EP 1119794 A4 20060222 - PROTECTIVE FILTER LENS
Title (en)
PROTECTIVE FILTER LENS
Title (de)
LINSE MIT SCHÜTZENDEM FILTER
Title (fr)
LENTILLE FILTRE PROTECTRICE
Publication
Application
Priority
- US 9918084 W 19990810
- US 9953498 P 19980909
Abstract (en)
[origin: WO0014594A1] An ophthalmic, protective, filter lens, and a method of producing such lens, the lens having a ratio of Z and Y tristimulus values between 0.25-0.40, a dominant wavelength between 570-580 nm. on a color mixture diagram, a sharp transmission drop between 450-500 nm. and a transmission not over 30 % between 400-450 nm.
IPC 1-7
IPC 8 full level
C03C 3/064 (2006.01); C03C 3/091 (2006.01); C03C 3/11 (2006.01); C03C 4/06 (2006.01); C03C 4/08 (2006.01); C03C 23/00 (2006.01); G02C 7/10 (2006.01)
CPC (source: EP)
C03C 3/064 (2013.01); C03C 3/11 (2013.01); C03C 4/06 (2013.01); C03C 23/007 (2013.01); G02C 7/102 (2013.01)
Citation (search report)
- [XY] US 5381193 A 19950110 - WEDDING BRENT M [US]
- [XY] GB 2063852 A 19810610 - CORNING GLASS WORKS
- [Y] US 3892582 A 19750701 - SIMMS ROBERT A
- [AY] EP 0722910 A1 19960724 - CORNING INC [US]
- [A] EP 0452640 A1 19911023 - CORNING INC [US]
- [DA] US 4190451 A 19800226 - HARES GEORGE B [US], et al
- See references of WO 0014594A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0014594 A1 20000316; CA 2343364 A1 20000316; EP 1119794 A1 20010801; EP 1119794 A4 20060222; JP 2002524771 A 20020806
DOCDB simple family (application)
US 9918084 W 19990810; CA 2343364 A 19990810; EP 99941008 A 19990810; JP 2000569280 A 19990810