Light-Emitter Device and Method for Promoting Grass Growth

• US 20190000020A1
• Filed: 12/21/2016
• Published: 01/03/2019
• Est. Priority Date: 12/21/2015
• Status: Active Application

• Current Assignee: Rhenac GreenTec AG
• Original Assignee: Rhenac GreenTec AG
• Inventors: Theisen, Horst
• Application Number:
  US16/064,803
• Publication Number:
  US 20190000020A1
• Time in Patent Office: Days
• CPC Class Codes: A01G 7/045 with electric lighting
• CPC Class Codes: E01C 13/083 Construction of grass-grown sports grounds; Drainage, irrigation or heating arrangements therefor
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: Y02P 60/14 Measures for saving energy, e.g. in green houses

Abstract

The invention relates to a light-emitting device for promoting grass growth, in particular of sports turf, wherein the device comprises at least one LED circuit board and a control/regulating unit having at least three channels. The light-emitting device can be mounted on light support units and be moved over the lawn.

Claims

1-10. -10. (canceled)

11. A light-emitting device for promoting grass growth, in sports turf comprising,

at least one LED board containing a plurality of LEDs,

a control unit, and

a power source connected to the control unit and the at least one LED board,

wherein the control unit has at least three channels, each channel capable of controlling a selected set of LEDs and suitable for regulating individual wave spectra from 0 to 100%.

12. The light-emitting device according to claim 11, wherein that at least one LED board has integrated circuits and special recordings for receiving individual LEDs.

13. The light-emitting device according to claim 11 wherein the control unit is a control board having a plurality of channels and at least one channel controls a single LED on the LED board.

14. The light-emitting device according to claim 11 wherein the control unit is a control board having a plurality of channels and each channel controls more than one LED on the LED board.

15. The light-emitting device according to claim 11, the at least one LED board comprising at least one of an LED, a UV LED or an OLED.

16. The light-emitting device according to claim 11 wherein the LED board comprises at least one UV LED having a peak at 395 nm, at least one LED having a peak at 440 nm and at least one LED having a peak at 660 nm.

17. The light-emitting device according to claim 11 also comprising an IR heat radiator connected to the control unit.

18. The light-emitting device according to claim 11 also comprising at least one of a measuring unit, a spectrometer, an IR-sensing probe temperature transmitter, a power dimmer and a DMX converter connected to the control unit.

19. A method for promoting turf growth of sports turf comprising:

providing a light-emitting device comprised of at least one LED board containing a plurality of LEDs, a control unit, and a power source connected to the control unit and the at least one LED board, wherein the control unit has at least three channels, each channel capable of controlling a selected set of LEDs and suitable for regulating individual wave spectra from 0 to 100%, and

selecting light spectra and intensities needed by the sports turf, and

applying light by means of a light emitter device, the selected light spectra and intensities to the sports turf.

20. A method according to claim 19 wherein the light-emitting device additionally comprises an IR heat radiator, an IR-sensing probe temperature transmitter, a DMX converter and a power dimmer, wherein the IR temperature sensor by means of an IR beam, the scans sports turf and transmits detected temperatures to the control unit, and then performs a target-actual adjustment with this temperature value, so as to determine a control value, which is converted into an output signal, the output again is converted by the DMX converter to DMX, and then the converted value is transmitted from the DMX converter to the power dimmer, which then controls the output of the IR heat radiator.

21. The method according to claim 20, wherein the control unit performs the target-actual adjustment with values of 0-10 V, the output signal is between 0 and 10 V, the DMX converter converts the output signal of 0-10 V into values of 1-255, and the DMX converter transmits a value of 0-255 to the power dimmer.

22. The method according to claim 19 wherein the light-emitting device additionally comprises a spectrometer that measures light spectra and then only selected light spectrum is emitted.

23. The method according to claim 22 wherein the selected light spectra is determined by a condition of the sports turf which indicates that the selected light spectra will aid growth.