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Ophthalmic lens in particular for sunglasses

A technology of spectacle lenses and sunglasses, applied in the field of spectacle lenses of sunglasses, can solve problems such as reducing the effectiveness of mirrors

Inactive Publication Date: 2019-05-03
BNL EUROLENS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, being the outermost layer (i.e. the layer directed towards the user's field of vision), this outer layer is also exposed to all types of external aggression, such as deposits of dust, scratches, etc., which may reduce the formation of this layer over time effectiveness of mirrors

Method used

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  • Ophthalmic lens in particular for sunglasses
  • Ophthalmic lens in particular for sunglasses
  • Ophthalmic lens in particular for sunglasses

Examples

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Embodiment Construction

[0043] An example of an embodiment will now be described with reference to the drawings. In all drawings, the same reference numerals have been used to refer to the same elements.

[0044] Therefore, according to Figure 3 to Figure 5 Schematic diagram of the stack, it is easy to deduce the difference between adding various layers to or removing various layers from it Figure 1A with Figure 1B Similar figure.

[0045] The following embodiments are examples. Although this description refers to one or more embodiments, this does not necessarily mean that each reference is related to the same embodiment, or that these features are only applicable to a single embodiment. The individual features of the various embodiments can also be combined to create other embodiments.

[0046] Use the "front" or "back" side of the layer to make a reference to the propagation of light toward the eyes. Therefore, the "front" side is always the side closest to the user's field of view, and the "back" s...

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Abstract

The invention relates to an ophthalmic lens (1), in particular for sunglasses, comprising: - a first outer layer (9) of transparent substrate, comprising a rear face (9AR), intended to be orientated towards the eye of a user of said ophthalmic lens (1), and a front face (9AV) intended to be orientated towards the field of vision (13) of the user, intended to form the convex, front outer surface ofthe ophthalmic lens (1), - a second outer layer (10) of transparent substrate, comprising a rear face (10AR) orientated towards the eye of the user, intended to form the concave, rear outer face of the ophthalmic lens (1) orientated towards the eye of the user, and a front face (10AR) orientated towards the field of vision of the user, characterized in that the lens further comprises an interferometric mirror (21) disposed between the first outer layer (9) and the second outer layer (10).

Description

Technical field [0001] The present invention relates to spectacle lenses particularly used for sunglasses. Background technique [0002] It is medically recommended to wear sunglasses (especially when the outdoors is very bright) to maintain a person's long-term vision potential, and it is also recommended to wear sunglasses for safety reasons, such as when driving. [0003] It is well known that the manufactured spectacle lenses or spectacles or sunglasses lenses use half mirrors to attenuate the perceived luminosity, thereby attenuating the sun reflection that may be dazzling, and at the same time providing the spectacle lenses with a mirror-like appearance with aesthetically pleasing color reflections. [0004] These spectacle lenses also allow for improved contrast and volume perception, thereby improving visibility, especially when driving or on snow. [0005] Therefore, in some cases, the outermost layer (that is, the layer directed toward the user's field of view) is a layer fo...

Claims

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Application Information

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IPC IPC(8): G02C7/10G02C7/12B29D11/00G02B5/28G02C7/14
CPCG02B5/285G02C7/102G02C7/12G02C7/14G02C2202/16B29D11/00009B29D11/00644B29D11/00653B29D11/0073G02B5/3033G02C7/107B29D11/00403
Inventor D·克莱克F·勒迪恩
Owner BNL EUROLENS