Methods for producing indicia on diamonds
Номер патента: CA2093216C
Опубликовано: 11-03-1997
Автор(ы): Necip Alev, Ronald H. Winston
Принадлежит: Harry Winston SA
Опубликовано: 11-03-1997
Автор(ы): Necip Alev, Ronald H. Winston
Принадлежит: Harry Winston SA
Реферат: A method of producing a marking on diamond, pearl, precious or semi-precious stone. For producing the marking, the re-gion on the surface to be marked is irradiated with an ArF excimer laser whose output beam is passed through a mask which de-fines the marking. Identification or security marks may be created. The same process can be used to produce strong and durable extrusion dies having irregular cross sections, and cross sections which vary with depth through the die material.
Methods for producing indicia on diamonds
Номер патента: US5410125A. Автор: Ronald H. Winston,Necip Alev. Владелец: Harry Winston SA. Дата публикации: 1995-04-25.