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:
Apr. 10, 2018
Filed:
Nov. 04, 2014
Philips Lighting Holding B.v., Eindhoven, NL;
Silvia Maria Booij, Eindhoven, NL;
Ronald Cornelis De Gier, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
An acoustic lighting tile () comprises a cavity () having a side wall () forming an opening in the cavity (). An acoustic element () absorbs sound incident to the cavity (). A light source carrier () is arranged along the side wall () and extends a first distance (D) along a horizontal direction into the cavity (). A light source () is mounted on the Slight source carrier () and emits light (L, L, L) in a vertical main direction into the cavity (), away from the opening of the cavity (). A reflective surface () reflects at least a subset of the light (L, L, L) emitted by the light source () towards the opening. A diffusing element () at least partially covers the opening at a second distance (D) from the light source carrier () and diffuses light passing through the opening. The second distance (D) is at least as large as the first distance (D). The distance (D) between the light source carrier () and the diffusing element () provides a mixing space which facilitates provision of a more uniform illumination.