Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

PhotoScribe Patents Diamond Assessment System
Jun 2014
NEW YORK, June 3, 2014 — A newly patented technology claims to quantify the beauty of diamonds by registering how they interact with light.

An enlarged, sectional view of an annular support for light sources facing a table of a gemstone.

PhotoScribe Technologies Inc. said its system, awarded U.S. Patent No. 8,705,018 B2, measures six attributes of light in a diamond:

• Brilliance: the total amount and intensity of light returned from the gemstone (i.e. efficiency).

• Fire: the total amount and intensity of colored light returned from the gemstone.

• Scintillation: the sparkle, or rapid change of reflected light seen when the diamond is viewed in motion.

• Contrast: the intensity of the bright light returned when compared to the intensity of the non-returned or black area.

• Optical symmetry: the measurement of the balance of light returning from facets facing each other around an axis.

• Coverage: the percentage of the diamond that will return light to the viewer from any angle of illumination.

"A more visually active gemstone is deemed more valuable than a less visually active gemstone, even with the same cut, carat weight, clarity and color," according to the patent.

PhotoScribe designs and builds turn-key laser systems for micromarking and micromachining, including its “cold” excimer lasers for diamond and gemstone inscription.

For more information, visit

AmericasBusinessConsumerdiamondlight sourcesmaterialsopticspatentTest & MeasurementPhotoScribe Technologieslasers

Terms & Conditions Privacy Policy About Us Contact Us
back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2019 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,

Photonics Media, Laurin Publishing
x We deliver – right to your inbox. Subscribe FREE to our newsletters.
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.