Hemphill: Innovator in Gemstone Evaluation Technologies

Introduction

Thomas Scott Hemphill, based in Lexington, Massachusetts, is a notable inventor with a keen focus on gemstone evaluation technologies. Holding three patents, Hemphill's contributions have significantly advanced the methods used in assessing colored gemstones and understanding the intricacies of diamond cuts.

Latest Patents

Among Hemphill's latest patents is the "Fast UV-VIS-NIR Absorption Spectrometer System and Method." This innovative system is designed to evaluate a colored gemstone that has been cooled to a specific temperature. The solution includes a cooling unit to support and chill the gemstone, an electromagnetic radiation source, a spectrometer, an integrating sphere, and a processing unit. The methodology involves receiving a spectral response and sampling the noise within the spectral range, allowing for accurate baseline determinations. This invention aids in identifying designated peaks in the gemstone's spectral response, determining whether further evaluation is necessary.

Another significant patent pertains to "Systems and Methods for Evaluating the Appearance of a Gemstone." This application introduces a three-dimensional mathematical model that studies light interaction with a fully faceted, colorless, symmetrical round-brilliant-cut diamond. The model analyzes various appearance factors, such as brilliance, fire, and scintillation, depending on diamond cut proportions. Through this innovation, Hemphill provides a tool for assessing and grading diamond cuts, addressing historical complexities in cut evaluations.

Career Highlights

Thomas Scott Hemphill is currently associated with the Gemological Institute of America, Inc., a leading organization dedicated to gemological research and education. His work at this esteemed institution underscores his commitment to improving gemstone evaluation through innovative technologies.

Collaborations

Throughout his career, Hemphill has collaborated with esteemed colleagues, including Ilene M. Reinitz and Mary L. Johnson. Together, they have contributed to advancements in gemstone evaluation methods and have fostered a collaborative environment that enhances research and innovation in the field.

Conclusion

Thomas Scott Hemphill stands out as an influential inventor in the realm of gemstone technology. His innovative patents and collaborations mark significant advancements in assessing and understanding gemstones, particularly in the complex areas of color evaluation and diamond cuts. With continued innovation and dedication, Hemphill's contributions will undoubtedly influence future developments in gemology.