Ophthalmic lens post demold processing aid

Details Ophthalmic lens post demold processing aid Ophthalmic lens post demold processing aid

G - Physics

02

C

G02C 13/00 (2006.01)

Patent

CA 2607948

The present invention discloses improved methods and systems for inspecting an ophthalmic lens by exposing the ophthalmic lens to a processing aid solution that includes RCO2CH2CH20(CH2CH2O)x CH2CH2O2CR where R comprises (equals) at least one of : CF3CF2(CF2)xCH2; CH3CH2(CH2)xCH2; and Ry[Si(CH3)2o]x(CH2)3, while the lens is contained in a ophthalmic lens receptacle, in order to facilitate the removal of bubbles and center the lens in the ophthalmic lens receptacle with a reduced incidence of ophthalmic lenses being folded over on themselves. The decreased incidence of bubbles and proper positioning of the ophthalmic lens in turn facilitates accurate inspection.

L'invention concerne des procédés et systèmes améliorés pour contrôler une lentille ophtalmique, qui consistent à exposer ladite lentille à une solution auxiliaire de traitement renfermant RCO2CH2CH20(CH2CH2O)x CH2CH2O2CR, R comprenant (équivalant à) au moins un CF3CF2(CF2)xCH2; CH3CH2(CH2)xCH2; et Ry[Si(CH3)2o]x(CH2)3, tandis que la lentille est enfermée dans un réceptacle à lentilles ophtalmiques, afin de faciliter l'évacuation de bulles et de centrer la lentille dans ledit réceptacle avec une incidence réduite que les lentilles ophtalmiques se plient sur elles-mêmes. Cette incidence réduite et le placement approprié de la lentille ophtalmique facilitent un contrôle précis de ladite lentille.

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