Optical diffuser

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front perspective view of an optical diffuser according to the invention.

FIG. 2 is a front elevation view of an optical diffuser according to the invention.

FIG. 3 is a top plan view of an optical diffuser according to the invention.

FIG. 4 is a bottom plan view of an optical diffuser according to the invention; and,

FIG. 5 is a front perspective view of an optical diffuser according to the invention as it may be used atop a light emitting diode (LED) light bulb base with heat sink.

Items shown in broken lines are for illustrative purposes only and form no part of the claimed invention.

Claims

We claim the ornamental design for an optical diffuser, as shown and described.

Referenced Cited
U.S. Patent Documents
D154730 August 1949 Zabel
D158033 April 1950 Zabel
2987640 June 1961 Paolino
D240956 August 1976 Holmes
4630177 December 16, 1986 Von Kohorn et al.
D306118 February 20, 1990 Guerrero
D368670 April 9, 1996 Taylor
D461233 August 6, 2002 Whalen
D469565 January 28, 2003 Anderson
D558549 January 1, 2008 Ozaki-Owen
D613885 April 13, 2010 Lodhie
D623338 September 7, 2010 Mo
D650097 December 6, 2011 Trumble et al.
D683867 June 4, 2013 Rioux et al.
D690053 September 17, 2013 Zhang
D698982 February 4, 2014 Scatena
D702326 April 8, 2014 Dannrup
D703482 April 29, 2014 D'Amore et al.
8764247 July 1, 2014 Pattekar et al.
D720876 January 6, 2015 Haverfield
D792016 July 11, 2017 de Bevilacqua
20070159828 July 12, 2007 Wang
20090103293 April 23, 2009 Harbers et al.
20090290343 November 26, 2009 Brown et al.
20100165632 July 1, 2010 Liang
20100314985 December 16, 2010 Premysler
20110080096 April 7, 2011 Dudik et al.
20110115358 May 19, 2011 Kim
20110156584 June 30, 2011 Kim
20110267801 November 3, 2011 Tong et al.
20120044642 February 23, 2012 Rodriguez
20120057327 March 8, 2012 Le et al.
20120080699 April 5, 2012 Chowdhury et al.
20120182736 July 19, 2012 Lee et al.
20120188767 July 26, 2012 Igaki et al.
20120230036 September 13, 2012 Yu
Foreign Patent Documents
1453107 September 2004 EP
WO2009/071111 June 2009 WO
WO2011109092 September 2011 WO
WO2011109098 September 2011 WO
Patent History
Patent number: D806308
Type: Grant
Filed: Oct 12, 2015
Date of Patent: Dec 26, 2017
Assignee: PALO ALTO RESEARCH CENTER INCORPORATED (Palo Alto, CA)
Inventors: Ashish Pattekar (Cupertino, CA), Christopher Paulson (Livermore, CA), Ramkumar Abhishek (Menlo Park, CA), Patrick Yasuo Maeda (San Jose, CA)
Primary Examiner: Brian N. Vinson
Application Number: 29/542,137
Classifications
Current U.S. Class: Openwork (D26/121)