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Method for producing an ophthalmic lens and an optical component for carrying out said method

A technology of optical components and components, applied in optical components, optical components, optics, etc., can solve problems such as damage to unit product cost, change of absorption or coloring parameters along the transparent surface, personal needs or inappropriate needs, etc., to achieve more economical Inventory control, the effect of simplifying inventory control, eliminating the need for lens surfaces

Active Publication Date: 2007-06-13
ESSILOR INT CIE GEN DOPTIQUE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increasing the number of possibilities offered is desirable, but this will hurt the cost per unit of product
Possibilities to change absorption or coloring parameters along transparent surfaces are also more limited and in no way suitable to the wearer's personal needs or needs

Method used

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  • Method for producing an ophthalmic lens and an optical component for carrying out said method
  • Method for producing an ophthalmic lens and an optical component for carrying out said method
  • Method for producing an ophthalmic lens and an optical component for carrying out said method

Examples

Experimental program
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Embodiment Construction

[0030] The optical element 10 shown in FIG. 1 is a semi-finished product for a soft-focus spectacle lens. The semi-finished product may have a diameter of eg 6 cm. In a manner known per se, the lens ready for assembly with a frame is obtained by trimming the semi-finished product 10 along a contour corresponding to the frame. This profile is shown in dashed lines in FIG. 1 .

[0031] Figures 2a and 2b show two initial configurations of the optical elements, corresponding to two different ways of defining optically functionally inscribed pixels in the lens. In the case of the configuration according to Fig. 2a, the pixels are not confined in the optical element before the illumination phase. In contrast, an optical element having a configuration according to Fig. 2b initially has pixels which are individually defined by their respective size, their respective shape and their respective structure during the manufacture of the optical element.

[0032] According to a first con...

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PUM

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Abstract

The invention relates to a method for producing an ophthalmic lens exhibiting optical function consisting in producing an optical component (10) incorporating at least one type of active material (2) which is distributed in a parallel direction to the surface thereof. Said active material exhibits a radiation-modifiable optical property. The active material (5) portions disposed through the component (10) surface are, afterwards, selectively irradiated in such a way that the optical function is obtainable by modulating said property from one portion to another one, wherein the sizes of said portions are less than 1 mm.

Description

technical field [0001] The invention relates to a method of manufacturing an ophthalmic lens, and an optical element suitable for carrying out said method. Background technique [0002] Ophthalmic lens here refers to any optical element made of mineral and / or organic material, at least partially transparent and adapted to be placed in front of the eyes of the wearer, without regard to the optical function of said element . In particular, it may have an anti-glare protection function by absorbing part of light, so-called anti-sunlight function, a contrast enhancement function by coloring or polarization filtering, an ametropia correction function, and the like. In particular, it may be a telefocal, monofocal, bifocal, multifocal or progressive lens. [0003] Ocular anomaly correcting lenses are generally manufactured by forming a transparent material with a higher refractive index than air. The shape of the lens is chosen so that light is properly focused on the wearer's r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/02G02B3/00
CPCG02B3/0087G02C7/02G02C2202/12G02C2202/18G02B3/00
Inventor 让-保罗·卡诺保罗·库德雷
Owner ESSILOR INT CIE GEN DOPTIQUE