FR3042044A1 - ANTI-LIGHTENING DRIVING GOGGLES EQUIPPED WITH PINK TINT ADAPTED TO THE NEW WHITE-BLUE HEADLIGHTS OF VEHICLES - Google Patents

Abstract

The present invention relates to anti-glare driving glasses equipped with the pink tint adapted to the new white-bluish headlights of the vehicles. Glare when driving at night is a road safety problem. The new headlights of today's white-bluish vehicles accentuate this problem. Going beyond the current market proposal, consisting of yellow-tinted headlights, the invention responds to the blue hue around 475 nm by inoculating glasses with filter lenses. If the complementary color of blue is between orange and red, these colors are dark and the glass must be lightened to allow safe and optimal night vision. The invention consists in lightening this color towards the pink to allow efficient absorption of blue lights while ensuring a satisfactory brightness for driving at night. The perspective of industrial use of the invention is the production of the invention for road users, with the aim of improving their visual comfort and their road safety.

Description

The present invention relates to anti-glare driving glasses equipped with the pink tint adapted to the new white-bluish headlights of the vehicles.

With 600 to 700 accidents annually linked to the glare of vehicle headlights (source Ministry of the Interior), the issue of glare is a road safety issue. The headlights of the old, yellow vehicles dazzled the road users. Nevertheless, specific glasses, tinted in yellow, existed on the market to mitigate this glare by increasing the visual comfort. Today car manufacturers (cars, scooters, motorcycles) have integrated white-bluish headlights (Xenon technologies, LED ...). This use tends to become general. These lighthouses, more aesthetic, offer a more modern visual rendering and significantly improve lighting. But they are also much more dazzling. The invention responds to this novelty by responding to a set of specifications consisting of two objectives: first, filtering the headlamps effectively to allow the road user not to be dazzled, so that his visual comfort and his road safety ; secondly, to preserve a satisfactory night vision (called "scotopic"). For this, the invention filters the majority wavelengths of the new headlights, located in the blue zone of the visible spectrum. This blue is all the more dazzling as the sensitivity diagram of the human eye to light shifts to blue in scotopic vision (see the "Drawings" section of the present application). The peak emission of Xenon headlights is located at 475 nm, and it is this color that has become widespread on automotive headlights and that the invention can filter. To filter a color, this color is absorbed by applying a filter of the complementary color to that which one wants to filter. According to the color wheel, present on the "Drawings" part of the present application, the complementary color at 475 nm is between red and orange. The direct disadvantage of these colors is their darkness, which hinders a satisfactory scotopic vision. The invention therefore includes tinted lenses of a less dark color.

To lighten the red-orange, two options are possible: go to yellow as the state of the art shows (see the current market) or go to the pink. The latter option was not selected on the market products. The invention therefore consists of glasses tinted with pink to filter the blue light of the new headlights. This rose corresponds, in the chromaticity diagram represented on the "Drawings" part of the present application, to the colors present in the triangle formed by the following three points: the white point, the intersection of the colored zone of the diagram with the axis of abscissa 0.2 and the intersection of the colored zone of the diagram with the axis of abscissa 0.5.

The accompanying drawings illustrate the invention:

Figure 1 - Scotopic vision and photopic vision

Figure 2 - Chromaticity wheel. This figure shows the different complementary colors. Each color sees its complementary color on the other intersection of the line passing through its own color and the center of the circle.

Figure 3 - CIE 1931 chromaticity diagram The industrial application of the invention is, by way of non-limiting example, as follows. A pair of glasses, plastic for example non-limiting (this is the case of prototypes) is manufactured conventionally. It can also be overclouds (large glasses can be worn in addition to eyeglasses) or glasses without branches to fit on already existing glasses. The material of the object may be any material used to produce glasses: by way of non-limiting examples glass, various polymers, titanium. This pair of glasses is immersed in a dyebath containing a dye having the chemical property of adhering to the material of the glasses. This is the principle of soaking coloring. Other coloring modes can be used for the manufacture of the invention. The glasses can be used on the road after drying.

The perspective of industrial use of the invention is the production of the invention for road users, with the aim of improving their visual comfort and their road safety.

Claims (1)

1) Anti-glare driving glasses equipped with the pink shade adapted to the new white-bluish headlights of the vehicles, characterized in that they comprise tinted lenses of a pink hue, identifiable on the chromaticity diagram CIE 1931 (cf. "Drawings" of the present application) in the triangle formed by the following three points: the white point, the intersection of the colored zone of the diagram with the abscissa axis 0.2 and the intersection of the colored zone of the diagram with the abscissa axis 0.5.