Process and apparatus for ascertainment of the valuation of...

Details Process and apparatus for ascertainment of the valuation of... Process and apparatus for ascertainment of the valuation of...

G - Physics

01

N

340/155, 73/53

G01N 21/00 (2006.01) G01N 21/87 (2006.01)

Patent

CA 1086521

A B S T R A C T Process and apparatus for determining the presence and location of inclusions within gems. A gem is initially scanned or irradiated along X and Y co-ordinates by a light bundle whose cross-section perpendicular to the scanning tracks is at least equal to the spacing between adjacent tracks. The intensity of light passing through the gem is measured to determine the possible existence of any inclusions. The gem and the source of light are next moved relative to each other along the Z co-ordinate, so that the focal point of the light rays moves within the gem to pinpoint the location of any inclusions therein.

271186

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