WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1997011918) OPTICAL LENSES AND METHODS FOR MAKING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/011918    International Application No.:    PCT/FR1996/001486
Publication Date: 03.04.1997 International Filing Date: 24.09.1996
IPC:
C03C 3/078 (2006.01), C03C 3/087 (2006.01), C03C 3/089 (2006.01), C03C 3/091 (2006.01)
Applicants: SAINT-GOBAIN VITRAGE [FR/FR]; 18, avenue d'Alsace, F-92400 Courbevoie (FR) (For All Designated States Except US).
GANDARILLAS-LASTRA, José, Francisco [ES/ES]; (ES) (For US Only).
TROUILLE, Benoit [FR/FR]; (FR) (For US Only)
Inventors: GANDARILLAS-LASTRA, José, Francisco; (ES).
TROUILLE, Benoit; (FR)
Agent: SAINT-GOBAIN RECHERCHE; 39, quai Lucien-Lefranc, F-93300 Aubervilliers (FR)
Priority Data:
95/11227 25.09.1995 FR
Title (EN) OPTICAL LENSES AND METHODS FOR MAKING SAME
(FR) LENTILLES OPTIQUES ET PROCEDES DE FABRICATION
Abstract: front page image
(EN)Lenses such as aspherical lenses and methods for making same are disclosed. The lens consists of a glass matrix containing the following components: 65-85 wt.% of SiO¿2?, 0-10 wt.% of Al¿2?O¿3?, 0-20 wt.% of B¿2?O¿3?, 3-20 wt.% of Li¿2?O + Na¿2?O + K¿2?O, 0-15 wt.% of CaO + MgO + BaO, and 0-0.1 wt.% of FeO + Fe¿2?O¿3?, wherein the amount of K¿2?O does not exceed 1 wt.% and the amount of BaO does not exceed 1 wt.%.
(FR)L'invention concerne des lentilles telles que des lentilles asphériques et leur procédé de fabrication. Selon l'invention, la lentille est composée d'une matrice verrière comprenant les constituants ci-après dans les proportions pondérales suivantes: SiO¿2? 65-85 %, Al¿2?O¿3? 0-10 %, B¿2?O¿3? 0-20 %, Li¿2?O + Na¿2?O + K¿2?O 3-20 %, CaO + MgO + BaO 0-15 %, FeO + Fe¿2?O¿3? 0-0.1 %, la teneur en K¿2?O demeurant égale ou inférieure à 1 % et la teneur en BaO demeurant égale ou inférieure à 1 %.
Designated States: CZ, JP, KR, PL, US.
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: French (FR)
Filing Language: French (FR)