CZ2012257A3 - Elliptic light guide module - Google Patents

Abstract

The elliptical light guide module, intended in particular for rear tail lamps and motor vehicle headlamps, is formed by a plate secondary portion (4) extending over its entire outer circumference to a tertiary portion (5), in the form of a hem, arranged in the direction of orientation of the active surface of the plate secondary portion (4), a cylindrical primary portion (2) having a recess (8) is formed on the opposite side of the plate secondary portion (4) to which the light source (1) is adjacent, and is coaxially aligned with the primary portion (2) the plate secondary part (4) has a conical recess (3) forming Y - branching, whereby the outer circumferential surface (6) arranged between the plate secondary part (4) and the tertiary part (5) has at least a part of at least two reflective pins ( 7), to provide light reflection back to the secondary part (4) and thereby cover the active area of the module with both light and its recess screen m (3).

Description

Elliptical light guide module

Technical field

BACKGROUND OF THE INVENTION The present invention relates to an elliptical light guide module for use in particular for rear tail lamps and motor vehicle headlights.

BACKGROUND OF THE INVENTION

From EP file

No. 1,881,265 A1, there is known a light guide module consisting of a plate secondary portion extending over its entire outer periphery into a tertiary portion having the form of a rim arranged in the direction of orientation of the active surface of the plate secondary portion.

On the opposite surface of the plate secondary part is then s

a cylindrical primary portion

frontal by selecting, ke which is adjacent to the light source. Souose with primary parts is while v active desktop plate secondary parts modified conical recess forming Y - branching Between board secondary part and tertiary parts is modified external peripheral inclined surface, on which he is

a system of facets designed to increase the reflective surface reflecting light radiation into the tertiary part of the module.

The disadvantage of this construction of the fiber optic module is, in particular, that the luminous flux emerging from the active surface of the secondary plate is not sufficiently homogeneous, especially in the shielded areas around the Y-cone

SUMMARY OF THE INVENTION

The above-mentioned disadvantages are largely eliminated by the elliptical light guide module, intended especially for rear tail lamps and motor vehicle headlights. The module consists of a plate secondary part, which is interconnected

Along its entire outer periphery into a tertiary portion, which is in the form of a rim arranged in the direction of orientation of the active surface of the plate secondary portion.

A cylindrical primary part is formed on the opposite surface of the plate secondary part by a front recess to which the light source is adjacent, and a conical recess forming a conical recess is provided coaxially with the primary part of the plate secondary part.

Y - branching.

According to the present invention, the outer circumferential inclined surface provided between the plate secondary portion is provided with a system of at least two reflective pins to provide light reflection back to the secondary portion thereby covering the active surface of the module with light and a conical shielding location. by selecting.

The essence of this construction further consists in that the module is provided with at least two cylindrical primary parts provided with one light source, the light sources being light-emitting LEDs, which may be of different colors.

It is also important to note that the planes forming the reflective pin and ensuring its functionality do not necessarily have to be at right angles to each other.

An advantage of this design of the light guide module is that the luminous flux emerging from the active surface of the plate secondary portion is sufficiently homogeneous, even in the shielded areas around the Y-cone.

BRIEF DESCRIPTION OF THE DRAWINGS

In the accompanying drawings, a possible embodiment of an elliptical light guide module according to the invention is shown. 1 is an axonometric view of a light guide module with two light sources, and FIG. 2 is a cross-sectional view of a light guide module at the location of its light source with light beam paths indicated.

FIG. 1 elliptical light guide

DETAILED DESCRIPTION OF THE INVENTION

As can be seen, the module is formed by the plate secondary portion 4, extending all over its outer circumference into a tertiary portion 4, having a hem form arranged in the direction of orientation of the active surface of the plate secondary portion 4.

A cylindrical primary portion with a front recess 18 is formed on the opposite surface of the plate secondary portion 4 (see FIG.

2) to which the light source is adjacent

Preferably, the module is provided with two cylindrical primary portions

2, each of which is adjacent to one light source (preferably different in color), in this case a light-emitting LED.

A conical recess forming a branching is provided coaxially with each primary portion of the active surface of the plate secondary portion. The outer circumferential inclined surface 6 provided between the plate secondary part 4 with the tertiary part 5 is provided with at least some of its parts with a set of reflective pins

7, to provide reflection of the light coming from the secondary part 4 back to the secondary part, thereby covering the active surface of the module with light at the place of its shielding by recesses 3 (see Fig. 2).

The reflection pins 7 are designed in such a way that there is no incidence of light reflected by them with no conical recess 3.

Industrial applicability

Fiber-optic module usable especially in their interior, and emitting light colors.

according to the invention is to illuminate the exterior of so motor vehicles wherever the active surface of their

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List of reference numbers used:

- light source

- cylindrical primary part

- conical recess

- plate secondary part

- tertiary part

- sloping surface

- reflective wedge - pin

- front recess pr -Z55L.: * ·. ·· - ·· ' ^s * ”« * tf. ^: '' ^: <”* * ^: * 'P- ...............

Claims (4)

PATENTOVÉ Claims An elliptical light guide module, in particular for rear tail lamps and motor vehicle headlamps, comprising a plate secondary portion (4), extending over its entire outer periphery to a tertiary portion (5), in the form of a hem, arranged plate active orientation secondary part (4), taking the opposite desktop board secondary part (4) is created cylindrical primary part (2) p front recess (8), whom adjacent luminous source (1), and coaxial with primary parts (2) is in the active area board A conical recess (3) forming a Y-branch is provided in the secondary part (4), characterized in that the outer circumferential inclined surface (6) provided between the plate secondary part (4) and the tertiary part (5) has at least a portion thereof provided with at least two reflective pins (7), for ensure reflection lights back to the secondary parts (4) and thereby coverage active areas module light i in place her shielding by selecting (3). Elliptical light guide module according to claim 1, characterized in that it is provided with at least two cylindrical primary parts (2), each of which has one light source (1). Elliptical light guide module according to Claim 1 2, characterized in that the light sources (1) are light-emitting LEDs. An elliptical light guide module according to claim 1, characterized in that the planes forming the reflective (7) do not form a right angle between them.