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:
Jan. 16, 2018
Filed:
May. 20, 2014
Philips Lighting Holding B.v., Eindhoven, NL;
Gabriel-Eugen Onac, Veldhoven, NL;
Marcellinus Petrus Carolus Michael Krijn, Eindhoven, NL;
Jochen Renaat Van Gheluwe, Lommel, BE;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
An optical element for use in front of a light source for obtaining a skylight appearance, and a luminaire are provided. The optical element comprising a plurality of light transmitting cells in a raster structure, a diffuser and an edge wall. A light source emits light towards the raster structure. The raster structure collimates a part of the light and transmits a further part of the light in a predetermined spectral range. White light and colored light that is transmitted by the raster structure may impinge upon the side wall of the optical element. One face of the side wall is a region of specular reflectivity and will reflect the light that impinges upon it back into the chamber that is formed by the cooperation of the raster structure, the diffuser and the edge wall. Light exits the optical element through the diffuser.