Patents by Inventor Mark D. Edmond
Mark D. Edmond has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9874322Abstract: Troffer-style lighting fixtures are disclosed having troffer housing with reflective regions, and respective light emitting diode (LED) arrays mounted in the reflective regions. The LED arrays are arranged to emit out of said troffer housing to illuminate a room below. The LED arrays can be driven by an elevated drive signal to produce a high luminous flux. The light fixtures according to the present invention can have lenses and diffusers over the arrays arranged to mix and disperse light from the light source to reduce hot spots and the appearance of individual LED colors. A plurality of first diffusers is included, each over a respective LED array. A second diffuser is included over the first diffusers, with the LED light passing through the diffusers prior to emitting from the lighting fixture. The diffusers can have shapes, surfaces or materials to disperse and/or mix the LED light as it emits.Type: GrantFiled: April 10, 2012Date of Patent: January 23, 2018Assignee: CREE, INC.Inventors: Mark D. Edmond, Paul Kenneth Pickard
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Patent number: 9777897Abstract: Lighting fixtures are described utilizing a plurality of light sources, or light engines, which are mounted together in a modular fashion in the light fixture opening. In some embodiments, the plurality of light sources can comprise lighting panels that together form the overall fixture light source. The present invention is particularly applicable to troffer-style lighting fixtures that can be arranged with a plurality of lighting panels arranged in the troffer opening to illuminate the space below the troffer. Embodiments of the present invention can also utilize solid state light sources for the lighting panels, with some embodiments utilizing light emitting diodes (LEDs).Type: GrantFiled: February 7, 2012Date of Patent: October 3, 2017Assignee: CREE, INC.Inventors: Paul Kenneth Pickard, Mark D. Edmond, Gerald Negley, Eric Tarsa
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Patent number: 9494294Abstract: A modular troffer-style lighting fixture. The fixture is particularly well-suited for use with solid state light sources, such as LEDs. Embodiments comprise a pan structure designed to house one or more modular light engine units within a central opening. Each light engine unit includes a reflective cup that can house several light sources on an interior mount surface. The cup is positioned proximate to a back reflector such that its open end faces a portion of the back reflector. The back reflector is shaped to define an interior chamber where light can be mixed and redirected. At least one elongated leg extends away from the reflective cup toward an edge of said back reflector. The leg(s) are used to mount the reflective cup relative to the back reflector and may also be used as a heat sink and/or an additional mount surface for light sources.Type: GrantFiled: March 23, 2012Date of Patent: November 15, 2016Assignee: CREE, INC.Inventors: Mark D. Edmond, Paul Kenneth Pickard, Larry T. Scearce, Jr., James Michael Lay, Praneet Athalye
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Patent number: 9285099Abstract: A parabolic troffer-style light fixture. The fixtures are sized to fit in, mount to, or suspend from a ceiling, such as being mounted in a conventional ceiling T-grid, for example. The fixture comprises a troffer housing that may be sized to fit in or rest on the T-grid, with the housing having a shape and size similar to those used for conventional fluorescent troffer lighting fixtures. The fixtures comprise a plurality of reflective louvers arranged in a grid that divides the fixture open end into a number of fixture regions with at least one functional louver providing a back side mount surface for light sources, for example, light emitting diodes. The functional louver mount surface faces a reflective back surface designed to redirect impinging light out of the fixture and into the lighted area.Type: GrantFiled: April 23, 2012Date of Patent: March 15, 2016Assignee: CREE, INC.Inventors: Paul Kenneth Pickard, Mark D. Edmond
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Patent number: 9151457Abstract: A lighting device comprising a junction box, a trim element and a solid state light emitter, at least a portion of a space defined by regions of the trim element within a space defined by regions of the junction box, the light emitter within the trim element space. A lighting device comprising a trim element (with at least two regions) and a solid state light emitter, in which at least a first part of the first region can be positioned in a first space with the second region outside the first space, the light emitter within the first part. A lighting device, comprising a trim element (which comprises at least two regions), part of an exterior of which defines a first space, at least a first part of the first region within the first space, a solid state light emitter within the first part. Methods of installing a light emitter.Type: GrantFiled: February 3, 2012Date of Patent: October 6, 2015Assignee: Cree, Inc.Inventors: Paul Kenneth Pickard, Nicholas W. Medendorp, Jr., Mark D. Edmond, Dong Lu, Curt Progl, Mark Dixon
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Patent number: 9151477Abstract: A lighting device configured to be held relative to a space extending from an opening in a first surface. A distance between first and second emitters and/or a dimension of a lens is/are larger than a largest dimension of the opening and/or a largest dimension of a power supply. Also, a bracket comprising a body member and at least two mounting clips, the body member configured to be attached to a lighting device, each mounting clip pivotable about respective pivot axes at least from a first position, where a first end region of the clip does not extend farther from an axis of the body member than all portions of the body member, to a second position, where the first end region of the clip extends farther from the axis of the body member than all portions of the body member. Also, a lighting device comprising a removable bracket.Type: GrantFiled: March 14, 2013Date of Patent: October 6, 2015Assignee: Cree, Inc.Inventors: Paul Kenneth Pickard, Nicholas W. Medendorp, Jr., Mark D. Edmond, Dong Lu, Curt Progl, Mark Dixon, Spencer Scott Pratt, Nathan R. Snell, James Michael Lay
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Patent number: 8901845Abstract: A lighting apparatus may include a plurality of light emitting devices, a temperature sensor, and a compensation circuit. The plurality of light emitting devices may include a first light emitting device configured to emit light having a first chromaticity, a second light emitting device configured to emit light having a second chromaticity different than the first chromaticity, and a third light emitting device configured to emit light having the second chromaticity. Moreover, the first, second, and third light emitting devices may be electrically coupled in series. The temperature sensor may be configured to generate a temperature sense signal responsive to heat generated by at least one of the plurality of light emitting devices.Type: GrantFiled: May 4, 2011Date of Patent: December 2, 2014Assignee: Cree, Inc.Inventors: Paul K. Pickard, Joseph P. Chobot, Mark D. Edmond
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Publication number: 20130279161Abstract: A parabolic troffer-style light fixture. The fixtures are sized to fit in, mount to, or suspend from a ceiling, such as being mounted in a conventional ceiling T-grid, for example. The fixture comprises a troffer housing that may be sized to fit in or rest on the T-grid, with the housing having a shape and size similar to those used for conventional fluorescent troffer lighting fixtures. The fixtures comprise a plurality of reflective louvers arranged in a grid that divides the fixture open end into a number of fixture regions with at least one functional louver providing a back side mount surface for light sources, for example, light emitting diodes. The functional louver mount surface faces a reflective back surface designed to redirect impinging light out of the fixture and into the lighted area.Type: ApplicationFiled: April 23, 2012Publication date: October 24, 2013Inventors: Paul Kenneth Pickard, Mark D. Edmond
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Publication number: 20130265751Abstract: Troffer-style lighting fixtures are disclosed having troffer housing with reflective regions, and respective light emitting diode (LED) arrays mounted in the reflective regions. The LED arrays are arranged to emit out of said troffer housing to illuminate a room below the troffer fixture. The LED arrays can be driven by an elevated drive signal to produce a relatively high luminous flux. The light fixtures according to the present invention can have lenses and diffusers over the arrays arranged to mix and disperse light from the light source to reduce or eliminate hot spots and to reduce or eliminate the appearance of the different LED colors. A plurality of first diffusers are included, each of which is over a respective one of the LED arrays. A second diffuser is included over the first diffusers, with the LED light passing through the first and second diffusers prior to emitting from the lighting fixture.Type: ApplicationFiled: April 10, 2012Publication date: October 10, 2013Inventors: MARK D. EDMOND, Paul Kenneth Pickard
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Publication number: 20130265750Abstract: A lighting device configured to be held relative to a space extending from an opening in a first surface. A distance between first and second emitters and/or a dimension of a lens is/are larger than a largest dimension of the opening and/or a largest dimension of a power supply. Also, a bracket comprising a body member and at least two mounting clips, the body member configured to be attached to a lighting device, each mounting clip pivotable about respective pivot axes at least from a first position, where a first end region of the clip does not extend farther from an axis of the body member than all portions of the body member, to a second position, where the first end region of the clip extends farther from the axis of the body member than all portions of the body member. Also, a lighting device comprising a removable bracket.Type: ApplicationFiled: March 14, 2013Publication date: October 10, 2013Inventors: Paul Kenneth Pickard, Nicholas W. Medendorp, JR., Mark D. Edmond, Dong Lu, Curt Progl, Mark Dixon, Spencer Scott Pratt, Nathan R. Snell, James Michael Lay
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Publication number: 20130250567Abstract: A modular troffer-style lighting fixture. The fixture is particularly well-suited for use with solid state light sources, such as LEDs. Embodiments comprise a pan structure designed to house one or more modular light engine units within a central opening. Each light engine unit includes a reflective cup that can house several light sources on an interior mount surface. The cup is positioned proximate to a back reflector such that its open end faces a portion of the back reflector. The back reflector is shaped to define an interior chamber where light can be mixed and redirected. At least one elongated leg extends away from the reflective cup toward an edge of said back reflector. The leg(s) are used to mount the reflective cup relative to the back reflector and may also be used as a heat sink and/or an additional mount surface for light sources.Type: ApplicationFiled: March 23, 2012Publication date: September 26, 2013Inventors: Mark D. Edmond, Paul Kenneth Pickard, Larry T. Scearce, JR., James Michael Lay, Praneet Athalye
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Publication number: 20130201670Abstract: Lighting fixtures are described utilizing a plurality of light sources, or light engines, which are mounted together in a modular fashion in the light fixture opening. In some embodiments, the plurality of light sources can comprise lighting panels that together form the overall fixture light source. The present invention is particularly applicable to troffer-style lighting fixtures that can be arranged with a plurality of lighting panels arranged in the troffer opening to illuminate the space below the troffer. Embodiments of the present invention can also utilize solid state light sources for the lighting panels, with some embodiments utilizing light emitting diodes (LEDs).Type: ApplicationFiled: February 7, 2012Publication date: August 8, 2013Inventors: PAUL KENNETH PICKARD, Mark D. Edmond, Gerald Negley, Eric Tarsa
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Publication number: 20130201679Abstract: A lighting device comprising a junction box, a trim element and a solid state light emitter, at least a portion of a space defined by regions of the trim element within a space defined by regions of the junction box, the light emitter within the trim element space. A lighting device comprising a trim element (with at least two regions) and a solid state light emitter, in which at least a first part of the first region can be positioned in a first space with the second region outside the first space, the light emitter within the first part. A lighting device, comprising a trim element (which comprises at least two regions), part of an exterior of which defines a first space, at least a first part of the first region within the first space, a solid state light emitter within the first part. Methods of installing a light emitter.Type: ApplicationFiled: February 3, 2012Publication date: August 8, 2013Applicant: Cree, Inc.Inventors: Paul Kenneth PICKARD, Nicholas W. Medendorp, JR., Mark D. Edmond, Dong Lu, Curt Progl, Mark Dixon
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Patent number: 8403531Abstract: There is provided a lighting device which emits light with an wall plug efficiency of at least 85 lumens per watt. The lighting device comprises at least one solid state light emitter, e.g., one or more light emitting diodes, and optionally further includes one or more luminescent material. In some embodiments, the output light is of a brightness of at least 300 lumens. In some embodiments, the output light has a CRI Ra of at least 90. Also, a method of lighting, comprising supplying electricity to a lighting device which emits light with a wall plug efficiency of at least 85 lumens per watt.Type: GrantFiled: November 25, 2008Date of Patent: March 26, 2013Assignee: Cree, Inc.Inventors: Gerald H. Negley, Antony Paul Van De Ven, Thomas G. Coleman, Mark D. Edmond
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Publication number: 20120280621Abstract: A lighting apparatus may include a plurality of light emitting devices, a temperature sensor, and a compensation circuit. The plurality of light emitting devices may include a first light emitting device configured to emit light having a first chromaticity, a second light emitting device configured to emit light having a second chromaticity different than the first chromaticity, and a third light emitting device configured to emit light having the second chromaticity. Moreover, the first, second, and third light emitting devices may be electrically coupled in series. The temperature sensor may be configured to generate a temperature sense signal responsive to heat generated by at least one of the plurality of light emitting devices.Type: ApplicationFiled: May 4, 2011Publication date: November 8, 2012Inventors: Paul K. Pickard, Joseph P. Chobol, Mark D. Edmond
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Publication number: 20110182065Abstract: A lighting device in which a solid state light emitter in a first multi-chip light emitter is spatially offset relative to a solid state light emitter in a second multi-chip light emitter. A lighting device comprising first, second and third multi-chip light emitters, in which any solid state light emitter in the second multi-chip light emitter that is spatially offset relative to a first solid state light emitter on the first multi-chip light emitter by less than 10 degrees emits light of a hue that differs from the hue of light emitted by the first solid state light emitter by more than seven MacAdam ellipses. A solid state light emitter support member comprising a center region and at least first, second and third protrusions extending from the center region. A lighting device comprising at least a first housing member, and means for emitting substantially uniform light.Type: ApplicationFiled: May 10, 2010Publication date: July 28, 2011Applicant: Cree LED Lighting Solutions, IncInventors: Gerald H. NEGLEY, Mark D. Edmond, Paul Kenneth Pickard
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Publication number: 20090161356Abstract: There is provided a lighting device which emits light with an wall plug efficiency of at least 85 lumens per watt. The lighting device comprises at least one solid state light emitter, e.g., one or more light emitting diodes, and optionally further includes one or more luminescent material. In some embodiments, the output light is of a brightness of at least 300 lumens. In some embodiments, the output light has a CRI Ra of at least 90. Also, a method of lighting, comprising supplying electricity to a lighting device which emits light with a wall plug efficiency of at least 85 lumens per watt.Type: ApplicationFiled: November 25, 2008Publication date: June 25, 2009Applicant: Cree LED Lighting Solutions, Inc.Inventors: Gerald H. Negley, Antony Paul Van De Ven, Thomas G. Coleman, Mark D. Edmond
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Patent number: D667156Type: GrantFiled: March 9, 2011Date of Patent: September 11, 2012Assignee: Cree, Inc.Inventors: Paul Kenneth Pickard, Mark D. Edmond, Dong Lu, Gerald Negley, Nick Nguyen, Patrick John O'Flaherty, Gary David Trott
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Patent number: D667983Type: GrantFiled: March 9, 2011Date of Patent: September 25, 2012Assignee: Cree, Inc.Inventors: Paul Kenneth Pickard, Mark D. Edmond, Dong Lu, Gerald Negley, Nick Nguyen, Patrick John O'Flaherty, Gary David Trott
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Patent number: D673711Type: GrantFiled: March 9, 2011Date of Patent: January 1, 2013Assignee: Cree, Inc.Inventors: Paul Kenneth Pickard, Mark D. Edmond, Dong Lu, Gerald Negley, Nick Nguyen, Patrick John O'Flaherty, Gary David Trott