ITTV20090228A1 - LONG-RANGE REACTOR INDICATOR WITH LED-TYPE LIGHT SOURCES - Google Patents

LONG-RANGE REACTOR INDICATOR WITH LED-TYPE LIGHT SOURCES Download PDF

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Publication number
ITTV20090228A1
ITTV20090228A1 IT000228A ITTV20090228A ITTV20090228A1 IT TV20090228 A1 ITTV20090228 A1 IT TV20090228A1 IT 000228 A IT000228 A IT 000228A IT TV20090228 A ITTV20090228 A IT TV20090228A IT TV20090228 A1 ITTV20090228 A1 IT TV20090228A1
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IT
Italy
Prior art keywords
led
device described
lenses
signaling device
refractive
Prior art date
Application number
IT000228A
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Italian (it)
Inventor
Giovine Vincenzo Di
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Giovine Vincenzo Di
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Giovine Vincenzo Di filed Critical Giovine Vincenzo Di
Priority to IT000228A priority Critical patent/ITTV20090228A1/en
Publication of ITTV20090228A1 publication Critical patent/ITTV20090228A1/en

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Classifications

    • 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
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/777—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having directions perpendicular to the light emitting axis
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/04—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for waterways
    • 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
    • F21Y2101/00—Point-like light sources
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • 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]

Description

DESCRIZIONE DI INVENZIONE INDUSTRIALE DESCRIPTION OF INDUSTRIAL INVENTION

Avente per titolo: SEGNALATORE A LUNGO RAGGIO IN RIFRAZIONE CON SORGENTI LUMINOSE DI TIPO LED Entitled: LONG RANGE REFRACTION SIGNALER WITH LED LIGHT SOURCES

Nella tecnica rivelata fino ad oggi i sistemi di segnalazione della luce emessa da sorgenti luminose di qualsiasi tipo sono fondati su proiettori aventi superfici riflettenti lisce o faccettate di dimensioni paragonabili alle dimensioni delle sorgenti medesime, tipicamente sorgenti a scarica. Nel caso di segnalatori con sorgenti luminose di tipo LED le dimensioni lineari del proiettore sono dello stesso ordine di grandezza della lunghezza dell’array di LEDs oppure del lato maggiore della superficie piana occupata dei LEDs, e la proiezione della luce avviene a mezzo parziale riflessione dell’emissione più laterale oppure a mezzo di emissione diretta della luce da parte dei LEDs verso il bersaglio senza alcun contributo di componenti ottici aggiuntivi. In taluni casi viene applicato un parziale collimatore esterno al sistema di LEDs noto come lente di Fresnel, che interviene in modo cumulativo sull’intero fascio uscente risultante ed introduce un debole aumento del grado di collimazione dello stesso. Lo stato dell’arte nota ad oggi evidenzia la mancanza di una tecnica di proiezione della luce emessa da sorgenti LEDs caratterizzata da elementi ottici refrattivi applicati singolarmente su ogni sorgente LED. In the technique disclosed to date, the systems for signaling the light emitted by light sources of any type are based on projectors having smooth or faceted reflecting surfaces of dimensions comparable to the dimensions of the sources themselves, typically discharge sources. In the case of signaling devices with LED light sources, the linear dimensions of the projector are of the same order of magnitude as the length of the LEDs array or of the longer side of the flat surface occupied by the LEDs, and the projection of the light occurs by means of partial reflection of the LEDs. more lateral emission or by means of direct emission of light by the LEDs towards the target without any contribution of additional optical components. In some cases, a partial external collimator is applied to the LED system known as a Fresnel lens, which acts cumulatively on the entire resulting outgoing beam and introduces a slight increase in the degree of collimation of the same. The state of the art to date highlights the lack of a projection technique of the light emitted by LED sources characterized by refractive optical elements applied individually on each LED source.

Nella domanda di brevetto ITUD20020059 e nel brevetto IT1320547 vengono ri delle tecniche di collimazione a mezzo lenti o menischi refrattivi che però non sono finalizzate alla specifica applicazione nel campo della segnalazione di ostacolo aereo né più in generale viene rivelata una tecnica atta a produrre un fascio di luce avente grado di divergenza complessivo risultante basso, ovvero si rivendica il principio di collimazione della luce del LED attraverso l’applicazione di lenti ma non l’applicazione di array di lenti corrispondenti ad altrettante sorgenti per collimare il fascio risultante. In patent application ITUD20020059 and in patent IT1320547, collimation techniques by means of refractive lenses or menisci are reported which, however, are not aimed at the specific application in the field of air obstacle signaling nor more generally a technique suitable for producing a beam of light having a low overall degree of divergence, i.e. the principle of collimation of the LED light is claimed through the application of lenses but not the application of array of lenses corresponding to as many sources to collimate the resulting beam.

In una realizzazione preferenziale del trovato oggetto della presente invenzione sorgenti di luce di tipo LED (1) sono posizionate lungo array lineari (2) che si trovano posizionate attorno ad un sostegno principale (3), i quali LEDs (1) sono accoppiati singolarmente ad elementi ottici refrattivi (4) quali lenti oppure menischi. Tali elementi refrattivi (4) sono a loro volta disposti in arrays aventi il medesimo numero di componenti dei sottostanti arrays di elementi emettitori di luce LED (2). Il sostegno principale (3) può essere cavo e dotato all’interno della sua cavità (5) di un sistema termicamente dissipativo (6) che trasporta il calore prodotto dalle sorgenti LEDs dalla superficie di contatto esterna all’aria interna alla cavità (5) generando un moto convettivo dell’aria medesima dal baso verso l’alto, in grado di dissipare il calore prodotto. I singoli elementi refrattivi (4) sono tipicamente costituiti da vetro ottico oppure materiale plastico otticamente isotropo quale ad esempio un polimero a base acrilica, oppure policarbonato, essendo tale materiale sagomato in modo da avere le due superfici (7) di contatto con l’aria curve. I raggi di curvatura (8) di tali superfici possono essere uguali oppure diversi, formando rispettivamente un menisco oppure una lente. I raggi di luce (9) uscenti da ciascun sistema LED-lente subiscono le due rifrazioni tipiche dell’attraversamento delle lenti ed il singolo fascio uscente da ciascun sistema LED-lente aumenta di collimazione, avendo una divergenza propria A che produce una divergenza complessiva B sufficientemente piccola, tipicamente di alcuni gradi. In a preferential embodiment of the invention object of the present invention light sources of the LED type (1) are positioned along linear arrays (2) which are positioned around a main support (3), which LEDs (1) are individually coupled to refractive optical elements (4) such as lenses or menisci. These refractive elements (4) are in turn arranged in arrays having the same number of components as the underlying arrays of LED light emitting elements (2). The main support (3) can be hollow and equipped inside its cavity (5) with a thermally dissipative system (6) that transports the heat produced by the LEDs sources from the external contact surface to the air inside the cavity (5) generating a convective motion of the air itself from the bottom upwards, capable of dissipating the heat produced. The individual refractive elements (4) are typically made up of optical glass or optically isotropic plastic material such as an acrylic-based polymer, or polycarbonate, this material being shaped so as to have the two surfaces (7) in contact with the air curves. The radii of curvature (8) of these surfaces can be the same or different, forming a meniscus or a lens respectively. The light rays (9) coming out of each LED-lens system undergo the two refractions typical of passing through the lenses and the single beam coming out of each LED-lens system increases in collimation, having its own divergence A which produces an overall divergence B sufficiently small, typically a few degrees.

In una seconda realizzazione del trovato oggetto della presente invenzione sorgenti di luce di tipo LED (1) sono posizionate lungo array lineari (2) che si trovano posizionate attorno ad un sostegno principale (3), i quali LEDs (1) sono accoppiati singolarmente ad elementi ottici refrattivi (4) quali lenti oppure menischi. Tali elementi refrattivi (4) sono a loro volta disposti in arrays aventi il medesimo numero di componenti dei sottostanti arrays di elementi emettitori di luce LED (2). Il sostegno principale (3) può essere cavo e dotato all’interno della sua cavità (5) di un sistema termicamente dissipativo (6) che trasporta il calore prodotto dalle sorgenti LEDs dalla superficie di contatto esterna all’aria interna alla cavità (5) generando un moto convettivo dell’aria medesima dal baso verso l’alto, in grado di dissipare il calore prodotto. I singoli elementi refrattivi (4) sono tipicamente costituiti da vetro ottico oppure materiale plastico otticamente isotropo quale ad esempio un polimero a base acrilica, oppure policarbonato, essendo tale materiale sagomato in modo da avere le varie superfici (10) di contatto con l’aria curve e non sferiche, essendo cioè superfici aventi sezioni variabili in funzione dell’angolo di sezione e descrivibili per mezzo di polinomi di grado superiore al secondo. In a second embodiment of the invention, object of the present invention, light sources of the LED type (1) are positioned along linear arrays (2) which are positioned around a main support (3), which LEDs (1) are individually coupled to refractive optical elements (4) such as lenses or menisci. These refractive elements (4) are in turn arranged in arrays having the same number of components as the underlying arrays of LED light emitting elements (2). The main support (3) can be hollow and equipped inside its cavity (5) with a thermally dissipative system (6) which transports the heat produced by the LEDs sources from the external contact surface to the air inside the cavity (5) generating a convective motion of the air itself from the bottom upwards, capable of dissipating the heat produced. The individual refractive elements (4) are typically made up of optical glass or optically isotropic plastic material such as an acrylic-based polymer, or polycarbonate, this material being shaped so as to have the various surfaces (10) in contact with the air. curved and non-spherical, ie being surfaces having variable sections as a function of the section angle and describable by means of polynomials of degree greater than one second.

In una terza realizzazione del trovato oggetto della presente invenzione sorgenti luce di tipo LED (1) sono posizionate lungo array lineari (2) che si trovano posizionate attorno ad un sostegno principale (3), i quali LEDs (1) sono accoppiati singolarmente ad elementi ottici refrattivi (4) quali lenti oppure menischi. Tali elementi refrattivi (4) sono a loro volta disposti in arrays aventi il medesimo numero di componenti dei sottostanti arrays di elementi emettitori di luce LED (2). Il sostegno principale (3) può essere cavo e dotato all’interno della sua cavità (5) di un sistema termicamente dissipativo (6) che trasporta il calore prodotto dalle sorgenti LEDs dalla superficie di contatto esterna all’aria interna alla cavità (5) generando un moto convettivo dell’aria medesima dal baso verso l’alto, in grado di dissipare il calore prodotto. Un unico elemento refrattivo (11) è tipicamente costituito da vetro ottico oppure materiale plastico otticamente isotropo quale ad esempio un polimero a base acrilica, oppure policarbonato, essendo tale materiale sagomato in modo da avere le varie superfici (11) di contatto con l’aria sferiche oppure di sezione variabile in funzione dell’angolo di sezione stessa e descrivibile per mezzo di polinomi di gradi superiore al secondo. Tale elemento refrattivo unico (11) copre interamente l’intero array di LED sottostante. In a third embodiment of the invention, object of the present invention, light sources of the LED type (1) are positioned along linear arrays (2) which are positioned around a main support (3), which LEDs (1) are individually coupled to elements refractive optics (4) such as lenses or menisci. These refractive elements (4) are in turn arranged in arrays having the same number of components as the underlying arrays of LED light emitting elements (2). The main support (3) can be hollow and equipped inside its cavity (5) with a thermally dissipative system (6) which transports the heat produced by the LEDs sources from the external contact surface to the air inside the cavity (5) generating a convective motion of the air itself from the bottom upwards, capable of dissipating the heat produced. A single refractive element (11) is typically made up of optical glass or optically isotropic plastic material such as an acrylic-based polymer, or polycarbonate, this material being shaped so as to have the various surfaces (11) in contact with the air spherical or with variable section according to the section angle and describable by means of polynomials with degrees greater than one second. This unique refractive element (11) entirely covers the entire underlying LED array.

In una quarta realizzazione del trovato oggetto della presente invenzione sorgenti di luce di tipo LED (1) sono posizionate lungo array lineari (2) che si trovano posizionate attorno ad un sostegno principale (3), i quali LEDs (1) sono accoppiati singolarmente ad elementi ottici refrattivi (4) quali lenti oppure menischi. Tali elementi refrattivi (4) sono a loro volta disposti in arrays aventi il medesimo numero di componenti dei sottostanti arrays di elementi emettitori di luce LED (2). Il sostegno principale (3) può essere cavo e dotato all’interno della sua cavità (5) di u sistema termicamente dissipativo (6) che trasporta il calore prodotto dalle sorgenti LEDs dalla superficie di contatto esterna aH’aria interna alla cavità (5) generando un moto convettivo deH’aria medesima dal baso verso l’alto, in grado di dissipare il calore prodotto. I singoli elementi refrattivi (4) sono costituiti da due lenti sovrapposte di vetro ottico oppure materiale plastico otticamente isotropo quale ad esempio un polimero a base acrilica, oppure policarbonato, essendo tale materiale sagomato in modo da avere le varie superfici (10) di contatto con l’aria curve e sferiche. In a fourth embodiment of the invention object of the present invention light sources of the LED type (1) are positioned along linear arrays (2) which are positioned around a main support (3), which LEDs (1) are individually coupled to refractive optical elements (4) such as lenses or menisci. These refractive elements (4) are in turn arranged in arrays having the same number of components as the underlying arrays of LED light emitting elements (2). The main support (3) can be hollow and equipped inside its cavity (5) with a thermally dissipative system (6) which transports the heat produced by the LED sources from the external contact surface to the air inside the cavity (5) generating a convective motion of the air itself from the bottom upwards, capable of dissipating the heat produced. The individual refractive elements (4) consist of two superimposed lenses of optical glass or optically isotropic plastic material such as for example an acrylic-based polymer, or polycarbonate, this material being shaped so as to have the various surfaces (10) in contact with curved and spherical air.

Claims (1)

RIVENDICAZIONI 1) Segnalatore di ostacolo aereo costituito da: a. sostegno principale cavo oppure pieno, dotato di mezzi termicamente dissipativi; b. arrays di sorgenti luminose di tipo LED installate lungo la superficie esterna del sostegno principale; c. arrays di elementi ottici redattivi accoppiati alle sorgenti di tipo LED; 2) Il segnalatore descritto nella rivendicazione 1 in cui i mezzi refrattivi sono lenti con superfici sferiche di raggio variabile oppure costante. 3) Il segnalatore descritto nella rivendicazione 1 in cui i mezzi refrattivi sono lenti con superfici asferiche aventi sezioni longitudinali descrivibili mediante polinomi di grado superiore al secondo. 4) Il segnalatore descritto nella rivendicazione 1 in cui i mezzi refrattivi sono singoli blocchi di materiale ottico sagomato a costituire un array di lenti ciascuna sovrapposta ad un LED. 5) Il segnalatore descritto nella rivendicazione 1 in cui i mezzi refrattivi sono coppie di lenti sovrapposte, ciascuna coppia sovrapposta ad un singolo LED. 6) Il segnalatore descritto nella rivendicazione 1 in cui i mezzi refrattivi sono di materiale polimerico isotropo oppure di vetro ottico.CLAIMS 1) Air obstacle warning device consisting of: to. hollow or solid main support, equipped with thermally dissipative means; b. arrays of LED-type light sources installed along the external surface of the main support; c. arrays of editorial optical elements coupled to LED type sources; 2) The signaling device described in claim 1 wherein the refractive means are slow with spherical surfaces of variable or constant radius. 3) The signaling device described in claim 1 in which the refractive means are lenses with aspherical surfaces having longitudinal sections that can be described by polynomials of degree higher than the second. 4) The signaling device described in claim 1 in which the refractive means are single blocks of optical material shaped to constitute an array of lenses each superimposed on an LED. 5) The signaling device described in claim 1 wherein the refractive means are pairs of superimposed lenses, each pair superimposed on a single LED. 6) The signaling device described in claim 1 wherein the refractive means are of isotropic polymeric material or of optical glass.
IT000228A 2009-12-09 2009-12-09 LONG-RANGE REACTOR INDICATOR WITH LED-TYPE LIGHT SOURCES ITTV20090228A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT000228A ITTV20090228A1 (en) 2009-12-09 2009-12-09 LONG-RANGE REACTOR INDICATOR WITH LED-TYPE LIGHT SOURCES

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Application Number Priority Date Filing Date Title
IT000228A ITTV20090228A1 (en) 2009-12-09 2009-12-09 LONG-RANGE REACTOR INDICATOR WITH LED-TYPE LIGHT SOURCES

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10102353A1 (en) * 2001-01-19 2002-08-01 Osram Opto Semiconductors Gmbh LED signal module has dust-tight thermally conducting leadthroughs providing thermally conducting connection from conducting tracks on first main board surface to second main surface
US20050110649A1 (en) * 2003-11-21 2005-05-26 Fredericks Thomas M. LED aircraft anticollision beacon
US20060028814A1 (en) * 2004-08-05 2006-02-09 Whelen Engineering Company, Inc. Integrated LED warning and vehicle lamp
US20060082999A1 (en) * 2004-10-18 2006-04-20 Klein W R Refractive clamp/optic for light emitting diode
DE102005061815A1 (en) * 2005-12-23 2007-06-28 Honeywell Airport Systems Gmbh Hazard beacon for identifying flight obstacles, has cylindrical supporting unit with number of assembling spaces for arrangement of diodes on lateral surface of unit, where spaces have mounting surface inclined to symmetrical axis of unit
US7300185B1 (en) * 2003-02-19 2007-11-27 Opto Technology, Inc. Quadrilateral symmetrical light source

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10102353A1 (en) * 2001-01-19 2002-08-01 Osram Opto Semiconductors Gmbh LED signal module has dust-tight thermally conducting leadthroughs providing thermally conducting connection from conducting tracks on first main board surface to second main surface
US7300185B1 (en) * 2003-02-19 2007-11-27 Opto Technology, Inc. Quadrilateral symmetrical light source
US20050110649A1 (en) * 2003-11-21 2005-05-26 Fredericks Thomas M. LED aircraft anticollision beacon
US20060028814A1 (en) * 2004-08-05 2006-02-09 Whelen Engineering Company, Inc. Integrated LED warning and vehicle lamp
US20060082999A1 (en) * 2004-10-18 2006-04-20 Klein W R Refractive clamp/optic for light emitting diode
DE102005061815A1 (en) * 2005-12-23 2007-06-28 Honeywell Airport Systems Gmbh Hazard beacon for identifying flight obstacles, has cylindrical supporting unit with number of assembling spaces for arrangement of diodes on lateral surface of unit, where spaces have mounting surface inclined to symmetrical axis of unit

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