IT202100001430U1

IT202100001430U1 - LIGHTING DEVICE WITH INTEGRATED PHOTOLUMINESCENT COMPONENT

Info

Publication number: IT202100001430U1
Application number: IT202021000001430U
Authority: IT
Inventors: Anna Laura Pisello; Franco Cotana; Chiara Chiatti; Elisa Belloni; Benedetta Pioppi; Claudia Fabiani
Original assignee: Centro Naz Ricerca Physical Internet Pipenet Crpp
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2022-09-23

Description

DESCRIZIONE TECNICA DEL TROVATO TECHNICAL DESCRIPTION OF THE INVENTION

L?invenzione proposta si inserisce nel campo di apparecchi illuminanti destinati ad essere implementati in sistemi illuminotecnici per spazi sia interni che esterni. Nello specifico, il dispositivo di illuminazione proposto ? caratterizzato dalla presenza di una componente fotoluminescente anteposta all?elemento illuminante tradizionale, che ne prolunga l?effetto senza ulteriori consumi di energia elettrica. Nel corso degli anni, infatti, ? emersa l?esigenza di sviluppare soluzioni tecnologiche che consentano di ridurre i consumi, e di conseguenza i costi, legati al funzionamento di diverse tipologie di impianti, comprese quelle per l' illuminazione. In questo senso, lo sfruttamento di risorse energetiche sostenibili e rinnovabili ? considerato come la soluzione pi? valida nell?ottica della sostenibilit?. The proposed invention fits into the field of lighting fixtures intended to be implemented in lighting systems for both indoor and outdoor spaces. Specifically, the proposed lighting device? characterized by the presence of a photoluminescent component placed in front of the traditional lighting element, which prolongs its effect without further consumption of electricity. Over the years, in fact, ? the need emerged to develop technological solutions that allow for a reduction in consumption, and consequently costs, linked to the operation of various types of systems, including those for lighting. In this sense, the exploitation of sustainable and renewable energy resources? considered as the solution pi? valid from the point of view of sustainability.

Si specifica che, nel contesto della presente invenzione, con il termine ?fotoluminescenza? si fa riferimento alla capacit? di un materiale di assorbire energia da una radiazione elettromagnetica (100 nm - 2000 nm) che lo colpisce, per poi ri-emettere quest?ultima sotto forma di radiazione luminosa visibile (380 nm - 780 nm). Con ?componente fotoluminescente?, invece, si intende un elemento il cui materiale ? costituito da atomi, molecole, ioni, semiconduttori, polimeri e simili che hanno propriet? fotoluminescenti. In particolare, il dispositivo illuminante proposto prevede l' implementazione di fosfori luminescenti, di composizione variabile a seconda della colorazione di emissione desiderata, nell?elemento pi? esterno della sorgente luminosa. In questo modo, l?effetto fotoluminescente viene sollecitato sia dalla radiazione solare e/o artificiale proveniente dall?ambiente in cui il dispositivo ? collocato, sia dalla radiazione emessa dalla lampada retrostante, artificialmente alimentata da energia elettrica. L?alimentazione del dispositivo pu? avvenire per collegamento diretto alla linea elettrica generale o indipendentemente da quest?ultima, tramite batteria o pannello solare dedicato. In ogni caso, nel momento in cui l' alimentazione si interrompe, la fotoluminescenza diventa visibile al buio e mantiene il dispositivo luminoso per un apprezzabile intervallo di tempo. Il fenomeno si ripropone con le stesse caratteristiche a valle di una nuova esposizione dell?elemento fotoluminescente alla luce. It is specified that, in the context of the present invention, with the term ?photoluminescence? does it refer to the capacity? of a material to absorb energy from electromagnetic radiation (100 nm - 2000 nm) which strikes it, and then re-emit the latter in the form of visible light radiation (380 nm - 780 nm). With ?photoluminescent component?, on the other hand, we mean an element whose material? consists of atoms, molecules, ions, semiconductors, polymers and the like that have properties? photoluminescent. In particular, the proposed illuminating device provides for the implementation of luminescent phosphors, of variable composition according to the desired emission colour, in the lowest element. exterior of the light source. In this way, the photoluminescent effect is stimulated both by solar and/or artificial radiation coming from the environment in which the device is located. placed, and by the radiation emitted by the lamp behind it, artificially powered by electricity. The power supply of the device can take place by direct connection to the main power line or independently of the latter, via battery or dedicated solar panel. In any case, when the power is cut off, the photoluminescence becomes visible in the dark and keeps the device luminous for an appreciable amount of time. The phenomenon reappears with the same characteristics after a new exposure of the photoluminescent element to light.

Il sistema pu? essere ulteriormente ottimizzato se la sorgente luminosa prevede alternativamente o congiuntamente le opzioni di: The system can be further optimized if the light source alternately or jointly provides the options of:

- Funzionamento temporizzabile, per il controllo dell ? accensione e dello spegnimento in funzione dei tempi di carica-scarica della fotoluminescenza; - Timing operation, for the control of the ? switching on and off according to the charge-discharge times of the photoluminescence;

- Intensit? dimmerabile, in funzione della risposta desiderata dei fosfori di cui la componente fotoluminescente ? composta; - Intensity? dimmable, according to the desired response of the phosphors of which the photoluminescent component? composed;

- Selezione dello spettro di emissione (es. RGB, UV, IR, bianco) e della temperatura di colore, in funzione della tipologia dei fosfori di cui la componente fotoluminescente ? composta; - Selection of the emission spectrum (e.g. RGB, UV, IR, white) and of the color temperature, according to the type of phosphors of which the photoluminescent component? composed;

- Rilevamento del livello di illuminamento dell?ambiente circostante tramite sensori; - Detection of the lighting level of the surrounding environment using sensors;

- Controllo remoto, tramite chip wireless. - Remote control, via wireless chip.

Con riferimento alle Figure 1 e 2, gli elementi costituenti il dispositivo illuminante con componente fotoluminescente integrata nella sua definizione pi? generale sono i seguenti: With reference to Figures 1 and 2, the constituent elements of the lighting device with a photoluminescent component integrated in its more complete definition? general are as follows:

- Copertura metallica o di plastica rigida (1) a chiusura della parte posteriore del telaio di sostegno (2); - Metal or rigid plastic cover (1) to close the rear part of the support frame (2);

- Telaio di materiale metallico o plastico (2) che costituisce la parte strutturale dell?intero dispositivo; - Metal or plastic material frame (2) which constitutes the structural part of the entire device;

- Foglio di materiale plastico bianco opaco (3) collocato tra la copertura metallica (1) e la sorgente luminosa (4); - Sheet of opaque white plastic material (3) placed between the metal cover (1) and the light source (4);

- Sorgente luminosa (4) inserita lungo la totalit? o parte del perimetro interno del telaio; - Light source (4) inserted along the entirety? or part of the internal perimeter of the frame;

- Elemento diffusore di materiale plastico rigido e trasparente (5), permeabile alla luce della sorgente luminosa (4); - Diffuser element of rigid and transparent plastic material (5), permeable to the light of the light source (4);

- Foglio di materiale plastico o vetroso additivato della componente fotoluminescente (6), collocato a chiusura della parte anteriore del telaio (2); - Sheet of plastic or glass material with the addition of the photoluminescent component (6), placed to close the front part of the frame (2);

- Cavi di connessione elettrica (7) per il funzionamento della sorgente luminosa (4); - Electrical connection cables (7) for the operation of the light source (4);

- Elementi di fissaggio del dispositivo (8) da inserire negli appositi fori realizzati sulla copertura posteriore (1) e il telaio di sostegno (2). - Fixing elements of the device (8) to be inserted in the special holes made on the rear cover (1) and the support frame (2).

L?innovazione del modello sta nel duplice ruolo della sorgente luminosa (4) che, quando elettricamente alimentata, oltre a fornire il primario servizio di illuminazione artificiale, emette radiazioni luminose che attraversano l?elemento diffusore (5) e arrivano all'ultimo strato (6), dove attivano la fotoluminescenza caricando i fosfori inglobati nel materiale di cui ? composto. Si specifica che materiali plastici o vetrosi fotoluminescenti, come quelli indicati per lo strato pi? esterno del dispositivo (6), sono gi? commercialmente disponibili con un'ampia gamma di colorazioni e concentrazioni di fosfori. The innovation of the model lies in the dual role of the light source (4) which, when electrically powered, in addition to providing the primary artificial lighting service, emits light radiations which pass through the diffuser element (5) and reach the last layer ( 6), where they activate photoluminescence by loading the phosphors incorporated in the material of which ? composed. It is specified that photoluminescent plastic or glassy materials, such as those indicated for the uppermost layer, are external device (6), are already? commercially available with a wide range of colors and phosphor concentrations.

Tutte le parti sopra elencate (1-8) possono essere progettate e/o assemblate coerentemente alle indicazioni stabilite dai rispettivi produttori. La loro combinazione forma un dispositivo illuminante nuovo, autonomo nel funzionamento, utilizzabile: All the parts listed above (1-8) can be designed and/or assembled consistently with the indications established by the respective manufacturers. Their combination forms a new lighting device, autonomous in operation, usable:

- In ambienti interni, come valida soluzione per la segnalazione delle vie di esodo in casi di emergenza o interruzione della corrente elettrica; - Indoors, as a valid solution for signaling escape routes in the event of an emergency or a power cut;

- In ambienti esterni, in alternanza con esistenti sistemi di illuminazione, per il delineamento di percorsi pedonali, ciclabili e/o carrabili. - In outdoor environments, alternating with existing lighting systems, for outlining pedestrian, cycle and/or vehicular paths.

L?installazione del dispositivo illuminante pu? avvenire a muro o a pavimento, a incasso o non. In caso di incasso, va considerata la necessit? di un ingombro minimo interno alla parete o alla pavimentazione per l?installazione dei componenti necessari al funzionamento del dispositivo stesso, mentre l?aggiunta di un accessorio apposito pu? rendersi necessaria nel caso di fissaggio a parete o a soffitto o di posizionamento su una superficie orizzontale. In ogni caso, la forma finale del dispositivo illuminante pu? essere scelta e personalizzata in funzione della collocazione, della tipologia e del ruolo che il sistema dovr? svolgere. L?invenzione, infatti, pu? essere adattata e dotata di adeguato supporto per installazioni su: The installation of the lighting device can? take place on the wall or on the floor, recessed or not. In case of collection, should the need be considered? of a minimum space inside the wall or floor for the installation of the components necessary for the operation of the device itself, while the addition of a special accessory can become necessary in the case of wall or ceiling mounting or positioning on a horizontal surface. In any case, the final shape of the lighting device can be chosen and customized according to the location, type and role that the system will have to? carry out. In fact, the invention can be adapted and equipped with adequate support for installations on:

- Sistemi di mobilit? e micro-mobilit?, elettrica e non (monopattini, bicicli, motocicli, autovetture); - Mobility systems? and micro-mobility, electric or not (scooters, bicycles, motorcycles, cars);

- Sistemi indossabili, quali caschi protettivi, zaini, borse, vestiario di sicurezza ad alta visibilit? e simili. - Wearable systems, such as protective helmets, backpacks, bags, high visibility safety clothing? and similar.

In entrambi i casi, il dispositivo illuminante pu? essere dotato di sensori per il rilevamento della presenza di persone o ostacoli nell?ambiente circostante. In both cases, the illuminating device can? be equipped with sensors for detecting the presence of people or obstacles in the surrounding environment.

Claims

1) Lighting device with integrated photoluminescent component characterized in that it comprises:

- A metal or rigid plastic cover (1) to close the rear part of the support frame (2);

- A frame of metallic or plastic material (2) which constitutes the structural part of the whole device;

- A sheet of opaque white plastic material (3) placed between the metal cover (1) and the light source (4);

- A light source (4) inserted along the entirety? or a part of the internal perimeter of the frame;

- A diffuser element of rigid and transparent plastic material (5), permeable to the light of the light source (4);

- A sheet of plastic or glass material with the additive of the photoluminescent component (6), placed to close the front part of the frame (2);

- Electrical connection cables (7) for the operation of the light source (4);

- Fixing elements of the device (8) to be inserted in the special holes made on the rear cover (1) and the support frame (2).

2) Lighting device with integrated photoluminescent component, according to claim 1), characterized in that said sheet of opaque white material (2) is positioned so as to reflect the radiation emitted by the light source (4), so? to induce it to propagate only in the direction of said diffuser element (5).

3) Lighting device with integrated photoluminescent component, according to one or more? of the preceding claims, characterized in that said diffuser element (5) is made and positioned so that the radiation emitted by the light source (4) passes through it uniformly and reaches the photoluminescent component (6).

4) Lighting device with integrated photoluminescent component, according to one or more? of the preceding claims, characterized in that the absorption of the radiation emitted by the light source (4) causes the photoluminescent material of the component (6) to charge.

5) Lighting device with integrated photoluminescent component, according to claim 1), characterized in that said photoluminescent component ? consists of paint or similar solution, applicable directly on the layer pi? exterior of the appliance.

6) Lighting device with integrated photoluminescent component, according to claim 1), characterized in that said photoluminescent component ? made of fabric or similar, usable as a layer pi? exterior of the appliance.

7) Lighting device with integrated photoluminescent component, according to claim 1), characterized in that said diffuser element (5) and said photoluminescent component (6) constitute a single element.

8) Lighting device with integrated photoluminescent component, according to one or more? of the preceding claims, characterized in that said photoluminescent component incorporates rare earth elements doped with different elements, according to the desired re-emission characteristics. ,

9) Lighting device with integrated photoluminescent component, according to one or more? of the preceding claims, characterized in that said light source (4) jointly or alternatively comprises:

- a timing system for the control of the ? switching on or off, according to the charge/discharge times of the photoluminescence;

- a dimming system intensity? bright;

- a system for selecting the emission spectrum and/or the color temperature of the light diffused by the source.

10) Lighting device with integrated photoluminescent component, according to one or more? of the preceding claims, characterized in that it comprises suitable means of support and/or fixing to the wall, to the floor or for resting on any horizontal surface.

11) Lighting device with integrated photoluminescent component, according to one or more? of the preceding claims, characterized in that it comprises an adequate support and/or platform for installation on mobility systems? and micro-mobility? (scooters, bicycles, motorcycles, cars), and/or on wearable systems, such as protective helmets, backpacks, bags, high visibility safety clothing? and similar.

12) Lighting system characterized in that it comprises at least one lighting device with an integrated photoluminescent component, according to one or more of the previous claims, and a photovoltaic panel to which the first? operatively associated for the energy supply.

13) Lighting system characterized in that it comprises at least one lighting device with an integrated photoluminescent component, according to one or more of the previous claims, and a battery to which the system ? operatively associated for independent operation from the general power line.

14) Lighting system, according to one or more? of claims 12) -13), characterized in that it comprises a system for detecting the presence of people or obstacles by means of sensors.

15) Lighting system, according to one or more? of claims 12) -14) characterized in that it comprises a system for detecting the level of illumination of the surrounding environment by means of sensors.

16) Lighting system, according to one or more? of claims 12) -15), characterized in that it comprises a wireless chip for remote control.