SU1384875A1 - Anti-fog head lamp - Google Patents

Abstract

The invention relates to lighting technology to fog lamps and allows for an increase in operational efficiency by improving the lighting characteristics. An anti-fog headlight, the reflector of which contains two paraboloid elements 5 and 6, pairwise conjugated with parabolic cylindrical elements 7 and 8, is equipped with additional parabolic elements 13 and 14 so that their outer edges 15 and 16 are located) below the extreme rays 17 and 18, reflected from parabolic cylindrical elements 7 and 8, perpendicular to the optical axis 21 of the headlight, while the focus of additional elements 13 and 14 coincided with the focus of parabolic elements 5 and 6 and the position of the bodies of the heat 9 and 10 of the light sources 11 and 12. 1 3.p. f-ly, 2 ill. with (L

Description

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The invention relates to traffic lighting, and more specifically to fog lamps, designed to facilitate operation in reduced visibility conditions.

The purpose of the invention is to increase the operational efficiency by improving the lighting characteristics.

FIG. Figure 1 shows a cross section of the fog lamp by a horizontally projected plane, an option where the optical axis of the headlight coincides in direction with the position of the optical axis — the axis of the additional parabolic elements; in fig. 2 - the same, the optical axis of the additional paraboloid elements is inclined to the optical axis

25

headlights.

The fog light (figs. 1 and 2) includes a housing 1, an optical element formed by diffuser 2 with transparent side surfaces 3 and 4 and a reflector made in the form of two parabolic elements 5 and 6 conjugated between them and the parabolic cylindrical elements 7 and 8 that are associated with them with the generators, which are located at an angle to the line passing through both foci of parabolic elements 5 and 6 with the glow bodies 9 and 10 of the light sources 11 and 12 installed in them. In turn, the parabolic cylinders of the filament bodies 9 and 10, and the optical elements 7 and 8 at the ends, the axes 19 and 20 are inclined to the guides coupled with the additional optical axis 21 of the headlight, will be paraboloidal elements 13 and 14

20 paraboloid elements 13 and 14 as well as from paraboloid elements 5 and 6 into the central zone of the light distribution created by the fog light due to the fact that the position of their foci coincides with the position of the filament bodies 9 and 10, which allows to increase the illumination in the central zone i.e. from 5 to 10 30 to the level that meets the requirements.

In another embodiment of the fog lamp design (Fig. 2), the radiation reflected by additional paraboloid 1 and elements 13 and 14 is due to the fact that their focus is combined with the polo30

At an angle to the axis 21, and depending on the value of this sitak angle, the paraboloid foci of the electric fog light work as follows.

With the included sources 1 1 and 12

The light part of the radiation (Fig. 1) is reflected by paraboloid elements 5 and 6 in the direction of the central light distribution region within the angles of ± 10 ° 30 in the horizontal plane,

The other part of the radiation of the glow bodies 9 and 10 of the light sources 11 and 12 is reflected from the parabolic cylindrical elements 7 and 8 of the reflector and, due to the oblique generator, redistributes the reflected luminous flux in the horizontal plane in a range of angles from + 10 ° 30 to +180, radiation sources 11 and 12 are reflected from additional

bodies 9 and 10, and the optical axes 19 and 20 are inclined to the direction of the optical axis 21 of the headlamp,

Paraboloid elements 13 and 14 as well as from paraboloid elements 5 and 6 into the central zone of the light distribution created by the fog light due to the fact that the position of their foci coincides with the position of the bodies of the filament 9 and 10, which allows to increase the illumination in the central zone, those. from 5 to 10 30 to the level that meets the requirements.

In another embodiment of the fog lamp design (FIG. 2), the radiation reflected by additional paraboloid 1 and elements 13 and 14 is due to the fact that their focus is aligned with the polo

bodies 9 and 10, and the optical axes 19 and 20 are inclined to the direction of the optical axis 21 of the headlamp;

Razhaat at an angle to the axis 21 and depending on the value of this angle b

cops 5 and 6 coincided with the focus of the w-to-40la light formed by these zones

complementary; paraboloid reflector elements will allow to increase sums 13 and 14, and the outer edges 15, the luminous intensity in the light-distributor 16 additional paraboloid elements in any given range, examples 13 and 14 were located below example +10 to +25, which is necessary

the positions of the extreme beams 17 and 18, from 45 to provide the modern, required for parabolic cylindrical elements 7 and 8 in the direction perpendicular to the optical axis of the headlamp. In this case (Fig. 1), the optical axes 19 and 20 of the additional paraboloid elements 13 and 14 coincide in direction with the optical axis 21 of the headlamp.

parabolic elements 7 and

In a variant of the design, it is prevented by 55 3 and providing an improvement in the lighting headlight (Fig. 2), the optical axial characteristics in the peripheral 19 and 20 additional paraboloid light distribution zones. elements 13 and 14 are inclined towards the directions. In addition, in both versions

the optical axis 21 lights.

Scientific research institutes of fog lights.

Both in the first and in the second version of the fog light design, additional paraboloid elements 13 and 14 increase the rigidity of the structure, while not allowing caNflJM deformation of the peripheral zones

fog lights extra paraboloid elements

13 and 14 do not shield reflected rays that provide light distribution in the range of 0-180 ° from parabolic-cylindrical elements 7 and 8, since the outer edges 15 and 16 of additional parabolic elements 13 and

14 is located below the position of the extreme rays 17 and 18, reflected from parabolic-cylindrical elements 7 and 8 of the reflector perpendicular to the optical axis of the headlamp. Therefore, the scattering angle of the light beam in the horizontal plane remains equal to I80.

Claims (2)

1. An anti-fog headlamp comprising an optical element including a diffuser, a reflector made in the form of two paraboloid elements mating together and two parabolic cylindrical elements mating with them, forming which is inclined to the line passing through paraboloid foci. elements at an acute angle, as well as two sources of light with incandescent bodies mounted at the foci of parabolic elements, which, in order to increase operational efficiency by improving the lighting characteristics, the free ends of the parabolic cylindrical elements are associated with additional paraboloid elements so that the focus of the latter coincides with the position of the bodies of the heat source NIKOV of light, while the outer edge of the additional paraboloid elements is located below the position of the outermost beam reflected from the yarabolic-cylindrical surface of the reflector perpendicular to the optical axis of the headlamp, 2. A headlamp according to claim 1, characterized in that the axes of the additional paraboloid elements are inclined to the optical axis of the headlamp. one"