Illuminable emblem

Abstract

The invention relates to an illuminable emblem, in particular for a motor vehicle, which is simple and inexpensive to produce and which permits easy identifiability in darkness.

Claims

1. An illuminable emblem comprising: a housing having a front cover and a rear-side housing base, wherein the front cover is transparent on a front side, wherein the front cover and the housing base are connected to each other and enclose a cavity, wherein a flat light conductor and a screen are arranged in the cavity such that light can emerge from the flat light conductor and can pass through the screen, wherein the screen is transparent at least in regions, wherein the flat light conductor has an at least partially encircling, raised edge region and a flat region, wherein the at least partially encircling region has at least one light coupling-in surface, wherein at least one illuminant is arranged adjacent to the coupling-in surface and is configured to emit light into the raised edge region through the coupling-in surface, wherein the raised edge region has a recess having a curved edge, wherein the curved edge is configured to deflect light emitted from the at least one illuminant in a circumferential direction and an axial direction.

2. The illuminable emblem according to claim 1, wherein the edge region of the recess is of parabolic design.

3. The illuminable emblem according to claim 1, wherein the recess in the raised edge region has two curved edges which are arranged symmetrically with respect to each other.

4. The illuminable emblem according to claim 1, wherein the raised edge region has an end surface which serves as the coupling-in surface for the light emitted by the at least one illuminant, wherein the at least one illuminant lies against the coupling-in surface or is arranged adjacent thereto.

5. The illuminable emblem according to claim 1, wherein the recess of the raised edge region comprises at least one partially released tongue, wherein the partially released tongue has a coupling-in surface for the light emitted by the at least one illuminant, wherein the at least one illuminant lies against the coupling-in surface or is arranged adjacent thereto.

6. The illuminable emblem according to claim 5, wherein the recess of the raised edge region comprises two partially released tongues which lie opposite each other and project toward one another, wherein each partially released tongue has a coupling-in surface arranged at an end region thereof, wherein the respective coupling-in surfaces are separated by a space and lie opposite each other, and wherein two illuminants are arranged between the two coupling-in surfaces of the tongues.

7. The illuminable emblem according to claim 1, wherein interfering optics are arranged in a transition region between the raised edge region and the flat region, said interfering optics configured to deflect light from the raised edge region into the flat region.

8. The illuminable emblem according to claim 1, wherein interfering optics are arranged in the flat region, said interfering optics configured to deflect light out of the flat region towards the front cover.

9. The illuminable emblem according to claim 8, wherein the interfering optics in the flat region are in the form of eroded surfaces on that side of the flat region which faces away from the front cover.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will be explained in more detail below on the basis of at least one exemplary embodiment with reference to the drawings, in which:

(2) FIG. 1 shows a schematic sectional view of the emblem,

(3) FIG. 2 shows a perspective illustration of parts of the emblem, as viewed from the rear side,

(4) FIG. 3 shows a perspective illustration of a light conductor according to the invention, and

(5) FIG. 4 shows a perspective illustration of a further exemplary embodiment of a light conductor according to the invention.

PREFERRED EMBODIMENT OF THE INVENTION

(6) FIG. 1 shows a schematic sectional view of an illuminable emblem 1 according to the invention which is usable, for example, as a cover, as a flap closure element for a lock or as a radome, in particular at the front or at the rear of a motor vehicle. Such an illuminable emblem may also be used in other ways.

(7) The illuminable emblem 1 has at least one illuminant which is switchable on and off and/or is also controllable in terms of its brightness and/or in terms of its color such that the emblem is illuminable. The emblem is illuminated here in particular from an inner region, such that, as viewed from the outside, in particular as viewed from the front of the emblem, said emblem is self-illuminating when the at least one illuminant is switched on.

(8) The illuminable emblem 1 has a housing 2 with a front cover 3 which is transparent on a front side and with a rear-side housing base 4. In a frontal view, the emblem here is, for example, of round or angular design, depending on the configuration of the emblem. The front cover 3 and the housing base 4 are preferably connected to each other in a sealed manner in order to enclose a cavity which, in the sealed exemplary embodiment, protects the elements arranged in the cavity from dirt and moisture. Should this not be necessary, it is also possible for the housing not to be formed in a sealed manner. In this case, the front cover and the housing base would merely be formed in a manner connected to each other, such as connected to each other directly or indirectly.

(9) A flat light conductor 6 and a screen 7 which is transparent at least in regions are arranged in the cavity 5, wherein the screen 7 is arranged between the front cover and the light conductor 6.

(10) The screen 7 is therefore formed in a manner such that it is transparent at least in regions because regions 8 therein are recessed or formed in a transparent manner in order to allow light to pass from the light conductor 6 towards the front cover 3 so that an observer standing in front of the front cover 3 sees that the emblem 1 is illuminated. The light therefore exits from the flat light conductor 6 towards the front cover and passes through the screen 7 and through the front cover 3.

(11) The recessed or transparent regions 8 can preferably produce a pattern which is intended to be identified as the pattern of the screen and therefore as the pattern of the emblem, for example a logo, etc.

(12) The screen 7 and the light conductor 6 are typically formed spaced apart from each other in their central flat region and take up a spacing a.

(13) The light conductor 6 and the housing base 4 are typically also formed spaced apart from each other in their central flat region and take up a spacing d.

(14) The flat light conductor 6 has an at least partially encircling, raised edge region 9 and a flat region 10.

(15) The raised edge region 9 here has at least one light coupling-in region 11 at which at least one illuminant 12 is arranged, for coupling light into the raised edge region 9. In this case, as FIGS. 2 to 4 show, deflecting means are provided in the region of the raised edge region 9, by means of which light can be deflected or is deflected from the at least one edge region 9 in the circumferential direction of the raised edge region 9 and/or in the flat region 10 of the flat light conductor 6. The light of the at least one illuminant 12 is thereby distributed in the raised edge region 9 and/or in the flat region 10, from which it can emerge.

(16) FIGS. 2 to 4 show that the raised edge region 9 is provided with a recess 13 in such a manner that an edge region 14 of the recess 13 is in the form of a flat deflecting means. The light which is fed by the illuminant 12 into the raised edge region is reflected at the flat deflecting means and distributed in the raised edge region 9, in particular in the circumferential direction and in an axial direction.

(17) FIG. 2 shows that the raised edge region 9 is at least partially formed on its end surface 15 with a type of toothing 16 in order to reflect light on the inner side of the toothing 16.

(18) The regions 8 which are formed in a recessed or transparent manner in order to allow light to pass from the light conductor 6 to the front cover 3 can also be seen in FIG. 2. Said regions 8 are formed, for example, figuratively.

(19) FIGS. 2 to 4 show that the edge region 14 of the recess 13 is of curved or parabolic design and serves as the deflecting means. Light which, coming from above or from the end surface 15, strikes against the edge region 14 is deflected and conducted further in the light conductor 6.

(20) It is particularly preferred here if the edge region 14 of the recess 13 forms two opposite flat deflecting means 20 which are in particular arranged symmetrically with respect to each other. As a result, the light can be distributed in the light conductor 6 in both directions. For this purpose, two illuminants 12 are preferably then also provided which are arranged in particular on the end surface 15 adjacent to the deflecting means 20. In particular, the illuminants 12 are designed as LEDs or the like and are placed onto the end surface 15 adjacent and in particular spaced apart from one another.

(21) The raised edge region 9 thus has an end surface 15 which serves as a coupling-in surface for the light of an illuminant 12, wherein the at least one illuminant 12 lies against the coupling-in surface or is arranged adjacent thereto.

(22) The exemplary embodiment of FIG. 4 shows that the recess 13 of the raised edge region 9 is designed in such a manner that at least one partially released tongue 21 is formed which has a coupling-in surface 22 for the light of an illuminant 12, wherein the at least one illuminant 12 lies against the coupling-in surface 22 or is arranged adjacent thereto. The coupling-in surface 22 forms a circumferential end of the tongue 21.

(23) In the exemplary embodiment of FIG. 4, two partially released tongues 21 are formed which lie opposite each other, wherein the respective coupling-in surfaces 22 lie opposite each other, and the illuminants 12 are arranged between the two coupling-in surfaces 22 of the tongue 21.

(24) For the deflection of the light from the raised edge region 9 towards the flat region 10, interfering optics 24 are arranged in the transition region 23 between the raised edge region 9 and the flat region 10, said interfering optics serving as the deflecting means for deflecting the light from the raised edge region 9 into the flat region 10.

(25) For the deflection of the light out of the flat region towards the front cover 3, interfering optics 25, see FIG. 1, are arranged in the flat region 10, said interfering optics serving as the deflecting means for deflecting the light out of the flat region.

(26) Said interfering optics 25 in the flat region are, for example, in the form of eroded surfaces on that side of the flat region 10 which faces away from the front cover 3.

(27) FIG. 1 furthermore shows that the housing base 4 forms a channel region 26 which is in particular completely encircling or only partially encircling and in which the illuminants 12 can be arranged.

(28) The screen 7 can be formed from a deep-drawn film which, for example, can be punched in order to form the regions 8. The non-transparent regions may also be printed, for example. The transparent regions may also be colored, for example, in order to obtain a, for example, milky appearance or impression. The housing base 4 is advantageously adhesively bonded or welded to the front cover 3, wherein they are advantageously produced individually or both from plastic. The housing base 4 is advantageously colored white, black or some other color, wherein, in the case of a white coloring, the degree of reflection is higher.

(29) The front cover 3 can advantageously be produced from a deep-drawn film which advantageously has, for example, plastic, such as, for example, PVC, sprayed therebehind.

LIST OF REFERENCE SIGNS

(30) 1 Emblem 2 Housing 3 Front cover 4 Housing base 5 Cavity 6 Light conductor 7 Screen 8 Recessed or transparent region 9 Partially encircling, raised edge region 10 Flat region 11 Light coupling-in region 12 Illuminant 13 Recess 14 Edge region of the recess 13 15 End surface 16 Toothing 20 Deflecting means 21 Tongue 22 Coupling-in surface 23 Transition region 24 Interfering optics 25 Interfering optics 26 Channel region