Patents by Inventor James Christopher Dunphy
James Christopher Dunphy 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: 8472102Abstract: An illumination source and a method therefor. A light source includes a light circuit configured to process light and direct light, and a lighting element optically coupled to the light circuit to provide multiple colors of light. The light circuit propagates light using light guides. The use of light guides eliminates the use of free space optical elements, enabling the creation of more compact light sources. Furthermore, the use of light guides may enable the creation of light sources with fewer mechanical restrictions, thereby making the light sources potentially more reliable and less expensive.Type: GrantFiled: October 3, 2011Date of Patent: June 25, 2013Assignee: Texas Instruments IncorporatedInventors: Regis Grasser, Steven Werner Gensler, James Christopher Dunphy
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Publication number: 20120026213Abstract: An illumination source and a method therefor. A light source includes a light circuit configured to process light and direct light, and a lighting element optically coupled to the light circuit to provide multiple colors of light. The light circuit propagates light using light guides. The use of light guides eliminates the use of free space optical elements, enabling the creation of more compact light sources. Furthermore, the use of light guides may enable the creation of light sources with fewer mechanical restrictions, thereby making the light sources potentially more reliable and less expensive.Type: ApplicationFiled: October 3, 2011Publication date: February 2, 2012Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Regis Grasser, Steven Werner Gensler, James Christopher Dunphy
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Patent number: 8031390Abstract: An illumination source and a method therefor. A light source includes a light circuit configured to process light and direct light, and a lighting element optically coupled to the light circuit to provide multiple colors of light. The light circuit propagates light using light guides. The use of light guides eliminates the use of free space optical elements, enabling the creation of more compact light sources. Furthermore, the use of light guides may enable the creation of light sources with fewer mechanical restrictions, thereby making the light sources potentially more reliable and less expensive.Type: GrantFiled: May 14, 2010Date of Patent: October 4, 2011Assignee: Texas Instruments IncorporatedInventors: Regis Grasser, Steven Werner Gensler, James Christopher Dunphy
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Patent number: 7995258Abstract: Improvement of speckling noise is discussed in which a central light beam received at a double-sided mirror is divided into a plurality of sub-beams. An intensity of these sub-beams decays from a second sub-beam to a last sub-beam of the plurality. Each sub-beam is also separated at the double-sided mirror by at least a first length, such as the coherence length or intrinsic divergence, and reflected toward a display screen. The configuration of the double-sided mirror focuses the sub-beams to converge with a first sub-beam on the display screen at different angles. The decreasing intensity and different angles of impact with the screen decreases the spatial coherence of the display light. The angle diversity and combination of multiple sub-beams having different intensities offers a non-time-averaging means to decrease speckle noise without downgrading the beam quality or display resolution.Type: GrantFiled: December 6, 2007Date of Patent: August 9, 2011Assignee: Texas Instruments IncorporatedInventor: James Christopher Dunphy
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Publication number: 20100220051Abstract: An illumination source and a method therefor. A light source includes a light circuit configured to process light and direct light, and a lighting element optically coupled to the light circuit to provide multiple colors of light. The light circuit propagates light using light guides. The use of light guides eliminates the use of free space optical elements, enabling the creation of more compact light sources. Furthermore, the use of light guides may enable the creation of light sources with fewer mechanical restrictions, thereby making the light sources potentially more reliable and less expensive.Type: ApplicationFiled: May 14, 2010Publication date: September 2, 2010Applicant: Texas Instruments IncorporatedInventors: Regis Grasser, Steven Werner Gensler, James Christopher Dunphy
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Patent number: 7719766Abstract: An illumination source and a method therefor. A light source includes a light circuit configured to process light and direct light, and a lighting element optically coupled to the light circuit to provide multiple colors of light. The light circuit propagates light using light guides. The use of light guides eliminates the use of free space optical elements, enabling the creation of more compact light sources. Furthermore, the use of light guides may enable the creation of light sources with fewer mechanical restrictions, thereby making the light sources potentially more reliable and less expensive.Type: GrantFiled: June 20, 2007Date of Patent: May 18, 2010Assignee: Texas Instruments IncorporatedInventors: Regis Grasser, Steven Werner Gensler, James Christopher Dunphy
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Publication number: 20090147222Abstract: Improvement of speckling noise is discussed in which a central light beam received at a double-sided mirror is divided into a plurality of sub-beams. An intensity of these sub-beams decays from a second sub-beam to a last sub-beam of the plurality. Each sub-beam is also separated at the double-sided mirror by at least a first length, such as the coherence length or intrinsic divergence, and reflected toward a display screen. The configuration of the double-sided mirror focuses the sub-beams to converge with a first sub-beam on the display screen at different angles. The decreasing intensity and different angles of impact with the screen decreases the spatial coherence of the display light. The angle diversity and combination of multiple sub-beams having different intensities offers a non-time-averaging means to decrease speckle noise without downgrading the beam quality or display resolution.Type: ApplicationFiled: December 6, 2007Publication date: June 11, 2009Inventor: James Christopher Dunphy
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Publication number: 20090059336Abstract: System and method for increasing display brightness in laser illuminated display systems. An illumination source includes a light source to produce light, a disk having a set of lens elements arranged in a circular ring around a center of the disk, a motor coupled to the disk, and an external lens positioned in a light path of the coherent light source. As the disk rotates, the lens elements are moved sequentially through the light, angularly deflecting the light, which may be corrected by the external lens into a spatial deflection. The spatially deflected light may be used to simultaneously illuminate a surface with more than one color of light, thereby increasing the brightness of the light source.Type: ApplicationFiled: August 30, 2007Publication date: March 5, 2009Inventors: James Christopher Dunphy, Hongqin Shi, Regis Grasser, Jeffrey Scott Farris
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Publication number: 20080316567Abstract: An illumination source and a method therefor. A light source includes a light circuit configured to process light and direct light, and a lighting element optically coupled to the light circuit to provide multiple colors of light. The light circuit propagates light using light guides. The use of light guides eliminates the use of free space optical elements, enabling the creation of more compact light sources. Furthermore, the use of light guides may enable the creation of light sources with fewer mechanical restrictions, thereby making the light sources potentially more reliable and less expensive.Type: ApplicationFiled: June 20, 2007Publication date: December 25, 2008Inventors: Regis Grasser, Steven Werner Gensler, James Christopher Dunphy