FR2614390A1 - Masked signalling or illumination light for motor vehicles - Google Patents

Abstract

The invention relates to a signalling or illumination light for a motor vehicle, comprising a casing possibly carrying a reflector and a transparent glass closing the said casing, the colour of the light when on being masked when off. The light according to the invention is characterised in that the said casing and the said reflector are covered in the tint to be obtained so that the light rays emitted by the lamp do not pass through the coloured material before being reflected, and the transparent glass has a colorimetry contained within the colour polygon corresponding to the illuminated function. Application to the motor vehicle industry.

Description

Concealed signaling or lighting light for motor vehicle
The invention relates to a signaling or lighting light for a motor vehicle comprising a shoemaker optionally carrying a reflector and a transparent glass closing said shoemaker, the color of the lit light being masked in the extinguished state.

Signaling assemblies comprising such lighting lights combined with also masked signaling lights have received significant developments because of the uniform, single-color appearance which they make it possible to give to extinguished lights despite the diversity of colors used for each of the signaling or lighting functions. Here, a fire is understood to mean a unit ensuring a lighting (white) or signaling (red or yellow) function which is generally integrated in a signaling assembly comprising several such juxtaposed units.

To give the different units the bleak, dull appearance, two general methods have been used so far.

The first consists in giving the transparent glass a uniform gray coloring and in providing the lamps with functions other than the recoil of a lens colored in the color of the corresponding function.

The second method consists in not coloring the transparent glass and in surrounding the lamps with functions other than the recoil of a colored windscreen in the color of the transparent function, this windscreen being associated with an opaque mask allowing a large part of the rays emitted by the lamp but intercepting most of the incident rays coming from outside and having passed through the ice.

These two methods do not give perfect results with regard to the extinguished aspect, are expensive due to the use of windshields and possibly masks, in addition, the energy of the light sources used is partially lost.

The masking of an independent light, not integrated into a signaling assembly, can also be advantageous for an aesthetic aim of standardizing color with the part of the vehicle carrying the light.

The present invention aims to give, to a signal or lighting light extinguished, a color of appearance different from the color emitted by the light ignited without using windshields or other additive members.

To this end, the lamp according to the invention is characterized in that said housing and said reflector are colored in the color of appearance to be obtained, so that the light rays emitted by the lamp do not pass through the colored material before d 'be reflected, and the transparent glass has a colorimetry located inside the color polygon corresponding to the illuminated function.

Preferably, the colorimetry of the ice is at the limit of this functional zone.

The light source may be neutral or complementary to the color of the housing and / or of the crystal.

The invention will be clearly understood on reading the following description made with reference to the accompanying drawing, the single figure of which is a schematic sectional view of a light according to the invention.

The fire is mainly composed of - a housing I molded in the color of appearance that one wishes to obtain in the extinguished state. This color can be obtained either by painting, or by pigmentation of the material used, or by coating with any material of the desired appearance shade, that is to say by any process capable of constituting a colored layer which cannot not, in any case, be crossed by the incident rays emitted by the lamp of the fire in operation.

- of a transparent or glass 2 molded in a material of the function color in the lit state which it is desired to obtain in such a way that the colorimetry of the function remains inside the color polygon corresponding to the function lit (and preferably at the edge of this functional area).

- a light source or lamp 3 of neutral color or complementary to the color of the preceding elements.

In this way, when the fire is extinguished, by vision through the transparency 2, the color of the boltier 1 will give the appearance of the tint of the dyed fire that it is desired to obtain. On the other hand, when the lamp 3 is supplied, the light rays passing through the transparent 2 of stated color limit will give a beam of light rays of the desired functional color, as well for the reflected rays F 'as for the direct incident rays F ".

 I1 it is understood that the housing 1 may be equipped with an additional reflection element whose structure will in no way be crossed by the incident rays (such as a parabola or other conical reflection and not of refraction). The transparent 2 may be formed by the association of several optical elements (such as frescoes, prisms, etc. of refraction) at the limit color of the function which, crossed by the light rays emitted by the lamp 3, will transmit a lighting beam elou for signaling the desired shade.

The invention extends to all devices using transmission elements giving a functional color by adding or subtracting their elementary color.

By way of example, the box 1 has been given the traditional red color of the signal lights "positiontt or or" stop ", the transparency 2 is of pink color with colorimetric coordinates X r 0.4965 and Y 0.3930, and lamp 3 is a colorless balloon The extinguished light has a traditional red appearance while, when lit, the lighting produced is white.

Claims (4)

1.- Signaling or lighting light for a motor vehicle comprising a housing optionally carrying a reflector and a transparent glass closing said shoemaker, the color of the lit light being masked in the extinguished state by the fact that said shoemaker (1) and said reflector are colored in the appearance color to be obtained, so that the light rays emitted by the lamp do not pass through the colored material before being reflected, and the transparent glass (2) has a colorimetry located inside of the colored polygon corresponding to the lit function. 2.- Light according to claim 1, characterized in that the colorimetry of the ice (2) is at the limit of this functional area. 3.- Light according to one of claims 1 and 2, characterized in that the lamp (3) is of neutral color. 4.- Light according to one of claims 1 and 2, characterized in that the lamp (3) is of complementary color to the color of the housing (1) and / o. ice (2) 5.- Signaling and / or lighting assembly for a motor vehicle, characterized in that it comprises a light according to one of claims 1 to 4.