FR2641364A1 - SIGNALING LIGHT FOR VEHICLES - Google Patents

Abstract

Traffic light 1, comprising: an elliptical translational reflector 7, closed by a transparent lens 4, inside which a light source 18 is housed; a colored filter 19, and an opaque transverse screen 10; the light source 18 extending along a first focal axis 15 of the elliptical reflector 7; the opaque screen 10 passing through a second focal axis 16 of the elliptical reflector and having a slit 17 extending along the second focal axis 16; and the color filter 19, being interposed between the first focal axis 15 and the second focal axis 16. Application to motor vehicles.

Description

The present invention relates to a signaling light

  for vehicles, in particular motor vehicles

  galls. In general, the traffic lights include a reflector, normally parabolic, provided, in front of its

  own focus, from a light source, and closed by a long

  transparent color, which varies in color

  according to the specific function exerted by the fire itself,

imposed by standards.

  Since the color of said lens rarely adapts aesthetically with the extinguished light to the color of the vehicle body, it has been proposed in the past various kinds of structured lights to present the desired color with the fire on and a different color, aesthetically compatible with the

  color of the bodywork, with the fire off.

  This result was obtained by means of reflectors

  expensive indirect light housing color filters

  dull and invisible, with the fire extinguished, from the outside, or

  well using internal color filters made invi-

  from the outside, with the fire extinguished, by means of a

  seems complicated prisms realized on the lens

  prisms which tend to prevent the external light

  to penetrate the same fire, but at the same time diminish its effectiveness, or by using external lenses of any desired color, and

  colored internal filters so as to cooperate, by syn-

  thesis, with the outer lens to impart

  re emitted the color provided by the standards.

  All the solutions described above have proved, in practice, to be relatively inefficient or

  effective but relatively complicated and expensive.

  The purpose of the present invention is to provide,

  in a simple and relatively economical way, a fire that pre-

  any desired color with the fire extinguished and the

  color imposed by standards with the fire on.

  The traffic light produced according to the present invention comprises an elliptical translational reflector

  equipped with two lateral walls of axial ends, one

  anterior transparent lens, an internal light source and a color filter interposed between the light source and the anterior lens, characterized by the fact that it further comprises an opaque transverse screen interposed between the color filter and the anterior lens; source

  light extending along a first focal axis of the

  elliptical flector, the opaque screen passing through a second focal axis of the elliptical reflector and having a slot

  extending along the second focal axis, and the co-ordinating filter

  ioré being interposed between the first and second axis

cal.

  In this way, the light emitted by the light source along the first focal axis is reflected by the elliptical reflector in the second focal axis through the filter, and out of the slot to pass out through the anterior lens. Therefore, with the fire on, all the light emitted by the light source,

  after having been colored with the desired color, comes out

  towards the slit of the screen and strikes the front lens, which may be colorless. On the other hand, with the fire extinguished, the external light that penetrates inside the fire through

  the anterior lens strikes the opaque screen and, even if

  manages to join the color filter, can not practically

  not go out through the slit of the screen; therefore, the color of the fire extinguished will be that of the screen,

  which may have any color, aesthetically

  patible with that of the vehicle body.

  The invention is described below with reference to the accompanying drawings which represent some examples not

  limiting embodiments of this invention.

On these drawings:

  Figure I is a perspective view, schematic

  that, with loose parts to make it clearer, of a preferred embodiment of the fire according to the present invention. Figure 2 is a front view, in elevation, of the

fire from Figure 1.

  Figure 3 is a sectional view along the line

111-111 of Figure 2.

  Figure 4 is similar to Figure 3 and relates to

  a first variant of the fire represented in the preceding figures, and FIG. 5 is a view showing, in section, along a line corresponding to the line V-V of FIG. 3,

  a second variant of the fire of Figure 1.

  Referring, in particular, to Figure 1, the

  reference I means, as a whole, in the case of a vehicle

  motor vehicles comprising an outer shell 2 (indicated in dashed lines in FIG. 3) substantially in the shape of a cup, which is closed on the front by

  a transparent lens 4, colorless and externally mu-

denies of diffusing prisms 5.

  Fire I understands. in addition, an internal body 6

  consisting of an elliptical translational reflector

  7 and an anterior cup body 8 arranged with

  their concavity opposite and coupled to each other preferably

  remotely to obtain an internal housing 9

substantially closed.

  In particular, the cup body 8 comprises an anterior transverse wall 10, arranged opposite

  of the wall of the internal surface of the lens 4 and parallel

  there are two parallel end walls 11

  between them and two walls 12 whose upper end and the lower end are parallel between

  they and perpendicular to the walls II.

  The reflector 7, on the other hand, comprises a lateral wall 13, which has the shape of a translation ellipse and is disposed with its own opposite ends aligned on the posterior ends of the respective walls 12, and two axial end walls 14, whose anterior extremities are aligned with the posterior extremities

walls 11.

  The reflector 7 has a first focal axis 15 extending through the walls 14 parallel to the walls and 12 and a second focal axis 16 located on the plane of the

wall 10 and parallel to the axis 15.

  The wall 10 is opaque and has an internal surface preferably aluminized and an outer surface preferably colored with a color which may vary at

  choice. The wall 10 constitutes a screen that is impenetrable to the light

  which is provided with an axial transverse slot 17

  limited by the walls II and having an axis

coincides with axis 16.

  Inside the housing 9 are arranged a light source 18 extending along the axis 15 and a color filter interposed between the light source 18 and the wall 10. According to the embodiment shown in Figures I to 3 said filter is constituted by a transparent plate 19, which has a color prescribed by the standards according to the function exerted by the fire I and is

  mounted on the body 8, between the walls 11 and 12, in position

  parallel to the wall 10. According to the variant shown

  in FIG. 4, said filter is constituted by a body

  20 disposed inside the housing 9 so as to

  velopper the light source 18. The body 20, made in one

  transparent and colored material such as plate 19,

  you. in section, a shape substantially in C with the concavity

opposite to that of the wall 13.

  As shown in Figure 3 or 4, when the light is on, the emitted rays

  by the light source 18 towards the reflected elliptical surface

  The inner wall 13, perpendicular to the focal axis 15, is reflected by the wall 13 itself to form a beam of rays 22 converging towards the axis 16. These rays 22, colored by the passage through the filter 19 or 20, are not stopped by the opaque wall 10,

  but leave the housing 9 through the slot 17 to meet

  counter the lens 4 and be diffused by it to the outside. The vertical amplitude of the beam emitted by the light I is determined by the lens 4 and its prisms 5, while the horizontal amplitude of said beam is a function, the shape and the dimensions of the lens 4 remaining equal, of

  the position of the walls Il. In this respect, Figure 5 represents

  a fire 23 quite similar to fire 1, of which it differs

  only by the fact that each pair of its walls 11, 14 is disposed divergently with respect to the other pair of walls 11, 14. In this way, it is possible to increase the horizontal amplitude of the beam as well as to concentrate by simple and / or double reflection on the lens 4, through the slot 17, radii 24 emitted by the source

18 in terms of axes 15 and 16.

  When the light source 18 is extinguished, the chamber

  9 behaves substantially like a black body for any outer rays that penetrate through the slot 17. Therefore, the filter 19 or 20 is invisible from

  outside when the source 18 is extinguished and the fire I se-

  ra, seen from the outside, if the lens is transparent and colorless, the color, variable with the choice, of the surface

external of the opaque wall 10.

Claims (7)

  1. Signaling light (1, 23) comprising a   elliptical translational deflector (7) with two walls   axial end faces (14), a transparent lens   anterior (4), an internal light source (18) and   a color filter (19, 20) interposed between the light source   se (18) and the front lens (4), characterized in that it further comprises an opaque transverse screen   (10) interposed between the color filter (19), (20) and the len   anterior head (4); the light source (18) extending along a first focal axis 15 of the elliptical reflector (7), the opaque screen (10) passing through a second focal axis (16) of the elliptical reflector (7) and having a slot (17) extending along the second focal axis (16) and the color filter (19, 20) being interposed between the first focal axis   (15) and the second focal axis (16).   2. Fire according to claim 1, characterized by   the fact that said two side walls (14) are parallel to each other between them.   Fire according to claim 1, characterized by   the fact that said two side walls (14) are di-   with respect to each other in the direction of the said lens (4).   4. Fire according to any one of the claims   preceding, characterized by the fact that said color filter   (19) is constituted by a transparent wall parallel to said screen (10).   5. Fire according to any one of claims I to   3, characterized in that said color filter (20)   at least partially poles the light source (18) and has, in section, a shape substantially in C.   Fire according to any of the claims   preceding, characterized in that it comprises a cup body (8) arranged to close said reflector (7)   and coupled thereto, said screen (10) constituting a   bottom king of said cup body (8).   Fire according to any of the claims   preceding, characterized in that said screen (10) has, on the side facing said lens (4), a colored surface whose color may vary at will.