Jinhui Z Zhai

7325956, Feb 5, 2008

Jun 22, 2005

11/158792

Israel J. Morejon - Tampa FL, US
Jinhui Zhai - Clearwater FL, US
Haizhang Li - Orlando FL, US

Jabil Circuit, Inc. - St. Petersburg FL

F21V 7/04

362555, 362551, 362561, 362800, 353 31, 353 33, 353 34, 353102, 353 98, 353 99, 359618, 359619

A light illumination system for projecting a color image to a digital micro-mirror display (DMD) panel includes a light-emitting diode (LED) illumination assembly (), a dichroic combiner () for providing a single light source and a condenser lens system (FIGS. -) for directing light from the single light source to the DMD panel. The invention provides a cost effective and efficient system for providing a non-polarized uniform light source to a DMD panel.

7325957, Feb 5, 2008

Jun 22, 2005

11/158806

Israel J. Morejon - Tampa FL, US
Jinhui Zhai - Clearwater FL, US
Haizhang Li - Orlando FL, US
Robert J. Pantalone - Clearwater FL, US

Jabil Circuit, Inc. - St. Petersburg FL

F21V 7/04

362555, 362551, 362561, 362800, 353 31, 353 33, 353 34, 353102, 353 98, 353 99, 359618, 359619

A polarized light illumination system includes a light emitting diode (LED) () for providing a source of light that is directed to a non-polarizing dichroic combiner () for combining light from the LEDs into a single light source. A power beam splitter (PBS) () is then used for splitting the single light source into polarized light components and an output waveguide () operates to provide a source of uniformly illuminated light. A condenser lens () then projects the uniformly illuminated light to a microdisplay panel () for use with a television receiver or other type of display monitor.

7437039, Oct 14, 2008

Oct 21, 2005

11/256561

Israel J. Morejon - Tampa FL, US
Jinhui Zhai - Clearwater FL, US
Tom R. Greenwood - Terra Ceia FL, US
Mark A. Dickson - Lutz FL, US

Jabil Circuit, Inc. - St. Petersburg FL

G02B 6/04

385120, 385 89, 353 31

An image presentation device () with an associated optical light engine includes one or more semiconductor light emitting diodes or other such devices () that are combined to provide a source of light to a micro-display panel (). Light integrators (), preferably shaped to correspond to the shape of the light emitting devices, are located such that a portion of each terminal is positioned adjacent to or in direct contact with the light emitting surface of the semiconductor dies.

7600882, Oct 13, 2009

Jan 20, 2009

12/356206

Israel J. Morejon - Tampa FL, US
Jinhui Zhai - Oldsmar FL, US
Thong Bui - Tarpon Springs FL, US

LEDnovation, Inc. - Tampa FL

F21V 9/16

362 84, 36224902, 36224914, 362231, 362240, 36224906

The invention discloses a high efficiency incandescent and Compact Fluorescent (CFL) bulb replacement LED lamp having a good color reproduction. The LED light bulb includes two groups of semiconductor light emitters and a luminescent material to emit four different spectrums of light. The two groups of semiconductor light emitters are enclosed around an interior wall of the light bulb housing, which has a plurality of fins at an exterior surface for effective heat dissipation. A high reflective member having a dome shape in the center is disposed under the two groups of semiconductor light emitters to redirect the emission and excitation lights from the two groups of semiconductor light emitters and recycle the backscattered light for multi-spectrum light mixing. The LED-light bulb further includes a single power line connecting to the two groups of semiconductor light emitters and a high efficiency electrical AC/DC conversion and control device. The light bulb has a diffuser dome for an output window and a conventional Edison-mount screw-type light bulb socket, a conventional fluorescent tube coupler arrangement or a conventional halogen MR-16 socket arrangement connecting to an AC power base.

7804103, Sep 28, 2010

Jan 7, 2009

12/349880

Jinhui Zhai - Oldsmar FL, US
Israel Morejon - Tampa FL, US
Thong Bui - Tarpon Springs FL, US

LEDnovation, Inc. - Tampa FL

H01L 33/00

257 98, 257 79, 257 88, 257 89, 257 99

A high color rendering index (CRI) white light emitting device from a short wavelength semiconductor die is encapsulated with nanoparticle-loaded resin. Trichromatic wavelength conversion micro-particles are dispersed layer by layer in a converting sequence from a long emission spectrum to a short emission spectrum. The refractive index of wavelength conversion micro-particles matches that of the nanoparticle-loaded encapsulants.

7834372, Nov 16, 2010

Dec 16, 2008

12/336107

Jinhui Zhai - Oldsmar FL, US
Israel Morejon - Tampa FL, US
Thong Bui - Tarpon Springs FL, US

H01L 33/60

257 98, 257 88, 257 95, 257 99, 257100, 257E33058, 257E33055, 257E33072

A high luminous flux warm white solid state lighting device with a high color rendering is disclosed. The device comprising two groups of semiconductor light emitting components to emit and excite four narrow-band spectrums of lights at high luminous efficacy, wherein the semiconductor light emitting components are directly mounted on a thermal effective dissipation member; a mixing cavity for blending the multi-spectrum of lights; a back-transferred light recycling member deposited on top of an LED driver and around the semiconductor light emitters; and a diffusive member to diffuse the mixture of output light from the solid state lighting device. The solid state lighting device produces a warm white light with luminous efficacy at least 80 lumens per watt and a color rendering index at least 85 for any lighting application.

7922355, Apr 12, 2011

Dec 16, 2008

12/336129

Israel J. Morejon - Tampa FL, US
Jinhui Zhai - Oldsmar FL, US
Thong Bui - Tarpon Springs FL, US

LEDnovation, Inc. - Tampa FL

F21V 7/00

362247, 362545, 362347, 36224902

A solid state lighting device includes a light mixing cavity enclosed by a diffusive output window, heat sink walls, and a light-redirection member. A plurality of circumferentially spaced apart light emitters is secured to an interior surface of the heat sink walls. The diffusive output window and light-redirection member are therefore disposed at opposite ends of the light mixing cavity. A semiconductor lighting device driver is disposed external to the light mixing cavity in electrical communication with the light emitters. Light emitted by the plurality of light emitters is reflected from the light-redirection member and from the heat sink walls prior to exiting the light mixing cavity through the diffusive output window.

7923741, Apr 12, 2011

Jan 5, 2009

12/348356

Jinhui Zhai - Oldsmar FL, US
Israel J. Morejon - Tampa FL, US

LEDnovation, Inc. - Tampa FL

H01L 33/60

257 98, 257 99, 257100, 257E33061

A semiconductor lighting device includes at least one semiconductor light emitter and at least one wavelength converting element, physically separated from the light emitter. At least one wavelength converting element has a reflective member underneath it, so that both primary light and converted light from the wavelength converting layer become a forward transferred light preventing from backscattering loss into the light emitter. The reflective member may be a thermal conductive element to effectively remove the heat from the wavelength converting element. Accordingly, the remote wavelength conversion on a reflective surface improves the thermal stability of the wavelength conversion material and prevents backscattering loss to produce a higher radiance result from the device.