Title:
LED LIGHT GUIDE PLATE ILLUMINATION UNIT AND CULTIVATION DEVICE INCLUDING THE ILLUMINATION UNIT
Document Type and Number:
Japanese Patent JP2014180267
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an LED light guide plate illumination unit which does not use a blue LED, includes a wavelength component indispensable for growing plants, and capable of irradiating in white-based color on the visual sense of human, and cultivation device including the unit.SOLUTION: An LED light guide plate illumination unit comprises: an edge light which is configured that light of a plurality of white LEDs and red LEDs is made incident to at least one side of a light guide plate from a lateral direction, and one plate surface of the light guide plate emits light in white-based color; and an LED array in which a plurality of white LEDs is arrayed along one side of the light guide plate. The LED array is provided for a common substrate with the edge light while being positioned on a side opposite to a light entry side of the light guide plate. Further, the unit comprises a power supply switch capable of adjusting illuminance for each of the edge light and the LED array.
Inventors:
WADA KOICHI
Application Number:
JP2013057860A
Publication Date:
September 29, 2014
Filing Date:
March 21, 2013
Export Citation:
Assignee:
WADA DENKI KK
International Classes:
A01G7/00; F21S2/00; F21S6/00; F21V23/00; F21V23/04; F21Y101/02
Attorney, Agent or Firm:
Toshiaki Hamada