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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.:

US 9874317 B1

PDFFull Text
Date of Patent:
Jan. 23, 2018

Filed:

Apr. 25, 2014

Solid state lighting device

Applicant:

Philips Lighting Holding B.v., Eindhoven, NL;

Inventors:

Durandus Kornelius Dijken, Eindhoven, NL;

Rifat Ata Mustafa Hikmet, Eindhoven, NL;

Leendert Van Der Tempel, Eindhoven, NL;

Ties Van Bommel, Horst, NL;

Assignee:

PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;

Attorney:

Akarsh P. Belagodu

Primary Examiner:

Alexander Garlen

Int. Cl.
CPC ...
F21S 4/00 (2016.01); F21V 3/00 (2015.01); F21V 5/00 (2015.01); F21V 21/30 (2006.01); F21K 99/00 (2016.01); F21V 8/00 (2006.01); F21V 29/00 (2015.01); F21V 29/56 (2015.01); F21V 29/83 (2015.01); F21V 29/70 (2015.01); F21V 13/08 (2006.01); F21K 9/61 (2016.01); F21K 9/64 (2016.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01); F21Y 103/33 (2016.01);
U.S. Cl.
CPC ...
F21K 9/52 (2013.01); F21K 9/61 (2016.08); F21K 9/64 (2016.08); F21V 13/08 (2013.01); F21V 29/2212 (2013.01); F21V 29/56 (2015.01); F21V 29/70 (2015.01); F21V 29/83 (2015.01); G02B 6/0003 (2013.01); G02B 6/0006 (2013.01); G02B 6/0008 (2013.01); G02B 6/0096 (2013.01); F21Y 2103/10 (2016.08); F21Y 2103/33 (2016.08); F21Y 2115/10 (2016.08);
Abstract

An SSL lighting device () comprising a housing (), which has a reflective inner surface (), and an elongated light guide () which includes a wavelength converting material () for converting light in a first wavelength range to light in a second wavelength range. The elongated light guide () comprises two ends (), a portion for receiving light () and a portion for emitting light (). The portion for receiving light () is arranged inside the housing () and the portion for emitting light () is arranged outside the housing () and at least one of the two ends () forms the portion () for emitting light. The SSL lighting device () also comprises a plurality of SSL light sources () arranged inside the housing () at a distance from the elongated light guide (). A part of the light emitted from the plurality of SSL light sources () into the housing () enters the light guide () via the portion for receiving light () and is absorbed and converted by the wavelength converting material (). By enclosing the light sources () and a portion of the light guide () inside a housing () with a reflective inner surface () and by having a wavelength conversion process occurring inside the light guide (), this construction enables light from several light sources () to be used for providing a single high-intensity and high-power light source.

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