SK74192A3 - Signal luminaires - Google Patents

Description

Obiaat techniques

The invention relates to a signal lamp, in particular for motor vehicles, in which it is solved without its color contrast and increasing luminous efficiency and lateral visibility.

BACKGROUND OF THE INVENTION Use conventional lamps. to provide a signal of a change in direction or acceleration of the vehicle of a color optical signal which is provided by a colored outer cover. However, its color does not generally have to be in harmony with the color of the vehicle body and, in particular, when the lamp is installed near the headlamp, it produces a high color contrast and thus impairs visual comfort. The reflector of conventional lamps is in the form of a continuous paraboloid, which in a certain mounting space reduces the lateral visibility of the signal lamp and its light efficiency.

SUMMARY OF THE INVENTION

These drawbacks are eliminated in a signal lantern according to the invention, the reflector of which is composed of axially offset pens of raboloid segments with different focal length values, which allow an increase in luminous efficiency and improved lateral visibility of the illuminating surface of the lantern. The color filter is formed by an internal refractor equipped with a Fresnel lens, and the color mismatch is suppressed by the external colorless refractor. This reflector is supported by spherical-shaped scattering elements that produce a wider light signal from the eye beam and return light coming from the exterior on the signal aviation, thereby reducing the color saturation of the outer surface of such a lamp. Phantomic reversal images are also hammered, which could reduce the speed and likelihood of identifying the correct flashlight signal.

Drawings in the drawings'

BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated by the accompanying drawings in which: FIG. 1 is a vertical cross-section A-A signal aviable, FIG. 2 is a horizontal section along the B-B lamp; and FIG. 3 shows the lamp reflector in front view.

DETAILED DESCRIPTION OF THE INVENTION

In FIG. 1, 2, 3 is a signal lamp composed of a reflector

Reflecting surface of reflector 1 is composed of axially offset paraboloid segments A: upper 11, lower and 14 *, which are connected by a cylindrical or conical surface and from side 15, which is at least axially extracted. thus ensuring good lateral visibility of the lamp. The cylindrical or conical surface 13 reflects light on the upper paraboloid segment 11, which is redirected into a useful working space, thereby increasing the luminous efficiency of the lamp.

For focal lengths f ^, f ^ »of reflective parabolic segments A 11, 12, 14, 19 * reTTekT ± ± f ₄ <t, <f _x <f ₅

... (1) and these segments 11 »12. angle ° l _t 2

O _o t = 30 ° ± 60 °, ··· * (2)

The foci of the reflection segments 11, 12, 15 coincide with the same light source 4, and the focus segment 14 of the reflection segment 14 is on the side of the reflector 1 at a distance df

Thus, the light beam from the reflective segment 14 is lifted and shaded by the vehicle body mount or fixation members. The luminaires may be located on the underside of the lamp.

The inner refractor 2 is in this example facing the source of light 4 in the central region about the x-axis of the lamp. A freanol lens 21 that directs direct light coming from the light source 4 into a useful working area of the lamp. The outer refractor J is provided with spherical-shaped diffuser elements 31 of a semicircle R whose width T is

T = (0.3t 3) ♦ R • * · (4)

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F and height II is

II = (0.1 ml). R (5)

Prúmyslová exploitable

The signal lantern according to the invention can be used in motor vehicle lighting systems, in particular in automobile headlamps.

Claims (4)

PATENT CLAIMS A signal lantern consisting of a reflector, an internal and an external refractor and a light source, characterized in that the reflector (1) is composed of paraboloidal reflective energy elements (11, 12, 14, 15), the lower segments (12, 14) ) are connected by a cylindrical or conical reflecting surface (13) and for focal lengths (f ^, f ₂ , f ^, f ^) of the paraboloid reflecting segments (11, 12, 14, 15) of the reflector (s) apply: ··· (1 ) and these segments (11, 12, 14, 15) are radially delimited by planes extending through the axis (x) of the lamp and at an angle (0- ^ ₂ ) ° 1.2 ^{= 30} ° * ⁶⁰ ° • · * (2) from the internal color refractor (2) and the external color refractor (3). A signal lantern according to claim 1, characterized in that the foci ( ^F ₁ , ₂ , ^1? Fp of the paraboloidal reflecting aegments (11, 12, 15) of the reflector (1) coincide with the center of light source (4) and the focus (F). ^) of the reflecting segment (14) is stranë the top of the reflector (1) at a distance (DF) df '(0.25 t 0.75). f ₄ &quot; - · D)? 3. Signal lantern according to point. 1 and 2, characterized in that the inner refractor (2) is provided with a Fresnel lens (21) in the central region around the axis (x) and windward · 4. A signal and windscreen according to claim 1, 2 and 3, characterized in that the external refractor (3) is provided with spherical-shaped diffusing elements (31) of radius (R), the peak (T) of which is