Jason L Posselt

US Patent:

6590235, Jul 8, 2003

Filed:

Feb 2, 2001

Appl. No.:

09/775765

Inventors:

Julian A. Carey - Sunnyvale CA
Jason L. Posselt - San Jose CA

Assignee:

Lumileds Lighting, U.S., LLC - San Jose CA

International Classification:

H01L 3300

US Classification:

257 98

Abstract:

An LED component is provided, with light emission in the green-to-near UV wavelength range. The light-emitting semiconductor die is encapsulated with one or more silicone compounds, including a hard outer shell, an interior gel or resilient layer, or both. The silicone material is stable over temperature and humidity ranges, and over exposure to ambient UV radiation. As a consequence, the LED component has an advantageously long lifetime, in which it is free of âyellowingâ attenuation which would reduce the green-to-near UV light output.

US Patent:

6933535, Aug 23, 2005

Filed:

Oct 31, 2003

Appl. No.:

10/699433

Inventors:

Daniel A. Steigerwald - Cupertino CA, US
William D. Collins III - San Jose CA, US
Robert M. Fletcher - San Jose CA, US
Michael J. Ludowise - San Jose CA, US
Jason L. Posselt - San Jose CA, US

Assignee:

Lumileds Lighting U.S., LLC - San Jose CA

International Classification:

H01L033/00

US Classification:

257 89, 257 79, 257 94, 257 95, 257 98, 257 99, 257100, 257103, 313501, 313502, 313503

Abstract:

A structure includes semiconductor light emitting device and a wavelength converting layer. The wavelength converting layer converts a portion of the light emitted from the semiconductor light emitting device. The dominant wavelength of the combined light from the semiconductor light emitting device and the wavelength converting layer is essentially the same as the wavelength of light emitted from the device. The wavelength converting layer may emit light having a spectral luminous efficacy greater than the spectral luminous efficacy of the light emitted from the device. Thus, the structure has a higher luminous efficiency than a device without a wavelength converting layer.

US Patent:

8084777, Dec 27, 2011

Filed:

Mar 24, 2009

Appl. No.:

12/410208

Inventors:

Jason Posselt - Sunnyvale CA, US

Assignee:

Bridgelux, Inc. - Livermore CA

International Classification:

H01L 33/00

US Classification:

257 99, 257 81, 257 98, 257100, 257433, 257684, 257687, 257709, 257E21499, 257E23002, 257E23003, 257E23004, 257E23007, 257E23008, 438 25, 438 26, 438 29, 438 64, 438126

Abstract:

An apparatus having a substrate, an LED light source attached to the substrate, an electrical connector attached to the substrate and electrically connected to the LED light source, a potting material on the substrate and covering at least a portion of the electrical connector; and a barrier separating the potting material from the LED light source, the barrier having a height that exceeds the thickness of the potting material on the substrate.

US Patent:

8096675, Jan 17, 2012

Filed:

Dec 23, 2008

Appl. No.:

12/343080

Inventors:

Jason L. Posselt - Sunnyvale CA, US

Assignee:

Bridgelux Inc. - Sunnyvale CA

International Classification:

F21V 33/00

US Classification:

362230, 362800

Abstract:

The instant invention discloses a device and method to mix and match LED die at a LED emitter or array level in an array to obtain a consistent average weighted wavelength, and/or desired flux, reducing the spread of a color range and therefore reducing the observed LED color range. The mixing of different wavelength and flux LED's expands the color gamut of the LEDs available to be used in a particular luminaire with a given color specification.

US Patent:

20100046221, Feb 25, 2010

Filed:

Aug 19, 2008

Appl. No.:

12/194134

Inventors:

Jason Loomis Posselt - San Jose CA, US
Michael Solomensky - Fremont CA, US
Steven D. Lester - Palo Alto CA, US
Ghulam Hasnain - Palo Alto CA, US

International Classification:

F21S 4/00
H01J 9/24
F21V 15/00

US Classification:

36224902, 445 23, 362373

Abstract:

A light source and method for making the same are disclosed. The light source includes a housing, a drive assembly, and an LED. The housing has an interior compartment enclosed in an outer surface having a heat dissipating surface and first and second power terminals that are accessible from outside the interior compartment. The drive assembly is located in the interior compartment and electrically connected to the first and second power terminal. The LED is directly attached to the heat dissipating surface and electrically insulated therefrom, the LED having first and second LED power contacts. The housing has first and second housing power terminals disposed outside the housing, electrically isolated from the heat-dissipating surface, and connected to the drive assembly. A first conductor connects the first LED power contact to the first housing power terminal. A second conductor connects the LED second power contact to the second housing power terminal.

US Patent:

20100270580, Oct 28, 2010

Filed:

Apr 22, 2009

Appl. No.:

12/428389

Inventors:

Jason Loomis Posselt - San Jose CA, US

International Classification:

H01L 33/00
H01L 21/00

US Classification:

257100, 438 26, 257E33059, 257E21001

Abstract:

A light source and method for making the same are disclosed. The light source includes a base member and a lead structure. The lead structure is attached to the base member such that the lead structure extends beyond the base member and has an opening for accessing a surface of the base member. A die containing a light emitting semiconductor device is bonded to the surface of the base member. The die is electrically connected to the lead structure and overlaid with a transparent material. An electrically insulating layer is bonded between the lead structure and the base member, the electrically insulating layer having an opening for accessing the surface of the base member. The electrically insulating layer can be an adhesive for bonding the lead structure to the base member.

US Patent:

20100301356, Dec 2, 2010

Filed:

Dec 22, 2009

Appl. No.:

12/645284

Inventors:

Keith SCOTT - Sunnyvale CA, US
Jason Posselt - Sunnyvale CA, US
Rene Helbing - Sunnyvale CA, US

Assignee:

Bridgelux, Inc. - Sunnyvale CA

International Classification:

H01L 33/00

US Classification:

257 91, 257 98, 257 99, 257E33056, 257E33075, 257E33067

Abstract:

A light source includes a mount having first and second opposite surfaces, a first light emitting element having one or more solid state light emitting cells arranged to emit light from the first surface of the mount, and a second light emitting element having one or more solid state light emitting cells arranged to emit light from the second surface of the mount. The first and second light emitting elements are arranged such that the light emitted from the light source produces a substantially spherical emission pattern.

US Patent:

20100301726, Dec 2, 2010

Filed:

Dec 22, 2009

Appl. No.:

12/645234

Inventors:

Rene HELBING - Sunnyvale CA, US
Keith Scott - Sunnyvale CA, US
Jason Posselt - Sunnyvale CA, US

Assignee:

Bridgelux, Inc. - Sunnyvale CA

International Classification:

H01J 61/52
H01J 5/48
H01J 1/62

US Classification:

313 46, 31331811, 313483

Abstract:

A light emitting apparatus includes a substrate, a plurality of solid state light emitting cells having a planar arrangement on the substrate, and one or more reflectors arranged with the solid state light emitting cells so that light emitted from the light source has a substantially spherical emission pattern.