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High intensity UV mold pretreatment

A mold and strength technology used in the field of ophthalmic lenses to eliminate inhibition and improve consistency

Inactive Publication Date: 2009-09-16
NOVARTIS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention attempts to solve the problems listed here by separating mold making from lens making

Method used

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  • High intensity UV mold pretreatment

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Embodiment Construction

[0017] Reference will now be made in detail to embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the novel concepts disclosed herein. For example, features illustrated or described as part of one embodiment can be used in conjunction with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents. Other objects, features and aspects of the present invention are disclosed or become apparent from the following detailed description. Those of ordinary skill in the art will appreciate that the present discussion is a description of exemplary embodiments only, and is not intended to limit the broader aspects of the invention. All patents or patent applications disclosed...

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Abstract

This invention is related to high intensity UV mold pretreatment in order to manufacture ophthalmic lenses, by reducing the adverse effect of mold exposure to oxygen and thereby to decouple mold creation from lens manufacture.

Description

technical field [0001] The present invention relates to ophthalmic lenses and related methods for making ophthalmic lenses. In particular, the present invention relates to methods of manufacturing contact lenses using high intensity UV light on lens molds to separate mold formation from lens manufacture. Background technique [0002] Contact lenses are widely used to correct many different types of visual defects. These visual defects include defects such as nearsightedness and farsightedness (nearsightedness and hyperopia, respectively), astigmatism, and near-sightedness defects (presbyopia) often associated with increasing age. Each type of defect requires specific correction and matching manufacturing methods. [0003] Additionally, some lens wearers require more than one type of correction. For example, people with presbyopia also have astigmatism. Those who are presbyopic need ophthalmic lenses that correct astigmatism and presbyopia. Lenses that combine correction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D11/00
CPCB29D11/00125
Inventor C·阿瓜多D·B·劳尔L·A·勒贝尔L·D·凯斯C·F·摩根K·W·罗森布拉姆D·E·斯莱克
Owner NOVARTIS AG