EP 1080387 A1 20010307 - METHOD OF MANUFACTURING SPECTACLE LENSES
Title (en)
METHOD OF MANUFACTURING SPECTACLE LENSES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON BRILLENLINSEN
Title (fr)
PROCEDE DE FABRICATION DE VERRES DE LUNETTES
Publication
Application
Priority
- US 0003872 W 20000215
- US 27039099 A 19990316
Abstract (en)
[origin: WO0055680A1] The present invention provides methods for producing a full prescriptive range of spectacle lenses while minimizing the number of the optical preforms, molds, or both required to produce the lenses. The method of the invention uses the distribution of the lenses distance power between an added layer or layers and an optical preform to reduce the number of preforms, molds, or both required in the lens production.
IPC 1-7
IPC 8 full level
B29D 11/00 (2006.01); G02C 7/02 (2006.01); G02C 7/06 (2006.01); B29K 105/32 (2006.01)
CPC (source: EP)
G02C 7/061 (2013.01); G02C 2202/16 (2013.01)
Citation (examination)
- US 3877798 A 19750415 - TOLAR HARRY R, et al
- US 4781452 A 19881101 - ACE RONALD S [US]
- US 4883548 A 19891128 - ONOKI FUMIO [JP]
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 0055680 A1 20000921; WO 0055680 A9 20011227; AU 3365200 A 20001004; BR 0006056 A 20010320; CA 2332237 A1 20000921; CN 1296574 A 20010523; EP 1080387 A1 20010307; IL 139684 A0 20020210; JP 2002539500 A 20021119; MX PA00011296 A 20030422
DOCDB simple family (application)
US 0003872 W 20000215; AU 3365200 A 20000215; BR 0006056 A 20000215; CA 2332237 A 20000215; CN 00800332 A 20000215; EP 00911821 A 20000215; IL 13968400 A 20000215; JP 2000605256 A 20000215; MX PA00011296 A 20000215