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Machine translation
1. (WO1990001392) MAKING AN ELONGATE CUT USING HIGH ENERGY RADIATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1990/001392    International Application No.:    PCT/GB1989/000942
Publication Date: 22.02.1990 International Filing Date: 15.08.1989
Chapter 2 Demand Filed:    01.03.1990    
IPC:
B23K 26/36 (2006.01)
Applicants: ANSTALT GERSAN [LI/LI]; Staedtle 36, FL-9490 Vaduz (LI) (For All Designated States Except US).
COOPER, Martin [GB/GB]; (GB) (JP, US only).
STEWART, Andrew, David, Garry [GB/GB]; (GB) (JP, US only)
Inventors: COOPER, Martin; (GB).
STEWART, Andrew, David, Garry; (GB)
Agent: LYNDON-STANFORD, Edward, Willoughby, Brooke; Marks & Clerk, 57-60 Lincoln's Inn Fields, London WC2A 3LS (GB)
Priority Data:
8819351.1 15.08.1988 GB
Title (EN) MAKING AN ELONGATE CUT USING HIGH ENERGY RADIATION
(FR) REALISATION D'UN TAILLAGE ALLONGE A L'AIDE D'UN RAYONNEMENT DE HAUTE ENERGIE
Abstract: front page image
(EN)To make an elongate cut (1) in a diamond (2) using a laser radiation, a cylindrical optical system (5, 6) is used which converges the radiation at a greater angle of convergence in the plane of the cut (1) than in the transverse plane. In this way, the focal spot energy density is increased and cutting at depth is made more effective.
(FR)Pour procéder à un taillage allongé (1) dans un diamant à l'aide d'un rayonnement laser, on utilise un système optique cylindrique (5, 6) faisant converger le rayonnement à un angle de convergence supérieur dans le plan de la taille (1) par rapport au plan transversal. Ainsi, on augmente la densité de l'énergie du point focal et la taille en profondeur est plus efficace.
Designated States: AU, JP, US.
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE).
Publication Language: English (EN)
Filing Language: English (EN)