David J Griffiths

Introduction

David J Griffiths, an accomplished inventor based in South Sutton, NH, has made significant contributions to the field of optics and electronics. With two patents to his name, Griffiths is recognized for advancements that enhance the testing and measurement capabilities of light-emitting devices.

Latest Patents

Griffiths' most recent inventions include two notable patents. The first is a “Prober for Testing Light-Emitting Devices on a Wafer.” This innovative prober enables precise measurement of the light output from digital devices that are integrally formed on a single wafer. It features a light-integrating sphere that is sequentially aligned with selected devices, allowing for individual activation and measurement of devices such as vertical cavity surface emitting lasers (VCSELs) and light-emitting diodes (LEDs).

The second patent, titled “Method of and Apparatus for Bispectral Fluorescence Colorimetry,” introduces a novel modular bench-top bispectral fluorescence colorimeter. This device is encapsulated in a self-contained housing that incorporates excitation and emission monochromators, preferably connected through fiber light guides. It is designed to accurately determine bispectral radiance factors that define the true color of fluorescent materials, providing diverse data presentation formats.

Career Highlights

David J Griffiths currently works at Labsphere, Inc., a company renowned for its role in the development of photometric standards and measurement solutions. His technical expertise and inventive prowess have proven invaluable in pushing the boundaries of light measurement technology.

Collaborations

Throughout his career, Griffiths has collaborated with notable professionals in his field, including Jonathan D Scheuch and Sean David Griffin. These collaborations have enriched his work and facilitated advancements in the optical testing industry.

Conclusion

David J Griffiths exemplifies the spirit of innovation in the realm of light-emitting device measurement and evaluation. His contributions through patented inventions not only highlight his ingenuity but also promise to enhance the efficiency and accuracy of testing technologies in various applications.