EP 1049654 A1 20001108 - OPTICAL COMPONENT MADE OF SILICA GLASS AND METHOD FOR THE PRODUCTION THEREOF
Title (en)
OPTICAL COMPONENT MADE OF SILICA GLASS AND METHOD FOR THE PRODUCTION THEREOF
Title (de)
OPTISCHES BAUTEIL AUS QUARZGLAS UND VERFAHREN FÜR SEINE HERSTELLUNG
Title (fr)
COMPOSANT OPTIQUE EN VERRE QUARTZEUX ET SON PROCEDE DE PRODUCTION
Publication
Application
Priority
- DE 19841932 A 19980914
- EP 9903342 W 19990514
Abstract (en)
[origin: DE19841932A1] An UV transmitting optical component consists of a flame hydrolysis deposited and directly vitrified quartz glass of extremely low hydrogen content. An optical component for transmitting UV radiation of <= 250 nm wavelength consists of quartz glass formed by direct vitrification of fine grained SiO2 deposited on a substrate by flame hydrolysis of a chlorine-free silicon compound. The quartz glass has a hydrogen content of less than 5\*10<16> molecules/cm<3>. An Independent claim is also included for production of the above optical component, the quartz glass being subjected to a hydrogen content reduction treatment. Preferred Features: The hydrogen content reduction treatment comprises treatment in vacuum and/or a chemically reactive atmosphere.
IPC 1-7
IPC 8 full level
C03B 20/00 (2006.01); C03B 8/04 (2006.01); C03B 19/14 (2006.01); C03C 3/06 (2006.01); C03C 4/00 (2006.01)
CPC (source: EP KR)
C03B 19/1453 (2013.01 - EP KR); C03C 3/06 (2013.01 - EP KR); C03C 4/0085 (2013.01 - EP KR); C03B 2201/21 (2013.01 - EP KR); C03B 2201/23 (2013.01 - EP KR); C03B 2207/32 (2013.01 - EP KR); C03C 2201/21 (2013.01 - EP KR); C03C 2201/23 (2013.01 - EP KR); C03C 2203/40 (2013.01 - EP KR)
Citation (search report)
See references of WO 0015570A1
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
DE 19841932 A1 20000316; EP 1049654 A1 20001108; JP 2002524382 A 20020806; KR 20010032101 A 20010416; WO 0015570 A1 20000323
DOCDB simple family (application)
DE 19841932 A 19980914; EP 9903342 W 19990514; EP 99969079 A 19990514; JP 2000570115 A 19990514; KR 20007005233 A 20000513