ES2691796T3 - Luminaires with asymmetric light radiation - Google Patents
Luminaires with asymmetric light radiation Download PDFInfo
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- ES2691796T3 ES2691796T3 ES14162432.0T ES14162432T ES2691796T3 ES 2691796 T3 ES2691796 T3 ES 2691796T3 ES 14162432 T ES14162432 T ES 14162432T ES 2691796 T3 ES2691796 T3 ES 2691796T3
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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
- F21V5/00—Refractors for light sources
- F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
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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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
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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
- F21V5/00—Refractors for light sources
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
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Abstract
Óptica de placas de lentes preferentemente para luminarias con radiación de luz asimétrica, las cuales como fuente de luz presentan placas de circuito impreso (1) con LED's SMD (2), con una placa de lentes (9) de material transparente, preferiblemente de plástico, situada inmediatamente delante, en la cual delante de cada LED está integrado un sistema de lentes óptico para desviar la luz, en donde la óptica (10) se apoya todo alrededor del LED (2) con su cara posterior sobre la placa de circuito impreso (1) y presenta una cámara hueca que está dividida por un nervio de lente (4) situado a un lado del LED (2) en una cavidad principal (5) para alojar al LED (2) y en una cavidad secundaria (6) adyacente y en donde sobre la cara exterior hay formada una bóveda de lente (7) convexa sobre la cual hay moldeada preferentemente una costilla de guía (8) de la luz, caracterizada por que la parte (11a) de la luz LED (11) que entra a través de la superficie de forma libre (5a) de la cavidad principal (5) está desviada en su totalidad sobre la bóveda de lentes (7) convexa y sale al ambiente a través de ella, y por que la otra parte (11b) de la luz (11) entra a través de la lente convergente (4a) del nervio de lente (4) lateral y sale a través de la superficie (4b) situada enfrente, está enfocada en su totalidad sobre la superficie de lente (6a) de la cavidad secundaria (6), desde allí cae sobre la superficie reflectante (8b) de la costilla de guía de luz (8) y se refleja esencialmente en su totalidad sobre ella y sale al ambiente atravesando la superficie de lente (8a) delantera de la costilla de guía de luz (8).Optical lens plates preferably for luminaires with asymmetric light radiation, which as a light source have printed circuit boards (1) with SMD LEDs (2), with a lens plate (9) made of transparent material, preferably plastic , located immediately in front, in which an optical lens system to deflect light is integrated in front of each LED, where the optics (10) rests all around the LED (2) with its rear face on the printed circuit board (1) and has a hollow chamber that is divided by a lens rib (4) located to one side of the LED (2) in a main cavity (5) to house the LED (2) and in a secondary cavity (6) adjacent and where on the outer face there is formed a convex lens dome (7) on which a light guide rib (8) is preferably molded, characterized in that the part (11a) of the LED light (11) entering through the free-form surface (5a) of the cav The main unit (5) is completely deflected on the convex lens vault (7) and enters the environment through it, and because the other part (11b) of the light (11) enters through the converging lens (4a) of the lateral lens rib (4) and exits through the opposite surface (4b), is focused entirely on the lens surface (6a) of the secondary cavity (6), from there it falls on the reflecting surface (8b) of the light guide rib (8) and is essentially reflected entirely thereon and exits the environment by passing through the front lens surface (8a) of the light guide rib (8).
Description
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DESCRIPCIONDESCRIPTION
Luminarias con radiacion luminosa asimetricaLuminaires with asymmetrical light radiation
El invento se refiere a una optica de placas de lentes para luminarias LED con distribucion asimetrica de la luz, de acuerdo con el preambulo de la reivindicacion 1 y el documento WO 2013/152199A1.The invention relates to an optics of lens plates for LED luminaires with asymmetrical distribution of light, according to the preamble of claim 1 and WO 2013 / 152199A1.
Este escrito muestra una desviacion de la luz irradiada hacia abajo por medio de una costilla opticamente activa la cual se encuentra en el interior de la optica y desvfa la luz que sobre ella cae mediante una reflexion total en una zona angular mas favorable. Las condiciones geometricas marginales, especialmente una superficie exterior de lentes utilizada conjuntamente permiten ciertamente hacer util solo una pequena parte de la luz radiada hacia abajo, por que muchos rayos de luz estan por fuera del angulo de reflexion total o esta superficie no existe en absoluto, o son desviados a zonas irrelevantes y de esta manera muchas distribuciones de luz deseadas no pueden ser atendidas eficazmente.This paper shows a deviation of the light irradiated downwards by means of an optically active rib which is inside the optics and deflects the light that falls on it by means of a total reflection in a more favorable angular zone. The marginal geometrical conditions, especially an outer surface of lenses used together, certainly make it possible to make use of only a small part of the light radiated downwards, because many light rays are outside the total reflection angle or this surface does not exist at all, or they are diverted to irrelevant areas and in this way many desired distributions of light can not be effectively served.
Desvfos de luz grandes necesitan una optica de varias lentes o una reflexion total para desviar la luz. El documento CN 10347 1033A describe basandose en la figura 25, el paso de los rayos de una optica de este tipo la cual con una superficie totalmente reflectante refleja la luz posterior sobre el lado de la via de rodadura. Pero aqrn esta representado tambien que a pesar de ello por detras se pierde luz. Tambien el documento 2014/0085905A1 (Broughton) muestra una forma de funcionamiento similar, en la figura 28 se puede reconocer la perdida de luz hacia atras.Large light deviations require an optics of several lenses or a total reflection to deflect light. The document CN 10347 1033A describes based on figure 25, the passage of the rays of an optics of this type which with a totally reflecting surface reflects the rear light on the side of the rolling track. But it is also represented that in spite of this light is lost behind. Also document 2014 / 0085905A1 (Broughton) shows a similar way of operation, in figure 28 the loss of light can be recognized backwards.
La mision del invento consiste en disenar una optica adecuada, la cual desvfe toda la parte de la luz LED orientada contra el poste y la pared de la casa (la parte posterior) y por ello hasta ahora perdida y molesta, tanto como para que esta luz sea por completo util para la distribucion de luz deseada y tambien permita una fabricacion sencilla y economica sobre plastico transparente, en disposicion multiple en una placa de lentes,The mission of the invention is to design an appropriate optics, which shifts all the part of the LED light against the post and the wall of the house (the back) and therefore lost and annoying so much so that this light is completely useful for the distribution of desired light and also allows a simple and economical manufacture on transparent plastic, in multiple arrangement in a lens plate,
En general se puede decir: Los diodos luminosos, abreviadamente LED's, se han utilizado en la tecnica de la iluminacion como fuentes eficientes de luz. Presentan formas constructivas y calidades de luz diversas, pero en sus propiedades de tecnica luminosa se diferencian relativamente poco unos de otros. La mayor parte de los LED's son los llamados reflector Cosinus por que estos representan un optimo en potencia de luz y eficiencia con costes de fabricacion muy pequenos y tamanos constructivos muy pequenos. La potencia luminosa por LED es diferente segun sea la construccion interior y el tamano de los semiconductores, a pesar de ello los LED's se diferencian exteriormente muy poco. Por ello se pueden desarrollar opticas que en sus parametros esenciales sean adecuadas para tipos de LED's que se encuentran en el mercado o que pueden ser facilmente adaptadas. Sin embargo, segun sea la mision del plan de iluminacion a las opticas se les plantean exigencias fuertemente diferentes respecto de la distribucion de luz que tienen que producir.In general it can be said: The LEDs, abbreviated LED's, have been used in the lighting technique as efficient sources of light. They present constructive forms and different qualities of light, but in their properties of luminous technique they differ relatively little from each other. Most of the LEDs are the so-called Cosinus reflector because they represent an optimum in light power and efficiency with very small manufacturing costs and very small construction sizes. The luminous power by LED is different according to the interior construction and the size of the semiconductors, in spite of this the LED's differ very little externally. For this reason optics can be developed that in their essential parameters are suitable for types of LED's that are in the market or that can be easily adapted. However, depending on the mission of the illumination plan to the opticians, they are faced with strongly different demands regarding the distribution of light that they have to produce.
Aqrn solo se hara referencia a una optica que encuentra aplicacion en la iluminacion de calles. Estas luminarias estan situadas principalmente en el borde de las calles, en la zona de acceso entre las vfas de rodadura sobre postes rectos sin brazos, tambien sin poder esperar molestas influencias en el trafico. Sin embargo esto origina una radiacion luminosa oblicua para poder iluminar tambien el lado opuesto de la calle o una calle mas ancha. Adicionalmente se presentan exigencias sobre el deslumbramiento y ensuciamiento de la luz, es por ello que hoy por hoy ya no se desea una sencilla inclinacion de las lamparas para una iluminacion mas amplia. Por tanto, hay que evitar una luz que irradie hacia atras, en direccion del poste o hacia la pared de la casa o hay que desconectarla para no molestar a los que se encuentran proximos. La suma de estas exigencias exige sistemas de iluminacion cuya superficie de salida de la luz sea horizontal, debiendo irradiar la luz esencialmente con inclinacion alejandose del poste.Aqrn will only refer to an optics that finds application in street lighting. These luminaires are located mainly on the edge of the streets, in the area of access between the treads on straight poles without arms, also without being able to wait for annoying influences in the traffic. However, this causes an oblique light radiation to be able to illuminate also the opposite side of the street or a wider street. In addition, there are demands on glare and light pollution, which is why today we no longer want a simple inclination of the lamps for a wider lighting. Therefore, it is necessary to avoid a light that radiates backwards, in the direction of the post or towards the wall of the house or it must be disconnected so as not to disturb those who are nearby. The sum of these requirements requires lighting systems whose light output surface is horizontal, the light having to radiate essentially inclined away from the pole.
Para una lampara como esta se ofrece una fuente de luz en forma de una placa de circuito impreso plana, horizontal, sobre la cual estan situados los LED's en separaciones mas o menos regulares de unos respecto de otros e irradiando su luz hacia abajo. La luz es distribuida segun se desee a traves de lentes situadas delante de los LED's las cuales estan integradas en una placa comun de material transparente llamada placa de lentes que al mismo tiempo forma tambien la proteccion contra la humedad y las inclemencias del tiempo. La exigencia tecnica consiste ahora en desarrollar una optica para estos LED's la cual reuna toda la radiacion de luz en forma semiesferica del LED y la dirija exactamente en la distribucion de luz que se necesita. Cuanto mejor se consiga esto, tanto mas eficiente es la iluminacion y con ello mas barata de costes en el consumo de energfa. Ademas una optica de este tipo debe ser tan facil de fabricar que pueda ser fabricada en colocacion por docenas e incluso por centenas en una placa de lentes comun de este tipo por el metodo de inyeccion, de un plastico transparente, como plexiglas o policarbonato, en donde solo se debe prestar atencion a un espesor de pared lo mas uniforme posible con solo pequenas acumulaciones de material en las opticas y a una desmoldeabilidad sencilla. Las opticas conocidas hasta la fecha solo cumplen estas exigencias de manera insuficiente. Una geometna de lentes sencilla no esta en condiciones la de desviar luz tanto como se desee. Por tanto estamos sufriendo una perdida de energfa relativamente grande.For a lamp such as this one offers a light source in the form of a flat, horizontal printed circuit board, on which the LEDs are located in more or less regular separations from one another and radiating their light downwards. The light is distributed as desired through lenses located in front of the LED's which are integrated in a common plate of transparent material called a lens plate that at the same time also protects against humidity and inclement weather. The technical requirement is now to develop an optics for these LEDs which gather all the light radiation in a hemispherical form of the LED and direct it precisely in the distribution of light that is needed. The better this is achieved, the more efficient the lighting is and the cheaper the cost of energy consumption. In addition, such an optics must be so easy to manufacture that it can be manufactured in dozens or even hundreds of places on a common lens plate of this type by the injection method, of a transparent plastic, such as plexiglas or polycarbonate, in where only attention should be paid to a wall thickness as uniform as possible with only small accumulations of material in the optics and a simple demoulding. The opticians known to date only meet these requirements insufficiently. A simple lens geometry is not able to deflect light as much as desired. Therefore we are suffering a relatively large loss of energy.
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Los documentos chinos CN 102102851 A, CN 201764411 U y CN 101699148 A muestran tales opticas que ante todo distribuyen la luz en la direccion longitudinal de la calle, la radiacion oblicua se genera por un espacio hueco para el LED correspondientemente inclinado, pero en donde para una iluminacion suficientemente oblicua la propia iluminacion debe ser inclinada adicionalmente como aproximadamente se presenta en el documento CN 102102851 A, lo que en Europa no es deseado debido al deslumbramiento y el ensuciamiento de la luz.The Chinese documents CN 102102851 A, CN 201764411 U and CN 101699148 A show such optics that above all distribute the light in the longitudinal direction of the street, the oblique radiation is generated by a hollow space for the LED correspondingly inclined, but where for a sufficiently oblique illumination the illumination itself must be further inclined as approximately presented in the document CN 102102851 A, which in Europe is not desired due to the glare and the fouling of the light.
Otros fabricantes trabajan con opticas individuales parcialmente muy complicadas que estan formadas por LED's y que por giros y mezclas pueden modificar la distribucion de luz de una lampara.Other manufacturers work with partially complicated individual optics that are formed by LEDs and that by turns and mixtures can modify the light distribution of a lamp.
Para poder desviar la luz, grandes desviaciones de luz necesitan una optica formada por varias lentes o una reflexion total. El documento CN ya mencionado describe en la figura 25 el recorrido de los rayos de una optica de este tipo, la cual con una superficie reflectante total refleja sobre la via de rodadura la luz que va hacia atras. Pero aqrn tambien esta representado que a pesar de esto se pierde luz hacia atras.In order to be able to deflect light, large deviations of light require an optics formed by several lenses or a total reflection. The document CN already mentioned describes in figure 25 the path of the rays of an optics of this type, which with a total reflective surface reflects on the path of rolling the light that goes backwards. But it is also represented that in spite of this light is lost backwards.
La mision del invento consiste en disenar una optica adecuada de tal manera que toda la parte de la luz LED dirigida hacia el poste o las paredes de la casa hasta ahora perdida y por ello molesta, sea desviada tanto que esta luz al completo sea util para la distribucion de luz deseada y tambien, en una disposicion simple en una placa de lentes, permita una fabricacion sencilla y economica con un plastico transparente. Esto sera resuelto por las caractensticas expuestas en la parte caracterizante de la reivindicacion 1.The mission of the invention consists in designing an adequate optics in such a way that all the part of the LED light directed towards the post or the walls of the house so far lost and therefore annoying, is diverted so much that this complete light is useful for the desired light distribution and also, in a simple arrangement in a lens plate, allow a simple and economical manufacture with a transparent plastic. This will be solved by the features set forth in the characterizing part of claim 1.
El invento sera acarado ahora sobre la base de los dibujos. Se muestra:The invention will now be finished on the basis of the drawings. It shows:
La Figura 1, la optica acorde con el invento en corte en planta, desde arriba y lateral con todos los rayos en forma de una representacion de alambre,Figure 1, the optics according to the invention cut in plan, from top and side with all the rays in the form of a representation of wire,
La Figura 2, la optica acorde con el invento desde delante y desde atras en una vista axiometrica,Figure 2, the optics according to the invention from the front and from the back in an axiometric view,
La Figura 3, la distribucion de luz simulada en dos representaciones graficas habituales, yFigure 3, the distribution of simulated light in two usual graphical representations, and
La Figura 4, un corte a traves de una placa de lentes acorde con el invento, con placa de circuito impreso yFigure 4, a section through a lens plate according to the invention, with printed circuit board and
detalles de placas de molde de la herramienta de inyeccion.details of mold plates of the injection tool.
La figura 1 muestra el montaje de principio de una optica 10. Sobre una placa de circuito impreso se asienta un LED SMD 2 habitual en el mercado cuyo semiconductor 3 representa la propia fuente de luz. En LED's de alta potencia, se coloca sobre el una lente LED como proteccion. LED's de media potencia tienen un rebaje en el cual se encuentra el semiconductor y esta protegido por fundicion. Independientemente de esto, se genera una radiacion de luz en forma semiesferica con intensidad decreciente hacia cero hacia el exterior, conocida generalmente como distribucion de Lambert o de Cosinus.Figure 1 shows the principle assembly of an optical 10. On a printed circuit board sits a SMD 2 LED usual on the market whose semiconductor 3 represents the light source itself. In high power LED's, an LED lens is placed on it as protection. Medium power LEDs have a recess in which the semiconductor is located and is protected by cast iron. Regardless of this, a light radiation is generated in a hemispherical manner with decreasing intensity towards zero towards the outside, generally known as the Lambert or Cosinus distribution.
El LED esta rodeado por una camara hueca de la optica, la cual mediante un nervio de lente 4 se divide en una cavidad principal 5 que aloja al LED 2, y una cavidad secundaria 6. Por el lado de la cavidad principal 5 el nervio de lente 4 presenta una superficie optica que actua como lente convergente 4a convexa que es un lado de la cavidad secundaria 6, aqrn una superficie plana 4b, pero tambien podna estar curvada como se desee. La cavidad principal 5 esta limitada por un lado por la lente convergente 4a, por el otro lado por una superficie de forma libre 5a curvada de forma libre que colabora especialmente activa por dispersion y concentracion parciales de la luz a la formacion de la distribucion de luz deseada. La siguiente superficie 5b no tiene ninguna mision optica, solamente cierra la cavidad principal 5 hacia la placa de circuito impreso 1.La cavidad secundaria 6 esta formada por un lado por la superficie 4b del nervio de lentes, por otro lado por una superficie de lentes 6a concava que actua por lo menos dispersando la luz. La superficie 6b limftrofe con ella no tiene ninguna importancia optica, solamente cierra la cavidad secundaria 6 hacia la placa de circuito impreso 1.The LED is surrounded by a hollow camera of the optics, which through a lens rib 4 is divided into a main cavity 5 that houses the LED 2, and a secondary cavity 6. On the side of the main cavity 5 the nerve of lens 4 has an optical surface that acts as a converging lens 4a convex which is one side of the secondary cavity 6, here a flat surface 4b, but could also be curved as desired. The main cavity 5 is bounded on one side by the converging lens 4a, on the other side by a free-form curved free-form surface 5a which cooperates especially by partial dispersion and concentration of the light to the formation of the light distribution desired. The next surface 5b has no optical mission, it only closes the main cavity 5 towards the printed circuit board 1.The secondary cavity 6 is formed on one side by the surface 4b of the lens rib, on the other hand by a lens surface 6a concave that acts at least scattering light. The surface 6b bordering on it has no optical importance, it only closes the secondary cavity 6 towards the printed circuit board 1.
La cara exterior de la optica 10 esta formada por una boveda de lente 7 con curvatura cambiante la cual se extiende esencialmente sobre la camara hueca de la optica. Directamente unida a ella se encuentra una costilla 8 para desvfo de luz que principalmente aparece curvada la cual la mayor parte de las veces se introduce un poco en la boveda de lente 7, pero tambien podna estar totalmente separada de ella. Se extiende sobre la cavidad secundaria 6 y sobresale claramente de ella. La costilla 8 para desvfo de luz esta formada por una superficie de lente 8a convexa sobre el lado de la boveda de lente 7 y por una superficie de reflexion 8b de forma libre responsable principalmente para la reflexion total, por el otro lado.The outer face of the optics 10 is formed by a lens vault 7 with changing curvature which essentially extends over the hollow optical chamber. Directly attached to it is a rib 8 for light deflection which mainly appears curved which most of the time is introduced a little into the lens vault 7, but could also be completely separated from it. It extends over the secondary cavity 6 and protrudes clearly from it. The rib 8 for light deflection is formed by a convex lens surface 8a on the side of the lens vault 7 and by a reflection surface 8b of free form responsible mainly for the total reflection, on the other side.
La optica 10 limita por todos sus lados con una placa de lente 9 con espesor por lo general constante, en la cual esta integrada.The optics 10 limits on all sides with a lens plate 9 with generally constant thickness, in which it is integrated.
El semiconductor 3 del LED 2 irradia luz 11 en forma semiesferica la cual cae o sobre la superficie de forma libre 5a o sobre la lente convergente 4a del nervio de lente 4. La luz 11a que cae sobre la superficie de forma libre 5a es desviada por completo hacia la boveda de lente 7 desde donde irradia al ambiente. Su intensidad y direccion vendra determinada por el juego conjunto de la superficie de forma libre 5a y la boveda de lente 7.The semiconductor 3 of the LED 2 radiates light 11 in a hemispherical shape which falls either on the free-form surface 5a or on the converging lens 4a of the lens rib 4. The light 11a falling on the free-form surface 5a is deflected by complete to the lens vault 7 from where it radiates to the environment. Its intensity and direction will be determined by the joint play of the free-form surface 5a and the lens-vault 7.
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La luz 11b que cae sobre la lente convergente 4a del nervio de lente 4 sale a traves de la superficie 4b fuera del nervio de lente, en donde ante todo fue reunida en vertical y orientada horizontalmente de manera que choca toda ella contra la superficie de lente 6a concava. Desde allf es desviada y dispersada de manera que en el siguiente encuentro con la superficie de reflexion 8a es reflejada totalmente y sale por la superficie de lente 7a de la costilla de desvfo de luz. De este modo la luz 11b sufre en su mayor parte una desviacion de mas de sobre 90° hasta aproximadamente 180° , en donde adicionalmente las cuatro superficies de reflexion 4a, 4b, 6a, 8a y la superficie de reflexion 8b son responsables de un resultado favorable de la distribucion.The light 11b falling on the converging lens 4a of the lens rib 4 exits through the surface 4b outside the lens rib, where it was first gathered vertically and oriented horizontally so that it strikes all of it against the lens surface 6a concave From there it is deflected and dispersed so that at the next encounter with the reflection surface 8a it is fully reflected and exits the lens surface 7a of the light deflection rib. In this way the light 11b suffers for the most part a deviation of more than about 90 ° to about 180 °, wherein additionally the four reflection surfaces 4a, 4b, 6a, 8a and the reflection surface 8b are responsible for a result favorable distribution.
Como se ve, cada rayo de luz es conducido provechosamente a traves de la optica y desviado a la zona deseada de distribucion. En direccion del poste o de la fachada de la casa no se irradia practicamente ninguna luz, lo que en conjunto tambien aporta una solucion muy eficaz. Es publico que la exacta sintoma de unos con otras, de ambos lazos luminosos y las distribuciones de luz asf generadas, las posibilidades de dirigir la luz en el interior de esta optica y las variables de diseno de las superficies de forma libre solo pueden ser determinadas mediante el camino de la simulacion. Igualmente es conocido que una optica acorde con el invento puede generar distribuciones de luz fuertemente diferentes cuando se modifican solo un poco algunas geometnas manteniendo los principios de funcionamiento.As you can see, each ray of light is profitably driven through the optics and diverted to the desired zone of distribution. In the direction of the post or the facade of the house there is practically no light radiating, which together also provides a very effective solution. It is public that the exact symptom of each other, of both light loops and the distributions of light thus generated, the possibilities of directing the light inside this optics and the design variables of the free-form surfaces can only be determined through the path of simulation. It is also known that an optics according to the invention can generate strongly different light distributions when some geometries are modified only a bit while maintaining the principles of operation.
La figura 2 muestra la optica anteriormente presentada en representacion visible, a la derecha desde delante o desde el exterior, a la izquierda desde detras o desde el lado de la placa de circuito impreso.Figure 2 shows the optics previously presented in visible representation, to the right from the front or from the outside, to the left from behind or from the side of the printed circuit board.
La figura 3 muestra, en dos representaciones habituales, la distribucion de luz obtenida por simulacion segun la tecnica luminosa de las geometnas de optica representadas. La grafica de arriba es una representacion polar habitual en seccion a traves del cono de luz a lo largo y transversal a la calle, la representacion inferior muestra toda la distribucion de luz en un diagrama isocandela.Figure 3 shows, in two usual representations, the distribution of light obtained by simulation according to the light technique of the represented optical geometries. The graph above is a typical polar representation in section through the cone of light along and across the street, the lower representation shows the entire distribution of light in an isocandela diagram.
La figura 4 muestra un corte a traves de una placa de lentes 9 con opticas 10 acordes con el invento. La distancia mas pequena posible entre dos opticas vecinas esta determinada por la mutua sombra, que se puede determinar de la manera mas segura por simulacion. Depende de la distribucion de luz, del exacto recorrido de los rayos y de la posicion de la optica vecina. Para ello, ambas opticas deben ser probadas en sombreados opuestos. Los rayos ifmite de luz 11c determinan aqrn la separacion minima de las opticas en la direccion representada.Figure 4 shows a cut through a lens plate 9 with optics 10 according to the invention. The smallest possible distance between two neighboring optics is determined by the mutual shadow, which can be determined in the safest way by simulation. It depends on the distribution of light, the exact path of the rays and the position of the neighboring optics. For this, both optics must be tested in opposite shades. The light-emitting rays 11c determine a minimum separation of the optics in the direction shown.
Por lo demas aqrn puede reconocerse que la optica antes representada no presenta ninguna interseccion y tanto por la forma exterior 12a como tambien por la forma interior, puede ser moldeadas sin problema ninguno., Con ello, los costes en herramienta se mantienen muy bajos. Igualmente se mantienen en unos lfmites las diferencias en el espesor de pared, de manera que las superficies exteriores de las lentes tambien pueden ser moldeadas con mucha precision, incluso en grandes placas de lentes.For the rest it can be recognized that the above-represented optics does not present any intersection and both the outer shape 12a and also the inner shape can be molded without any problem. With this, the tool costs remain very low. The differences in wall thickness are also kept within limits, so that the outer surfaces of the lenses can also be molded very accurately, even in large lens plates.
En general, todas las opticas presentan la misma orientacion en una placa de lentes. Sin embargo se producen aplicaciones logicas con diferente orientacion, cuando se necesita una distribucion de luz simetrica obtenible por colocar las opticas una enfrente de la otra. Igualmente, con una disposicion en forma circular de las opticas puede obtenerse una distribucion de luz simetrica a la rotacion, aproximadamente para la iluminacion de plazas.In general, all optics present the same orientation on a lens plate. However, there are logical applications with different orientation, when a symmetrical light distribution obtainable by placing the optics in front of each other is needed. Likewise, with a circular arrangement of the optics, a symmetrical light distribution can be obtained for the rotation, approximately for the illumination of squares.
En un diseno del invento, se pueden prever diferentes opticas en una placa de lentes para aproximadamente obtener una distribucion de luz por mezclado de geometnas de opticas existentes.In a design of the invention, different optics can be provided in a lens plate to approximately obtain a distribution of light by mixing existing optical geometries.
Modificando la posicion del LED en la optica cambia tambien la distribucion de luz. Con esto son posibles adaptaciones a anchos de calle diferentes o a relaciones del poste diferentes, sin tener que modificar la geometna optica de la placa de lentes y con ello sin tener que modificar la herramienta de fundicion.Modifying the position of the LED in the optics also changes the distribution of light. With this, adaptations to different street widths or to different post relationships are possible, without having to modify the optical geometry of the lens plate and thus without having to modify the casting tool.
Bajo una optica acorde con el invento se pueden colocar tambien varios LED's, especialmente Chip-LED's minimizados geometricamente, o LED's con varios semiconductores o placas de de circuito impreso con realizacion COB (Clip-on Board). Con ello correspondientemente la potencia luminosa sera mayor, sin embargo la distribucion de luz sera menos penetrante. En muchas aplicaciones se obtiene con esto, mejor econoirna con una calidad de iluminacion aceptable.According to the invention, several LEDs can be placed, especially geometrically minimized LED-LEDs, or LEDs with several semiconductors or printed circuit boards with COB (Clip-on Board) realization. With this, the light output will be greater, however, the light distribution will be less penetrating. In many applications it is obtained with this, better econoirna with an acceptable quality of illumination.
Claims (11)
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EP14162432.0A EP2924345B1 (en) | 2014-03-28 | 2014-03-28 | Lighting devices with asymmetrical light distribution |
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ES2691796T3 true ES2691796T3 (en) | 2018-11-28 |
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US10429035B2 (en) | 2017-01-25 | 2019-10-01 | Ledil Oy | Optical device for modifying light distribution |
US10274159B2 (en) | 2017-07-07 | 2019-04-30 | RAB Lighting Inc. | Lenses and methods for directing light toward a side of a luminaire |
DE102018103547A1 (en) * | 2018-02-16 | 2019-08-22 | Siteco Beleuchtungstechnik Gmbh | LAMP |
DE202019100380U1 (en) * | 2019-01-24 | 2020-04-27 | Zumtobel Lighting Gmbh | Arrangement for light emission with changeable light emission characteristics |
NL2025168B1 (en) * | 2020-03-19 | 2021-10-20 | Schreder Sa | Light emitting device with adaptable glare class |
AU2021238839A1 (en) * | 2020-03-19 | 2022-09-01 | Schreder S.A. | Light emitting device with adaptable glare class |
US11869358B2 (en) | 2021-10-29 | 2024-01-09 | Nortak Software Ltd. | System and method for warning of a presence of a mobile target |
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CN101699148A (en) | 2009-10-21 | 2010-04-28 | 苏州中泽光电科技有限公司 | Decentered lens for LED streetlight |
CN201764411U (en) | 2010-07-01 | 2011-03-16 | 雷笛克光学股份有限公司 | Polarizing streetlight optical lens |
CN102109132B (en) * | 2010-12-30 | 2013-11-13 | 北京朗波尔光电股份有限公司 | LED (Light Emitting Diode) light source assembly applied to low-order lighting and LED lamp applied to low-order lighting |
US9140430B2 (en) * | 2011-02-28 | 2015-09-22 | Cooper Technologies Company | Method and system for managing light from a light emitting diode |
CN102102851A (en) | 2011-03-24 | 2011-06-22 | 山东旭光太阳能光电有限公司 | Polarized lens suitable for power type LED (Light-Emitting Diode) streetlamp |
US20120307495A1 (en) * | 2011-06-06 | 2012-12-06 | Leotek Electronics Corporation | Optical lens and optical lens plate |
EP2834556B1 (en) * | 2012-04-06 | 2017-08-02 | Cree, Inc. | Multi-lens led-array optic system |
CN103471033B (en) | 2013-08-23 | 2015-06-10 | 中微光电子(潍坊)有限公司 | LED (light emitting diode) lens and lens module thereof |
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2014
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