1
Hyunchul Ko, Randall E Johnson, Dung T Duong, Paul N Winberg: System and method for a lens and phosphor layer. Illumitex, Sprinkle IP Law Group, May 28, 2013: US08449128 (30 worldwide citation)

Embodiments disclosed herein provide optical systems utilizing photon conversion materials in conjunction with a light source and an LED. An LED can be positioned in a cavity defined by a base and one or more sidewalls. Phosphors can be disposed on the entrance face of a lens between the entrance fa ...


2
Dung T Duong, Hyunchul Ko, Randall E Johnson, Paul N Winberg, Emil Radkov: System and method for color mixing lens array. Illumitex, Sprinkle IP Law Group, November 19, 2013: US08585253 (29 worldwide citation)

Embodiments described herein provide optical systems that can mix colors to produce illumination patterns having a large area with uniform color. One embodiment of an optical system can include a set of optical units that each produces an illumination pattern with uniform color and intensity. The op ...


3
Dung T Duong, Paul N Winberg, Oscar Vaz: Systems and methods for packaging light-emitting diode devices. Illumitex, Sprinkle IP Law Group, February 14, 2012: US08115217 (26 worldwide citation)

Embodiments disclosed herein provide packaged LED devices in which the majority of the emitted light comes out the top of each LED chip with very little side emissions. Because light only comes out from the top, phosphor deposition and color temperature control can be significantly simplified. A pac ...


4
Dung T Duong, Paul N Winberg, Matthew R Thomas: Separate optical device for directing light from an LED. Illumitex, Sprinkle IP Law Group, August 10, 2010: US07772604 (22 worldwide citation)

Embodiments of the present invention provide separate optical devices operable to couple to a separate LED, the separate optical device comprising an entrance surface to receive light from a separate LED when the separate optical device is coupled to the separate LED, an exit surface opposite from a ...


5
Dung T Duong, Paul N Winberg, Matthew R Thomas: LED system and method. Illumitex, Sprinkle IP Law Group, September 7, 2010: US07789531 (13 worldwide citation)

Embodiments provide an LED comprising a quantum well region operable to generate light and a substrate having an interface with the quantum well region, wherein light generated by the quantum well region traverses the interface to enter the substrate and exit the LED through an exit face of the subs ...


6
Dung T Duong, Paul N Winberg, Matthew R Thomas: Separate optical device for directing light from an LED. Illumitex, Sprinkle IP Law Group, June 28, 2011: US07968896 (11 worldwide citation)

Embodiments of the present invention provide separate optical devices operable to couple to a separate LED, the separate optical device comprising an entrance surface to receive light from a separate LED when the separate optical device is coupled to the separate LED, an exit surface opposite from a ...


7
Dung T Duong, Paul N Winberg, Matthew R Thomas, Elliot M Pickering, Muhammad Khizar: System and method for emitter layer shaping. Illumitex, Sprinkle IP Law Group, November 9, 2010: US07829358 (11 worldwide citation)

Embodiments of an LED disclosed has an emitter layer shaped to a controlled depth or height relative to a substrate of the LED to maximize the light output of the LED and to achieve a desired intensity distribution. In some embodiments, the exit face of the LED may be selected to conserve radiance. ...


8
Dung T Duong, Paul N Winberg, Matthew R Thomas, Elliot M Pickering: LED system and method. Illumitex, Sprinkle IP Law Group, January 3, 2012: US08087960 (9 worldwide citation)

Embodiments provide an LED comprising a quantum well region operable to generate light and a substrate having an interface with the quantum well region, wherein light generated by the quantum well region traverses the interface to enter the substrate and exit the LED through an exit face of the subs ...


9
Dung T Duong, Paul N Winberg, Matthew R Thomas, Elliot M Pickering, Muhammad Khizar: System and method for emitter layer shaping. Illumitex, Sprinkle IP Law Group, September 11, 2012: US08263993 (6 worldwide citation)

Embodiments of an LED disclosed has an emitter layer shaped to a controlled depth or height relative to a substrate of the LED to maximize the light output of the LED and to achieve a desired intensity distribution. In some embodiments, the exit face of the LED may be selected to conserve radiance. ...


10
Nicholas Peter Klase, Dung T Duong, Emil Radkov, Paul N Winberg: Plant growth lighting device and method. ILLUMITEX, Sprinkle IP Law Group, June 23, 2015: US09060468 (5 worldwide citation)

Embodiments described herein provide systems and methods for promoting plant growth that combine beam angle control with spectral control. In one embodiment, an optical device can be configured to emit multiple colors of light at particular wavelengths. The optical device may also be configured to g ...