Lighting appliance for engine vehicles

Patent metadata

Field	Value
Publication number	US-10458618-B2
Application number	US-201615299229-A
Country	US
Kind code	B2
Filing date	Oct 20, 2016
Priority date	Oct 30, 2015
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

A light appliance, particularly a signal lamp for engine vehicles, is provided that comprises a primary optical unit (4) with at least one light source (8), a secondary optical unit (5) comprising at least one areal electro-luminescent diode (12) for emitting light with its light emitting surface (121), and at least one reflective surface (61) of a reflective device (6) for reflecting light from the primary optical unit (4) falling onto the reflective surface (61). At least one of the electro-luminescent diodes (12) of the secondary optical unit (5) is arranged, with respect to some of the reflective surfaces (61), in such a way that at least a part of the light beams from the primary optical unit (4), directed to the reflective surface (61), passes before falling onto the reflective surface (61) and/or after reflection from reflective surface (61) through light emitting surface (121) of diode (12).

First claim

The invention claimed is:

1. A light appliance for engine vehicles comprising:
a primary optical unit with at least one light source;
a secondary optical unit that comprises one or more electro-luminescent diodes for emitting light with a light emitting surface; and
at least one reflective surface of a reflective device for reflecting light from the primary optical unit falling onto the reflective surface,
wherein the at least one reflective surface comprises a first reflective surface,
wherein the electro-luminescent diodes comprise a first electro-luminescent diode having a rear surface,
wherein the first electro-luminescent diode of the secondary optical unit is arranged, with respect to the first reflective surface, in such a way that at least a part of the light beams from the primary optical unit directed to the first reflective surface passes, before falling onto the first reflective surface and after reflection from the first reflective surface, through a light-emitting surface of the first electro-luminescent diode,
wherein the first reflective surface is situated in an internal space or on the rear surface of the first electro-luminescent diode such that the first reflective surface does not entirely cover the rear surface of the first electro-luminescent diode.

2. The light appliance according to claim 1 , wherein the first reflective surface is configured for diffusing light.

3. The light appliance according to claim 1 , wherein the secondary optical unit includes at least two electro-luminescent diodes including at least one pair of electro-luminescent diodes positioned next to each other and emitting light beams of different colours.

4. The light appliance according to claim 1 , wherein at least one of the light sources of the primary optical unit is an LED diode.

5. The light appliance according to claim 1 , wherein two light sources of the primary optical unit are situated next to each other and emit light beams of different colour and/or at least one light source includes at least two chips for creating light beams of different colours.

6. The light appliance according to claim 1 , further comprising an optical element situated at one or more light sources for concentrating light beams to a precisely directed beam.

7. The light appliance according to claim 6 , wherein the optical element includes a reflector, a light guide, a lens, and/or a collimating element.

8. The light appliance according to claim 7 , wherein the optical element comprises a compact fixture fitted with at least one outlet surface.

9. The light appliance according to claim 1 , wherein the primary optical unit and/or the secondary optical unit are connected to a control unit for providing a required outlet characteristic of reflective outlet light trace and an emitted outlet light trace, wherein the light sources and/or the electro-luminescent diodes are controllable, alternately and/or jointly, by an electronic control unit to provide for day lightening, position light, fog light, reversing light, directing light, tail outline light, and/or head outline light.

10. The light appliance according to claim 1 , wherein the primary optical unit and secondary optical unit are installed in an internal chamber, wherein the light appliance further comprises a covering mask.

11. The light appliance according to claim 10 , further comprising an optical segment in the internal chamber configured for diffusing light beams.

12. The light appliance according to claim 1 , wherein the primary optical unit is configured for emitting a light beam of a different colour relative to a light beam emitted by the electro-luminescent diodes of the secondary optical unit.

13. The light appliance according to claim 1 , wherein the light source is housed on a printed circuit board fixed on a carrier comprising a cooler for removing heat generated by the light source.

14. The light appliance according to claim 1 , wherein the at least one reflective surface is configured for creating a required reflective outlet light trace and the electro-luminescent diodes are configured for creating a required emitted outlet light trace.

15. The light appliance according to claim 1 , wherein the light source is housed on a printed circuit board fixed on a carrier comprising a cooler for removing heat generated by the light source and wherein the at least one reflective surface is configured for creating a required reflective outlet light trace and the electro-luminescent diodes are configured for creating a required emitted outlet light trace.

Assignees

• Varroc Lighting Systems Sro

Inventors

• Gloss Tomas
• Mateju Tomas
• Stylarek Milan

Classifications

• F21S43/235

  Light guides · CPC title

• F21S43/40

  characterised by the combination of reflectors and refractors · CPC title

• F21S43/255

  Filters · CPC title

• F21S43/31 Primary

  Optical layout thereof · CPC title

• F21S43/315

  using total internal reflection · CPC title