The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2021
Filed:
Mar. 29, 2017
Sakai Display Products Corporation, Sakai, JP;
Daisuke Teragawa, Sakai, JP;
SAKAI DISPLAY PRODUCTS CORPORATION, Sakai, JP;
Abstract
An illuminating device () according to the present invention is provided with: a substrate () having a surface, on which a plurality of light sources () are mounted; a housing (), in which an opening is defined; a diffusion plate () that is disposed facing a bottom plate section () so as to close the opening; a duct () having an air inlet () and an air outlet (); a fan () that generates an airflow in the duct (); a first flow channel (P); and a second flow channel (P). The first flow channel (P) communicates a space inside of the housing () closed by the diffusion plate () with the inside of the duct (). The housing () is connected to, via a first opening () that is provided at the bottom plate section () or a side plate section (), a venturi section () that is formed between the air inlet () and the air outlet () of the duct (). Without being connected to the duct (), the second flow channel (P) communicates the inside and the outside of the housing () with each other via a second opening () that is provided at the bottom plate section () or the side plate section ().