G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 1/10 (2006.01) B29D 11/00 (2006.01) G02C 7/02 (2006.01)
Patent
CA 2612853
A method for producing an article which is made of a transparent material and devoid of visible surface lines consists in producing a substrate which is made of a transparent material having a refractive index ns, whose at least main face is machined and polished in such a way that the Ra value thereof ranges from 0.001 to 0.1µm, but has visible surface defects in the form of thin individual scratches, in deposing, a liquid polymerisable composition of a masking coating, whose contact angle with said substrate main face is equal or less than 30° and which is formed by polymerising a masking coating having a refractive index nc such as 0.01 < |ns - nc| = 0.15 and a thickness less than 10 micrometers, directly on the machined and polished main face of the substrate, in polymerising the masking coating composition and in removing the transparent article.
Procédé d'obtention d'un article transparent exempt de raies de surfaçage visibles, comprenant : l'obtention d'un substrat en un matériau transparent d'indice de réfraction ns, dont au moins une face principale a été ébauchée et polie à une valeur de Ra variant de 0,001 à 0,01 ~m mais qui présente des défauts de surface visibles sous la forme de fines rayures individualisées ; le dépôt directement sur la face principale ébauchée et polie du substrat d'une composition liquide, polymérisable, de revêtement de masquage présentant un angle de contact avec la face principale du substrat d'au plus 30~, et formant par polymérisation un revêtement de masquage ayant un indice de réfraction nc tel que 0,01 < |ns - nc| <= 0,15, et une épaisseur inférieure à 10 micromètres ; la polymérisation de la composition de revêtement de masquage ; et la récupération de l'article transparent.
Biver Claudine
Lesartre Noemie
Padiou Jean-Marc
Valeri Robert
Essilor International (compagnie Generale D'optique)
Gowling Lafleur Henderson Llp
LandOfFree
Method for producing an article made of a transparent... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing an article made of a transparent..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing an article made of a transparent... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1602251