Illuminated glass panel of a motor vehicle and motor vehicle having such a glass panel
A technology for motor vehicles and light sources, applied in vehicle parts, windows, optics, etc., to solve problems such as opacity and blurred luminous glass windows
Active Publication Date: 2017-05-31
SAINT-GOBAIN GLASS FRANCE
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Problems solved by technology
The luminous glazing is therefore extremely hazy and often even opaque in the area of the diffusion layer
Method used
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[0175] For clarity of illustration, the various object components have not necessarily been shown to scale.
[0176] figure 1 A cross-sectional and partially schematic view of a lighted glazing of a motor vehicle 100 in a first embodiment of the invention is shown.
[0177] exist figure 1 Among them, the glazing according to the invention comprises a glazing module having an interlayer and a main outer surface named surface A and surface B, said glazing comprising:
[0178] - a first glazing 1, e.g. rectangular (e.g. with dimensions 300×300 mm), made of inorganic glass, with a first main surface 11 and a second main surface 12 corresponding to the surface A, and preferably with rounded corners (to avoid peeling off ) The interlayer 10 here is cut longitudinally (or transversely in variants) for example of an ultra-transparent soda-lime-silica glass layer, such as Diamant glass sold by the company Saint-Gobain Glass, with a thickness equal to, for example, 2.1 mm, the value o...
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Abstract
The invention relates to an illuminated glass panel of a motor vehicle (100) comprising: a glass module having an edge and main external faces, said module comprising a first glass panel (1), made of mineral or organic glass, with refractive index n1 of at least 1.4, having first and second main faces (11, 12), a light source (4) coupled to the glass module, preferably to the first glass panel, the glass module forming a guide for light emitted by the light source, light extraction means comprising a diffusing layer with a width of at least 1 cm containing dielectric diffusing particles (51) linked by a transparent matrix (5) of refractive index n2 at least equal to n1 or such that n1-n2 is at most 0.15. The majority of the diffusing particles are microparticles, spaced apart and comprising a transparent shell made of a dielectric material and in contact with the transparent matrix, the shells surrounding a core with refractive index n3 of at most 1.15 and having a largest dimension, referred to as D3, in a range from 5 [mu]m to 200 [mu]m, the microparticles having a largest dimension, referred to as D', of less than 2D3.
Description
technical field [0001] The present invention relates to light emitting (or "flashing") motor vehicle glazing, and more particularly to motor vehicle glazing using electroluminescent diodes. Background technique [0002] For many years, electroluminescent diodes or DELs (LEDs in English) have been used in motor vehicles as signaling devices (signal lights...), turn signals or side lights. The advantages of diodes are their long service life, light efficiency, robustness, low energy consumption and compact size, so that equipment can use them for a long time and require only low maintenance. [0003] In recent years, electroluminescent diodes have been used for vehicle headliners, in particular a panoramic laminated roof illuminated by photoluminescent diodes as described in document WO2010049638. Light emitted by the diodes is introduced by forming an interlayer on the inner glazing that guides, and light is extracted from the glazing by a diffusing layer on the glazing, suc...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B60J1/00G02B5/02G02B6/00
CPCB60J1/00G02B5/0242G02B6/0043G02B6/0051B60Q1/268B60Q1/302B60Q1/52B32B17/10036B32B17/1011B32B17/10293B32B17/10614B32B17/10761F21S43/14F21S43/239F21S43/245B32B17/10541B60Q1/381B60J1/005
Inventor M·贝拉尔B·迪博
Owner SAINT-GOBAIN GLASS FRANCE