SHADING DEVICE

• US 20110088314A1
• Filed: 05/07/2008
• Published: 04/21/2011
• Est. Priority Date: 05/14/2007
• Status: Active Grant

• Current Assignee: Philips Lighting Holding BV (Signify N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Jacobs, Joseph Hendrik Anna Maria
• Granted Patent: US 9,642,316 B2
• Time in Patent Office: Days
• US Class Current: 47/32.3
• CPC Class Codes: A01G 7/045 with electric lighting
• CPC Class Codes: A01G 9/20 Forcing-frames; Lights , i.e. glass panels covering the forcing-frames
• CPC Class Codes: A01G 9/22 Shades or blinds for greenhouses, or the like
• CPC Class Codes: A01G 9/249 Lighting means with special arrangements for promoting growth A01G7/045
• CPC Class Codes: D03D 1/0047 Camouflage fabrics
• CPC Class Codes: D03D 1/007 UV radiation protecting
• CPC Class Codes: D03D 1/0088 Fabrics having an electronic function
• CPC Class Codes: D03D 15/00 Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
• CPC Class Codes: D03D 15/258 Noble metal
• CPC Class Codes: D03D 15/267 Glass
• CPC Class Codes: D03D 15/46 Flat yarns, e.g. tapes or films
• CPC Class Codes: D10B 2101/06 Glass
• CPC Class Codes: D10B 2101/08 Ceramic
• CPC Class Codes: D10B 2101/20 Metallic fibres
• CPC Class Codes: D10B 2321/041 polyvinyl chloride or polyvinylidene chloride
• CPC Class Codes: D10B 2321/10 polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
• CPC Class Codes: D10B 2401/16 antistatic; conductive
• CPC Class Codes: D10B 2401/22 protective against sunlight or UV radiation
• CPC Class Codes: D10B 2505/18 Outdoor fabrics, e.g. tents, tarpaulins D10B2507/00 takes precedence
• CPC Class Codes: F41H 3/02 Flexible, e.g. fabric covers, e.g. screens, nets characterised by their material or structuremaking thereof, see the relevant classes, e.g. D04
• CPC Class Codes: H05K 1/0274 : Optical details, e.g. printed circuits comprising integral optical means H05K1/0269 takes precedence; coupling light guides with opto-electronic components G02B6/42
• CPC Class Codes: H05K 1/038 : Textiles used as reinforcing materials for organic insulating substrates H05K1/0366
• CPC Class Codes: H05K 1/09 : Use of materials for the conductive, e.g. metallic pattern
• CPC Class Codes: H05K 1/181 : associated with surface mounted components
• CPC Class Codes: H05K 2201/10106 : Light emitting diode [LED]
• CPC Class Codes: H05K 2201/10113 : Lamp
• CPC Class Codes: Y02A 40/25 : Greenhouse technology, e.g. cooling systems therefor

Abstract

The invention relates to a shading device (10) for a greenhouse (15), with a shading element (20) and at least one lighting element (50,50′), wherein the shading element (20) comprises an outer side (21) and an inner side (22), the shading element (20) is formed from interwoven electrically conductive first thread elements (30,30′) and electrically insulating second thread elements (40), the first thread element (30,30′) comprises a reflective mean (33), reflecting an ambient light (60), the lighting element (50,50′) is arranged at the inner side (22) of the shading element (20) and connected with the first thread element (30,30′), and the lighting element (50,50′) is driven by an electrical current, conducted by the first thread element (30,30′), resulting in the emission of an artificial light (51), illuminating a plant (80) growing in the greenhouse (15).

Claims

1. A shading device for a greenhouse, comprising a shading element and at least one lighting element, wherein

the shading element comprises an outer side and an inner side and is formed from interwoven electrically conductive first thread elements and electrically insulating second thread elements,

the first thread element comprises a reflective layer, reflecting an ambient light,

the lighting element is arranged at the inner side of the shading element and connected with the first thread element, and

the lighting element is driven by an electrical current, conducted by the first thread element, resulting in the emission of an artificial light, illuminating a plant growing in the greenhouse.

2. A shading device according to claim 1, wherein the reflective layer, and the first thread element are one-piece.

3. A shading device according to claim 1, wherein, the first and/or the second thread element comprises an outer surface and an inner surface, being part of the outer side and the inner side of the shading element respectively.

4. A shading device according to claim 3, wherein the reflective mean is positioned on the inner surface, reflecting the ambient light, falling onto the inner side of the shading element.

5. A shading device according to claim 3, wherein the reflective mean is positioned on the outer surface, reflecting the ambient light, falling onto the outer side of the shading element.

6. A shading device according to claim 1, wherein, the lighting element is at least one of the following:

an LED, an OLED, a dielectric barrier discharge (DBD) lamp, a gas discharge lamp, a high intensity discharge lamp, an incandescent lamp, a fluorescent lamp or a high pressure sodium lamp.

7. A shading device according to claim 1, wherein, the first thread element comprises a circuit mean, conducting the electrical current.

8. A shading device according to claim 1, wherein the first thread element and/or the circuit mean comprise at least one metal or metal-oxide.

9. A shading device according to claim 1, wherein the second thread element comprises an electrical insulating material.

10. A shading device according to claim 1, wherein, the first and/or the second thread element comprise a multilayer structure.

12. Method to operate a shading device according to claim 1 comprising the steps

adjusting the amount of an artificial light emitted by a lighting element (50, 50′

) in response to the amount of an ambient light in order to achieve a constant illumination of the plants during day time and

adjusting the amount of artificial light emitted by the lighting element (50, 50′

) at night to a higher amount compared to the amount of the artificial light (50, 50′

) during day time.

13. Method according to claim 12, wherein the amount of artificial light at night is adjusted to the total amount of ambient light and artificial light during day time.

11. (canceled)