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. 24, 2018
Filed:
Sep. 19, 2011
Michel Cornelis Josephus Marie Vissenberg, Roermond, NL;
Antonius Petrus Marinus Dingemans, Tilburg, NL;
Marcus Jozef Van Bommel, Waalre, NL;
Erik Paul Boonekamp, Utrecht, NL;
Michel Cornelis Josephus Marie Vissenberg, Roermond, NL;
Antonius Petrus Marinus Dingemans, Tilburg, NL;
Marcus Jozef Van Bommel, Waalre, NL;
Erik Paul Boonekamp, Utrecht, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
Today the use of false ceilings is decreasing as it involves too high an energy consumption. The tendency nowadays is to have bare concrete ceilings onto which luminaires are mounted, which often causes acoustical problems. The invention deals with these acoustical problems and relates to an illumination device () comprising a concave reflector () bordering, with an outer edge (), on a light emission window (). The reflector has a reflective surface () facing the light emission window. The illumination device further comprises lamp holding means () for accommodating a light source (), and said lamp holding means being positioned in between the reflective surface and the light emission window. The illumination device is characterized in that the reflector is made of acoustically absorbing material.