Company Filing History:
Years Active: 2006-2010
Title: Innovations by Mary L Johnson
Introduction
Mary L Johnson is a notable inventor based in San Diego, California. She has made significant contributions to the field of gemology, particularly in the evaluation and observation of gemstones. With a total of four patents to her name, her work has advanced the understanding of how light interacts with gemstones.
Latest Patents
One of her latest patents is titled "Systems and methods for evaluating the appearance of a gemstone." This invention presents a three-dimensional mathematical model to study the interaction of light with a fully faceted, colorless, symmetrical round-brilliant-cut diamond. The model allows for the analysis of various appearance factors, such as brilliance, fire, and scintillation, depending on proportions. It generates images and numerical measurements of the optical efficiency of diamonds, providing valuable insights into cut grades and analyses for prospective diamond rough.
Another significant patent is the "Apparatus and method for providing spot lighting for gemstone observation." This invention offers a system and method for providing spot lighting that enhances the observation of a gemstone's fire, which is the visible effect of light dispersion into separate colors. The apparatus includes a tube that receives a portion of a multi-spectral light source, along with a mask to block other light portions. By aligning the tube with both the light source and the gemstone, the invention isolates and accentuates the effects of fire.
Career Highlights
Mary L Johnson is associated with the Gemological Institute of America, Inc., where she applies her expertise in gemology and innovation. Her work has been instrumental in developing new methods for evaluating gemstones, which has had a lasting impact on the industry.
Collaborations
Some of her notable coworkers include Ilene M Reinitz and James E Shigley, who have also contributed to advancements in gemology.
Conclusion
Mary L Johnson's innovative patents and contributions to the field of gemology highlight her role as a leading inventor in the industry. Her work continues to influence how gemstones are evaluated and observed, showcasing the importance of innovation in this specialized field.