Jason Deshi Li

US Patent:

D587823, Mar 3, 2009

Filed:

May 3, 2007

Appl. No.:

29/286371

Inventors:

Jason J Li - Boxford MA, US
Glenn Freeman - Danvers MA, US

Assignee:

Osram Sylvania Inc. - Danvers MA

International Classification:

2604

US Classification:

D26 2

US Patent:

7541726, Jun 2, 2009

Filed:

May 17, 2006

Appl. No.:

11/436001

Inventors:

Jason J. Li - Boxford MA, US
Alexander N. Kasak - Marcellus NY, US
Heinz W. Sell - Cushing ME, US
Alan L. Lenef - Belmont MA, US
Raymond T. Fleming - Lexington KY, US
Richard C. Laird - El Paso TX, US

Assignee:

Osram Sylvania Inc. - Danvers MA

International Classification:

H01K 1/14

US Classification:

313315

Abstract:

A base-up incandescent lamp () includes a coiled-coil filament () that has a primary wire () and a secondary wire (), the primary wire () comprising an overwind that overlies the secondary wire () and provides a lower filament temperature and, therefore, less filament sag and a concomitant longer lamp life.

US Patent:

7575343, Aug 18, 2009

Filed:

May 17, 2007

Appl. No.:

11/804264

Inventors:

Jason J. Li - Boxford MA, US
Harold Rothwell, Jr. - Hopkinton NH, US
David M. Hrubowchak - Lithcfield NH, US

Assignee:

Osram Sylvania Inc. - Danvers MA

International Classification:

F21V 7/00

US Classification:

362304, 362297, 362309, 362329, 362519, 313113, 313110, 313579

Abstract:

A PAR lamp () has a body () with an internal reflector surface () disposed about a longitudinal axis (). A cavity () is provided at one end () of the body () and an arc discharge tube () that provides a substantially spherical light source is positioned in the cavity () and disposed on the longitudinal axis (). A cover receiving opening () is provided at a second end () of the body and a cover () closes the cover receiving opening (). A plurality of spiral facets () is formed on the internal reflector surface (), the plurality of spiral facets () being sufficient in number to increase the maximum beam candle power and decrease the beam angle when compared to faceted lamps having a lesser number of facets. The number of facets is equal to or greater than 75 and preferably is 100.

US Patent:

D630773, Jan 11, 2011

Filed:

Mar 23, 2010

Appl. No.:

29/349292

Inventors:

Jason J. Li - Boxford MA, US
Jane Beasley - Beverly MA, US
David M. Hrubowchak - Litchfield NH, US

Assignee:

Osram Sylvania Inc. - Danvers MA

International Classification:

2604

US Classification:

D26 2

US Patent:

7931514, Apr 26, 2011

Filed:

May 9, 2008

Appl. No.:

12/151820

Inventors:

Jason J Li - Boxford MA, US
Andrew Johnsen - Danvers MA, US
Glenn Freeman - Danvers MA, US
Harold Rothwell - Hopkington NH, US
Randall Brown - Barrington NH, US

Assignee:

Osram Sylvania Inc. - Danvers MA

International Classification:

H01J 9/00
H01J 9/34
H01J 9/36

US Classification:

445 22, 445 26, 445 27

Abstract:

An integral HID reflector lamp may be formed with an HID held in a reflector. An inner element is mechanically coupled to the reflector. The inner element is formed with a first mechanical coupling to mate with the reflector, a second mechanical coupling to mate with a circuit board, and an electrical coupling to at least electrically couple one of the leads to the circuit board. A circuit board has an edge mechanically coupled to the inner element and electrically connected to the leads by an electrical coupling on the inner element. A heat sink spans at least one side of the circuit board and forming an EMI shielding. An outer cover encloses the heat sink, circuit board, and inner element and coupled to the assembly of the reflector, HID lamp, inner element, and heat sink with each elements of the assembly clipped together.

US Patent:

20210025550, Jan 28, 2021

Filed:

Oct 8, 2020

Appl. No.:

17/065847

Inventors:

- Wilmington MA, US
Jason Li - Boxford MA, US

International Classification:

F21K 9/237
F21V 23/06
F21K 9/232

Abstract:

A light engine comprising a substantially tubular substrate including base portion with a plurality of slots, a first group of at least two filament LEDs on a first portion of the substantially tubular substrate, and a second group of at least two filament LEDs on a second portion of the substantially tubular substrate. Each of the first and second groups of the at least two filament LEDs being electrically connected through a base electrode to electrode contacts in the slots. The light engine also includes an electrical bus wire present proximate to the end of the substantially tubular substrate that is opposite the end at the base portion of the substantially tubular substrate, the electrical bus wire in contact with each filament LED for each of the first and second groups of at least two filament LEDs.

US Patent:

20200278088, Sep 3, 2020

Filed:

Feb 14, 2020

Appl. No.:

16/790900

Inventors:

Arunava Dutta - Winchester MA, US
Jason Li - Boxford MA, US

Assignee:

LEDVANCE LLC - WILMINGTON MA

International Classification:

F21K 9/232
F21S 2/00
F21K 9/23
H01L 25/075
H01L 33/62
F21K 9/20

Abstract:

A light engine that includes electrical leads extending into a supporting stem and a filament assembly having a V-shaped geometry in electrical connection with the electrical leads. The filament assembly includes at least two light emitting diode (LED) filaments wherein a first end of the filament assembly is in electrical contact with the electrical leads and provides an apex portion of the V-shaped geometry, and a second end of the filament assembly opposite the first end has a second width greater than the first width of the apex portion. An electrically conductive pathway connects the at least two light emitting diode (LED) filaments at the second end of the filament assembly.

US Patent:

20200088355, Mar 19, 2020

Filed:

Sep 19, 2018

Appl. No.:

16/135027

Inventors:

- Wilmington MA, US
Jason Li - Boxford MA, US

International Classification:

F21K 9/237
F21K 9/232
F21V 23/06

Abstract:

A light engine comprising a substantially tubular substrate including base portion with a plurality of slots, a first group of at least two filament LEDs on a first portion of the substantially tubular substrate, and a second group of at least two filament LEDs on a second portion of the substantially tubular substrate. Each of the first and second groups of the at least two filament LEDs being electrically connected through a base electrode to electrode contacts in the slots. The light engine also includes an electrical bus wire present proximate to the end of the substantially tubular substrate that is opposite the end at the base portion of the substantially tubular substrate, the electrical bus wire in contact with each filament LED for each of the first and second groups of at least two filament LEDs.