Apparatus for measuring diamond colors

Details Apparatus for measuring diamond colors Apparatus for measuring diamond colors

1982-06-18

1985-04-02

Evans, F. L.

Optics: measuring and testing

Crystal or gem examination

356244, G01J 350

Patent

active

045084491

ABSTRACT:
An apparatus for measuring the color of a brilliant-cut diamond, comprising a light source for providing a measuring light, a holder for holding the diamond to allow the measuring light to enter the diamond through a table facet thereof, a photodetector for detecting a light which has emerged from the diamond through its table facet, a measurement unit for measuring a spectrum of the detected light and an arithmetic unit for deriving tristimulus values from the spectrum.
The apparatus is of great practical advantage in that it can objectively measure the colors of brilliant-cut diamonds, and can produce measured outputs which can easily be converted to color grades of the type which has widely been used conventionally.

REFERENCES:
patent: 3867032 (1975-02-01), Bruck
patent: 4310249 (1982-01-01), Kramer

Affiliated with

Also associated with

Rating

Apparatus for measuring diamond colors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for measuring diamond colors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for measuring diamond colors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1088954