Title:
Light irradiation device
Document Type and Number:
Japanese Patent JP6069382
Kind Code:
B2
Abstract:
The present invention provides a light irradiation device which is lightweight and thin. The light irradiation device comprises a base plate; multiple LED light sources, which are mounted on a surface of the base plate at a specified interval; a heat dissipating component that includes a base that extends from a back surface of the base plate in a specific direction and spreads heat generated by the LED light sources and a heat sink mounted on a surface of the base and comprising multiple fins that extend in a specific direction, the base and the heat sink being provided with through holes; an LED driving circuit driving the multiple LED light sources mounted on the base; a shell that houses the heat dissipating component and the LED driving circuit and defines an air flowing space, the air flowing space comprising a wind tunnel enclosing the multiple fins, an air duct formed by connection of the through holes in the base and the through holes in the heat sink, and a spce enclosing the LED driving circuit; and a cooling fan that introduces external air into the wind tunnel, the air duct and the space.
Inventors:
Norio Kobayashi
Application Number:
JP2015024448A
Publication Date:
February 01, 2017
Filing Date:
February 10, 2015
Export Citation:
Assignee:
hoya candeo optronics Co., Ltd.
International Classes:
B41F23/04; F21S2/00; H05B44/00; H05K7/20
Domestic Patent References:
| JP2009081091A | ||||
| JP2010110938A | ||||
| JP2001319998A | ||||
| JP60041055U | ||||
| JP2011228602A |
Attorney, Agent or Firm:
Yoshiyuki Araki