Methods for producing indicia on diamonds

Details Methods for producing indicia on diamonds Methods for producing indicia on diamonds

1990-10-11

1992-09-22

Albritton, C. L.

Electric heating

Metal heating

By arc

21912168, 21912173, B23K 2600

Patent

active

051499380

ABSTRACT:
A method of producing a marking on a diamond. For producing the marking, the region on the surface of the diamond which is to be marked is irradiated with an argon fluorine excimer laser whose output beam is passed through a mask which defines the marking. The diamond selectively absorbs the excimer laser radiation and undergoes a partial allotropic transformation without losing its diamond crystal lattice configuration.

REFERENCES:
patent: 3527198 (1970-09-01), Takaska
patent: 4401876 (1983-08-01), Cooper

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