Lin Li

US Patent:

7964883, Jun 21, 2011

Filed:

Feb 26, 2004

Appl. No.:

10/788116

Inventors:

Joseph Mazzochette - Cherry Hill NJ, US
Edmar Amaya - King of Prussia PA, US
Lin Li - Mount Laurel NJ, US
Greg E. Blonder - Summit NJ, US

Assignee:

Lighting Science Group Corporation - Satellite Beach FL

International Classification:

H01L 33/00

US Classification:

257 98, 257 88, 257 93, 257 99, 257100

Abstract:

In accordance with the invention, a light emitting diode package assembly is provided to emulate the pattern of light produced by an incandescent filament bulb. The package assembly is composed of a substrate for LEDs comprising a heat-sinking base having a pair of opposing major surfaces. Each major surface has an overlying of thermally conducting ceramic and an outer surface layer of light reflective material. Disposed on each surface layer is a plurality of LEDs. Advantageously, the LEDs are arranged on the surface in a configuration of low mutual obstruction. Advantageously, reflecting elements transverse to each surface layer are positioned and shaped to reflect a substantial portion of the light emitted from the LEDs that would otherwise enter neighboring LEDs. In a preferred embodiment, the LEDs are arranged in the general form of a closed curve, and a transverse reflector is disposed in the interior of the curve. Alternatively, the LEDs can be arranged in a linear array.

US Patent:

20190167116, Jun 6, 2019

Filed:

Nov 15, 2018

Appl. No.:

16/192229

Inventors:

Yu Chen - College Park MD, US
Qinggong Tang - College Park MD, US
Udayakumar Kanniyappan - Hyattsville MD, US
Lin Z. Li - Aston PA, US
He Xu - Lansdowne PA, US
Yi Liu - College Park MD, US
Emily Conant - Philadelphia PA, US

International Classification:

A61B 5/00
A61B 1/07
A61B 1/04
A61B 1/06
A61B 1/00
A61B 10/02

Abstract:

In accordance with aspects of the present disclosure, an exemplary system includes a hollow probe having a lumen containing one or more excitation optical fiber(s) and one or more imaging optical fiber(s) where the probe is sized to access a person's body, a first light source optically coupled to the excitation fiber(s) and configured to emit light that excites fluorescence of NADH in breast tissue, a second light source optically coupled to the excitation fiber(s) and configured to emit light that excites fluorescence of FAD in tissue such as breast tissue, an image capturing device optically coupled to the imaging fiber(s), and a controller configured to control the first light source and the image capturing device to capture NADH fluorescence signals/intensities while the probe is within the person's body and control the second light source and the image capturing device to capture FAD fluorescence signals/intensities while the probe is within the person's body.