ES2698564A1 - LED EMITTER AND REFLECTOR SET FOR VEHICLE HEADLIGHT (Machine-translation by Google Translate, not legally binding) - Google Patents
LED EMITTER AND REFLECTOR SET FOR VEHICLE HEADLIGHT (Machine-translation by Google Translate, not legally binding) Download PDFInfo
- Publication number
- ES2698564A1 ES2698564A1 ES201731008A ES201731008A ES2698564A1 ES 2698564 A1 ES2698564 A1 ES 2698564A1 ES 201731008 A ES201731008 A ES 201731008A ES 201731008 A ES201731008 A ES 201731008A ES 2698564 A1 ES2698564 A1 ES 2698564A1
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- ES
- Spain
- Prior art keywords
- reflector
- led emitter
- semiparaboloid
- vehicle headlight
- led
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/06—Optical design with parabolic curvature
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
CONJUNTO DE EMISOR LED Y REFLECTOR PARA FARO DE VEHÍCULOLED EMITTER AND REFLECTOR SET FOR VEHICLE HEADLIGHT
DESCRIPCIONDESCRIPTION
OBJETO DE LA INVENCIÓNOBJECT OF THE INVENTION
La presente invención se refiere a un conjunto de emisor led y reflector para el faro de un vehículo. Se encuadra en el sector de la técnica de la automoción.The present invention relates to a set of led emitter and reflector for the headlight of a vehicle. It fits into the sector of automotive technology.
ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION
En los faros con fuentes luminosas a base de emisores LED, se dispone una óptica que comprende un reflector en forma semiparaboloide compleja tumbada abierta superiormente o inferiormente (esto es, de forma que un plano superior o inferior imaginario la corta superiormente o inferiormente dejando la mitad o parte de la misma y definiendo el corte un borde o boca superior o inferior del paraboloide por donde entra la luz generada por el LED) y un emisor led luminoso orientado hacia dicho reflector, de forma que la luz reflejada por el paraboloide sale en forma de haz luminoso frontalmente, por la salida frontal definida entre el plano imaginario descrito y la parte inferior del paraboloide.In the headlights with light sources based on LED emitters, an optics is provided comprising a reflector in complex semi-paraboloidal shape lying open superiorly or inferiorly (that is, so that an imaginary upper or lower plane cuts it superiorly or inferiorly leaving half or part of it and defining the cut an upper or lower edge or mouth of the paraboloid where the light generated by the LED comes in) and a luminous led emitter oriented towards said reflector, so that the light reflected by the paraboloid comes out of light beam frontally, by the front exit defined between the imaginary plane described and the lower part of the paraboloid.
En general, los reflectores para las funciones cruce y ruta tienen forma compleja aproximada a la mitad de una parábola y los emisores led (montados sobre una tarjeta electrónica, PCB) se ponen en horizontal (con eventualmente una inclinación por el desmoldeo, típicamente 1,5° o 3°, eventualmente hasta 5°) posicionado por encima del reflector, o en unos casos por debajo, con el reflector boca abajo.In general, the reflectors for the cross-over and route functions have a complex shape that approximates half of a parabola and the LED emitters (mounted on an electronic card, PCB) are placed horizontally (with a possible inclination by the demoulding, typically 1, 5 ° or 3 °, possibly up to 5 °) positioned above the reflector, or in some cases below, with the reflector face down.
Como el cono principal de luz del emisor led mide típicamente 60° desde su propio eje central, el reflector nunca llega a interceptar por completo dicho cono de luz. Por este motivo hay una intrínseca perdida de eficiencia en los faros.Since the main light cone of the LED emitter typically measures 60 ° from its own central axis, the reflector never completely intercepts the light cone. For this reason there is an intrinsic loss of efficiency in the headlights.
DESCRIPCIÓN DE LA INVENCIÓNDESCRIPTION OF THE INVENTION
El conjunto de emisor led y reflector para faro de vehículo de la invención tiene una configuración que consigue una intercepción completa o casi completa entre haz generado por el emisor led y el reflector, aumentando la eficiencia del alumbrado. The set of led emitter and reflector for vehicle headlight of the invention has a configuration that achieves a complete or almost complete interception between beam generated by the LED emitter and the reflector, increasing the efficiency of the lighting.
El conjunto es del tipo que comprenden un reflector en forma semiparaboloide compleja tumbada abierta superior o inferiormente con una salida frontal del haz luminoso y un emisor led luminoso orientado hacia dicho reflector, esto es, posicionado superiormente y orientado hacia abajo si el paraboloide está abierto o dirigido superiormente, o posicionado inferiormente y orientado hacia arriba si el paraboloide está abierto o dirigido inferiormente, y de acuerdo con la invención se ha previsto que el plano superficial del emisor led se encuentre formando un ángulo negativo mayor a cinco grados respecto al plano imaginario que define el borde (superior o inferior) del semiparaboloide.The assembly is of the type comprising a reflector in a complex semiparaboloid shape lying open superiorly or inferiorly with a frontal exit of the light beam and a luminous led emitter oriented towards said reflector, that is, positioned superiorly and oriented downwards if the paraboloid is open or directed superiorly, or positioned inferiorly and oriented upwards if the paraboloid is open or directed inferiorly, and according to the invention it is provided that the surface plane of the LED emitter is forming a negative angle greater than five degrees with respect to the imaginary plane that defines the edge (top or bottom) of the semiparaboloid.
Con esta solución se consigue interceptar el máximo ángulo o amplitud del cono de luz del emisor led, consiguiendo mejorar las prestaciones luminosas del faro por un lado, y por otra reducir la potencia del emisor led (y el consumo de energía) sin reducir las prestaciones del faro.With this solution it is possible to intercept the maximum angle or amplitude of the cone of light of the led emitter, getting to improve the light performance of the headlight on the one hand, and on the other reduce the power of the led emitter (and the power consumption) without reducing the performance of the lighthouse.
Pero no solo eso, también como ventaja inesperada de la configuración propuesta, se ha conseguido reducir las dimensiones del reflector, ya que para conseguir una misma amplitud del haz luminoso saliente se puede reducir la amplitud del reflector paraboloide, y aprovechar toda su amplitud a diferencia de la situación actual, donde parte de la superficie del paraboloide está desaprovechada ocupando un espacio. Otra ventaja inesperada de la configuración propuesta es la eliminación del eventual deslumbramiento por rayos directos del LED, ya que la inclinación negativa en esa magnitud (plano inclinado de los LED) funciona como pantalla de protección para rayos parásitos y/o directos.But not only that, but also as an unexpected advantage of the proposed configuration, it has been possible to reduce the dimensions of the reflector, since in order to achieve the same amplitude of the outgoing light beam, the amplitude of the paraboloid reflector can be reduced, and its full range can be used unlike of the current situation, where part of the surface of the paraboloid is wasted occupying a space. Another unexpected advantage of the proposed configuration is the elimination of possible glare by direct rays of the LED, since the negative inclination in that magnitude (inclined plane of the LEDs) works as a protective screen for parasitic and / or direct rays.
Como plano superficial del emisor led en el presente documento se entiende la superficie difusora del emisor led, esto es, el plano superficial del emisor led perpendicular al eje del cono de luz generado por el mismo. Como ángulo negativo se entiende que la apertura de dicho ángulo tiende a dirigir el cono luminoso hacia el vértice del semiparaboloide, y no hacia su rama.The surface plane of the LED emitter in the present document is understood as the diffusing surface of the LED emitter, that is, the surface plane of the LED emitter perpendicular to the axis of the cone of light generated by it. As a negative angle it is understood that the opening of said angle tends to direct the light cone towards the apex of the semiparaboloid, and not towards its branch.
DESCRIPCIÓN DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS
Las figuras 1 y 2.- Muestran sendas vistas en sección lateral del conjunto de la invención en dos focos con reflectores diferentes, y sendos detalles ampliados de las mismas. Figures 1 and 2 show two views in side section of the assembly of the invention in two foci with different reflectors, and two enlarged details thereof.
REALIZACIÓN PREFERENTE DE LA INVENCIÓNPREFERRED EMBODIMENT OF THE INVENTION
El conjunto (1) de emisor led (2) y reflector (3) para faro (4) de vehículo de la invención es del tipo que comprenden un reflector (3) en forma semiparaboloide compleja tumbada abierta superior o inferiormente, con una salida frontal (5) del haz luminoso (6) y un emisor led (2) luminoso orientado hacia dicho reflector (3), donde de acuerdo con la invención, el plano superficial (7) (ver detalles de las figuras) del emisor led (2) se encuentra formando un ángulo a negativo mayor a cinco grados respecto al plano imaginario (8) que define el borde (9) del semiparaboloide.The set (1) of LED emitter (2) and reflector (3) for headlight (4) of vehicle of the invention is of the type comprising a reflector (3) in complex semi-paraboloidal shape lying open upper or lower, with a front exit (5) of the light beam (6) and a bright emitter (2) led towards said reflector (3), where according to the invention, the surface plane (7) (see details of the figures) of the LED emitter (2) ) is found forming a negative angle a greater than five degrees with respect to the imaginary plane (8) that defines the edge (9) of the semiparaboloid.
Más concretamente el ángulo a negativo se encontrará comprendido entre cinco y treinta grados, en función de la geometría semiparaboloide del reflector (3), para que el cono principal (11) de luz del emisor led (2), que mide típicamente 60°, abarque toda la amplitud de dicho semiparaboloide. En las figuras 1 y 2 se muestran estas amplitudes máxima y mínima del ángulo a para geometrías distintas del reflector (3).More specifically, the negative angle a will be between five and thirty degrees, depending on the semiparaboloid geometry of the reflector (3), so that the main cone (11) of the LED light emitter (2), which typically measures 60 °, cover all the amplitude of said semiparaboloid. In figures 1 and 2 these maximum and minimum amplitudes of the angle a are shown for different geometries of the reflector (3).
Dado que el emisor led (2) se encuentra normalmente montado en posición plana en una placa (10) de circuito impreso, se aprovechará ésta para conseguir el ángulo a buscado, encontrándose por tanto preferentemente montada dicha placa (10) de circuito impreso con dicho ángulo a negativo respecto al plano imaginario (8) que define el borde (9) del semiparaboloide.Since the LED emitter (2) is normally mounted in a flat position on a printed circuit board (10), this will be used to achieve the desired angle, therefore, said printed circuit board (10) is preferably mounted with said negative angle to the imaginary plane (8) that defines the edge (9) of the semiparaboloid.
Descrita suficientemente la naturaleza de la invención, se indica que la descripción de la misma y de su forma de realización preferente debe interpretarse de modo no limitativo, y que abarca la totalidad de las posibles variantes de realización que se deduzcan del contenido de la presente memoria y de las reivindicaciones. The nature of the invention being sufficiently described, it is indicated that the description thereof and its preferred embodiment must be interpreted in a non-limiting manner, and that it encompasses all of the possible variants of embodiment that are deduced from the content of the present specification. and of the claims.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201731008A ES2698564A1 (en) | 2017-08-03 | 2017-08-03 | LED EMITTER AND REFLECTOR SET FOR VEHICLE HEADLIGHT (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201731008A ES2698564A1 (en) | 2017-08-03 | 2017-08-03 | LED EMITTER AND REFLECTOR SET FOR VEHICLE HEADLIGHT (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2698564A1 true ES2698564A1 (en) | 2019-02-05 |
Family
ID=65207711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201731008A Withdrawn ES2698564A1 (en) | 2017-08-03 | 2017-08-03 | LED EMITTER AND REFLECTOR SET FOR VEHICLE HEADLIGHT (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2698564A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050094401A1 (en) * | 2003-11-04 | 2005-05-05 | Simon Magarill | Side reflector for illumination using light emitting diode |
| EP2020369A1 (en) * | 2007-07-05 | 2009-02-04 | Busch & Müller KG | Headlamp for a bicycle |
| US20110038171A1 (en) * | 2009-08-04 | 2011-02-17 | Mitsuhiro Uchida | Vehicle light |
| US20150267887A1 (en) * | 2014-03-18 | 2015-09-24 | Goodrich Lighting Systems Gmbh | Lighting structure for an exterior vehicle light unit and exterior vehicle light unit comprising the same |
-
2017
- 2017-08-03 ES ES201731008A patent/ES2698564A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050094401A1 (en) * | 2003-11-04 | 2005-05-05 | Simon Magarill | Side reflector for illumination using light emitting diode |
| EP2020369A1 (en) * | 2007-07-05 | 2009-02-04 | Busch & Müller KG | Headlamp for a bicycle |
| US20110038171A1 (en) * | 2009-08-04 | 2011-02-17 | Mitsuhiro Uchida | Vehicle light |
| US20150267887A1 (en) * | 2014-03-18 | 2015-09-24 | Goodrich Lighting Systems Gmbh | Lighting structure for an exterior vehicle light unit and exterior vehicle light unit comprising the same |
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| BA2A | Patent application published |
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