Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO2020109882 - DISPOSITIF D'ÉCLAIRAGE À DEL POUR UNE SURFACE CULTIVÉE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS

1. An LED lighting device (1) for the irradiation of a cultivated surface comprising:

- a support (26) made of thermally conductive material, having a lower face (30), intended to be turned toward the cultivated surface, and an opposite upper face (28), provided with a plurality of holes (32) passing from the upper face (28) to the lower face (30), wherein inlet openings (32a) of said holes (32) on the upper face (28) collectively occupy a hole region (33) of said upper face (28) ;

a plurality of optical bodies (72) suitable to concentrate or distribute a light emission cone, each optical body (72) being inserted in a respective hole (32) so as to concentrate or distribute the emission cone exiting the lower face (30);

- a thin and flexible membrane (52), in contact with the upper face (28) of the support (26), so as to cover the hole region (33);

- an LED board (14) comprising a plurality of LEDs (22), superimposed on and in contact with the membrane (52), configured so that each LED is turned toward the membrane and aligns with the respective optical body (72) .

2. A lighting device according to claim 1, wherein the membrane (52) is made of an elastomer, preferably silicone rubber.

3. A lighting device according to claim 1 or 2, wherein the membrane (52) has a thickness of less than 1.5 millimeters, preferably less than 1 millimeter, even more preferably equal to or less than 0.6 millimeters.

4. A lighting device according to any one of the preceding claims, wherein each optical body (72) is a solid body made of an elastomeric material, e.g. silicone rubber .

5. A lighting device according to any one of the preceding claims, wherein each optical body (72) has an outer surface (74) in the form of a dome for the escape of the irradiation cone.

6. A lighting device according to any one of the preceding claims, wherein the membrane (52) and the optical body (72) are made as a single piece wherein the optical bodies (72) protrude from a lower face (56) of the membrane (52), and an upper face (58) of the membrane (52) is turned toward the LEDs (22) .

7. A device according to any one of the preceding claims, comprising a plurality of hole seals (78), each hole seal (78) being associated with a respective optical body (72), said hole seal (78) being suitable to form a seal between the lower face (30) and the upper face (28) of the support (26) .

8. A lighting device according to claim 7, wherein each hole (32) at the inlet opening (32a) has a hole seal seat (38) wherein a respective hole seal (78) is housed.

9. A lighting device according to claim 7 or 8 when dependent on claim 6, wherein the hole seals (78) are made in one piece with the membrane (52) and the optical bodies ( 72 ) .

10. A lighting device according to any one of the preceding claims, wherein the membrane (52) is mechanically detached from the support (26) and/or from the LED board (14) .

11. A lighting device according to any one of the preceding claims, wherein the membrane (52) consists of a plurality of structurally separate membrane portions (62), which, side-by-side, form said membrane (52) .

12. A lighting device according to claim 11, wherein each membrane portion (62) is associated with a predefined number of optical bodies (72) and said optical bodies (72) are made in one piece with said membrane portion (62) .

13. A lighting device according to any one of the preceding claims, wherein, on the upper face (58), the membrane (52) has a plurality of pockets (76) lowered relative to said upper face (58), each pocket (76) being aligned with a respective optical body (72) and a respective LED (22) .

14. A lighting device according to claim 13, wherein each pocket has a depth equal to the thickness of the membrane (52) .

15. A lighting device according to any one of the preceding claims, wherein each LED (22) is in contact with the upper face (58) of the membrane (52) .

16. A lighting device according to any one of the preceding claims, wherein the support (26) has on the upper face (28) a support seal seat (46) surrounding the hole region (33), lowered relative to the upper face

(28), intended to accommodate a support seal (48) .

17. A lighting device according to any one of the preceding claims, comprising a heat sink (4) mounted superimposed on the LED board (14) .

18. A lighting device according to claim 17, comprising a control box (2) mounted superimposed on the heat sink

(4), containing electrical components for powering and controlling the LEDs (22) .

19. A lighting device according to any one of the preceding claims, comprising a bracket (12) for transporting and positioning the device over the cultivated surface.

20. A lighting device according to any one of the preceding claims, wherein the support (26) is made as a single piece, preferably of aluminum.