LED lighting for livestock development

Patent metadata

Field	Value
Publication number	US-9700019-B2
Application number	US-91631310-A
Country	US
Kind code	B2
Filing date	Oct 29, 2010
Priority date	Oct 29, 2009
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

Apparatus and associated methods involve a hangable LED light assembly constructed to provide a selected color output illumination as a function of excitation intensity. In an illustrative example, the color output may be selected to promote biological development throughout livestock development stages (e.g., incubation, growth, and reproduction). The light intensity may controllable, for example, in response to a light dimmer arranged to modulate AC excitation applied to the LED downlight. As the light intensity is decreased in response to a simple dimmer control, the spectral output of the LED downlight may shift its output wavelengths. Accordingly, some exemplary installations may provide controlled combinations of intensity and color to substantially optimize lighting conditions for livestock.

First claim

What is claimed is:

1. A method of artificially illuminating swine during a life cycle to promote growth of the swine, the method comprising:
providing an electric lamp configured to illuminate a livestock area in which swine develop;
illuminating the livestock area with illuminants within the lamp, wherein the illuminants generate a selected wavelength;
illuminating the livestock area with other illuminants within the lamp; and
illuminating swine with the selected wavelength during selected portions of the swine lifecycle; and
simulating a sunrise by increasing light intensity on the swine with a program on a selected program schedule to promote growth of the swine.

2. The method of claim 1 , wherein the selected wavelength comprises a red color.

3. The method of claim 1 , wherein the selected wavelength comprises an infrared color.

4. The method of claim 1 , wherein the selected wavelength comprises a blue color.

5. The method of claim 1 , further comprising the step of reducing a peak intensity level of illumination once the swine in the livestock area have reached a predetermined maturity level.

6. The method of claim 1 , further comprising selectively discontinuing illuminating the swine with the selected wavelength and illuminating the livestock area with the other illuminants that output a white color.

Assignees

• Grajcar Zdenko
• Once Innovations Inc

Inventors

• Grajcar Zdenko

Classifications

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• H05B45/20

  Controlling the colour of the light · CPC title

• H05B45/40

  Details of LED load circuits · CPC title

• F21V29/773

  the planes containing the fins or blades having the direction of the light emitting axis · CPC title

• H05B45/48

  having LEDs organised in strings and incorporating parallel shunting devices · CPC title