Patents by Inventor Oliver Dross
Oliver Dross 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: 7755838Abstract: An optical manifold for efficiently combining a plurality of blue LED outputs to illuminate a phosphor for a single, substantially homogeneous output, in a small, cost-effective package. Embodiments are disclosed that use a single or multiple LEDs and a remote phosphor, and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. A further aperture mask is used to boost phosphor luminance with only modest loss of luminosity. Alternative non-recycling embodiments provide blue and yellow light in collimated beams, either separately or combined into white.Type: GrantFiled: August 6, 2007Date of Patent: July 13, 2010Assignee: Light Prescriptions Innovators, LLCInventors: Julio C. Chaves, Waqidi Falicoff, Juan C. Minaño, Pablo Benitez, Oliver Dross, William A. Parkyn, Jr.
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Patent number: 7729577Abstract: A waveguide version of a Kohler integrator is disclosed, utilizing geodesic lenses with a surface that can be mapped to a gradient-index Luneburg lens or to a nonfull-aperture Luneburg lens in such a way that the light paths in the gradient index lenses map into the geodesics of the surface, with the outer region of the gradient index lenses mapped into a flat surface. Arrays of these can be applied to lines of LEDs, as in CHMSLs, to mix light in intensity and in illumination as well as to avoid the deleterious effects of binning and burnout, or in multicolor arrays, to ensure complete chromatic mixing.Type: GrantFiled: June 4, 2007Date of Patent: June 1, 2010Assignee: Light Prescriptions Innovators, LLCInventors: Juan Carlos Miñano, Pablo Benitez, Dejan Grabovickic, José Blen, Maikel Hernandez, Rubén Mohedano, Oliver Dross
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Patent number: 7665858Abstract: Optical systems are described that have at least one source of a beam of blue light with divergence under 15°. A phosphor emits yellow light when excited by the blue light. A collimator is disposed with the phosphor and forms a yellow beam with divergence under 15°. A dichroic filter is positioned to transmit the beam of blue light to the phosphor and to reflect the beam of yellow light to an exit aperture. In different embodiments, the beams of blue and yellow light are incident upon said filter with central angles of 15°, 22°, and 45°. The filter may reflect all of one polarization and part of the other polarization, and a polarization rotating retroreflector may then be provided to return the unreflected light to the filter.Type: GrantFiled: November 2, 2007Date of Patent: February 23, 2010Inventors: Waqidi Falicoff, Julio C. Chaves, Juan Carlos Miñano, Pablo Benítez, Oliver Dross, William A. Parkyn, Jr.
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Publication number: 20100033946Abstract: The present embodiments provide methods and systems for use in providing enhanced illumination. Some embodiments include at least two light sources and one or more smoothly rotating wheels, where the one or more wheels comprises at least one mirror sector, the circumferential portion of the mirror sector is the inverse of the number of said sources, a first source of the sources is so disposed that the mirror sector reflects light from the first source into a common output path, where the first source pulsing such that a duty cycle of the first source corresponds to a time the mirror sector reflects light from the first source into the common output path.Type: ApplicationFiled: February 11, 2009Publication date: February 11, 2010Applicant: LIGHT PRESCRIPTIONS INNOVATORS, LLCInventors: Julio Cesar CHAVES, Juan Carlos MINANO, William A. PARKYN, JR., Waqidi FALICOFF, Pablo BENITEZ, Roberto ALVAREZ, Oliver DROSS
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Publication number: 20090323338Abstract: A cylindrical light source comprises multiple LEDs mounted on either the exterior or interior surface of the cylinder, with heat-sink fins respectively on its interior or exterior. The LEDs emit radially, but their emission is redirected along the cylinder axis by individual ellipsoidal reflectors.Type: ApplicationFiled: June 15, 2009Publication date: December 31, 2009Applicant: Light Prescriptions Innovators, Inc.Inventors: Ilya Agurok, Waqidi Falicoff, William A. Parkyn, JR., Oliver Dross
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Publication number: 20090180276Abstract: The present embodiments provide systems, backlights, films, apparatuses and methods of generating back lighting. Some embodiments provide backlights that include a cavity with at least one interior light source and diffusely reflecting wall of high reflectivity, a top surface with multiple intermittently spaced holes allowing exit of light generated by the light sources, and external collimators extending from each of the holes such that the external collimators spatially expand and angularly narrow the light exiting the holes.Type: ApplicationFiled: January 14, 2009Publication date: July 16, 2009Applicant: LIGHT PRESCRIPTIONS INNOVATORS, LLCInventors: Pablo Benitez, Juan Carlos Minano, Julio Chaves, William A. Parkyn, Oliver Dross, Roberto Alvarez, Waqidi Falicoff
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Publication number: 20090116215Abstract: Optical systems are described that have at least one source of a beam of blue light with divergence under 15°. A phosphor emits yellow light when excited by the blue light. A collimator is disposed with the phosphor and forms a yellow beam with divergence under 15°. A dichroic filter is positioned to transmit the beam of blue light to the phosphor and to reflect the beam of yellow light to an exit aperture. In different embodiments, the beams of blue and yellow light are incident upon said filter with central angles of 15°, 22°, and 45°. The filter may reflect all of one polarization and part of the other polarization, and a polarization rotating retroreflector may then be provided to return the unreflected light to the filter.Type: ApplicationFiled: November 2, 2007Publication date: May 7, 2009Applicant: Light Prescriptions Innovators, LLCInventors: Waqidi Falicoff, Julio C. Chaves, Juan Carlos Minano, Pablo Benitez, Oliver Dross, William A. Parkyn, JR.
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Publication number: 20090071467Abstract: The present embodiments provide methods and systems to homogenize illumination on a target.Type: ApplicationFiled: September 8, 2008Publication date: March 19, 2009Applicant: Light Prescriptions Innovators, LLCInventors: Pablo Benitez, Juan Carlos Minano, Maikel Hernandez, Jose Blen, Ruben Mohedano, Oliver Dross
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Publication number: 20090067179Abstract: An optical device for coupling the luminous output of a light-emitting diode (LED) to a predominantly spherical pattern comprises a transfer section that receives the LED's light within it and an ejector positioned adjacent the transfer section to receive light from the transfer section and spread the light generally spherically. A base of the transfer section is optically aligned and/or coupled to the LED so that the LED's light enters the transfer section. The transfer section can comprises a compound elliptic concentrator operating via total internal reflection. The ejector section can have a variety of shapes, and can have diffusive features on its surface as well, including a phosphor coating. The transfer section can in some implementations be polygonal, V-grooved, faceted and other configurations.Type: ApplicationFiled: September 12, 2008Publication date: March 12, 2009Applicant: LIGHT PRESCRIPTIONS INNOVATORS, LLCInventors: Julio Cesar Chaves, Juan Carlos Minano, Pablo Benitez, William A. Parkyn, JR., Waqidi Falicoff, Fernando Munoz, Yupin Sun, Oliver Dross, Roberto Alvarez
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Publication number: 20080316761Abstract: Some embodiments provide an illumination optical system. The optical system can include a first surface and a second surface. Each of the first and second surfaces can further comprises a multiplicity of corresponding Cartesian-oval lenticulations such that each lenticulation of the first surface focuses a source upon a corresponding lenticulation of the second surface and each lenticulation of the second surface focuses a target upon a corresponding lenticulation of the first surface.Type: ApplicationFiled: July 28, 2006Publication date: December 25, 2008Applicant: Light Prescriptions Innovators, LLCInventors: Juan Carlos Minano, Pablo Benitez, Maikel Hernandez, Jose Blen, Ruben Mohedano, Oliver Dross
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Publication number: 20080170296Abstract: An optical manifold for efficiently combining a plurality of blue LED outputs to illuminate a phosphor for a single, substantially homogeneous output, in a small, cost-effective package. Embodiments are disclosed that use a single or multiple LEDs and a remote phosphor, and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. A further aperture mask is used to boost phosphor luminance with only modest loss of luminosity. Alternative non-recycling embodiments provide blue and yellow light in collimated beams, either separately or combined into white.Type: ApplicationFiled: August 6, 2007Publication date: July 17, 2008Applicant: Light Prescriptions Innovators, LLCInventors: Julio C. Chaves, Waqidi Falicoff, Juan C. Minano, Pablo Benitez, Oliver Dross, William A. Parkyn
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Patent number: 7380962Abstract: An optical manifold for efficiently combining a plurality of blue LED outputs to illuminate a phosphor for a single, substantially homogeneous output, in a small, cost-effective package. Embodiments are disclosed that use a single or multiple LEDs and a remote phosphor, and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. A further aperture mask is used to boost phosphor luminance with only modest loss of luminosity. Alternative non-recycling embodiments provide blue and yellow light in collimated beams, either separately or combined into white.Type: GrantFiled: January 11, 2006Date of Patent: June 3, 2008Assignee: Light Prescriptions Innovators, LLCInventors: Julio C. Chaves, Waqidi Falicoff, Juan C. Minano, Pablo Benitez, William A. Parkyn, Jr., Roberto Alvarez, Oliver Dross
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Publication number: 20080002423Abstract: A waveguide version of a Kohler integrator is disclosed, utilizing geodesic lenses with a surface that can be mapped to a gradient-index Luneburg lens or to a nonfull-aperture Luneburg lens in such a way that the light paths in the gradient index lenses map into the geodesics of the surface, with the outer region of the gradient index lenses mapped into a flat surface. Arrays of these can be applied to lines of LEDs, as in CHMSLs, to mix light in intensity and in illumination as well as to avoid the deleterious effects of binning and burnout, or in multicolor arrays, to ensure complete chromatic mixing.Type: ApplicationFiled: June 4, 2007Publication date: January 3, 2008Applicant: LIGHT PRESCRIPTIONS INNOVATORS, INC.Inventors: Juan Minano, Pablo Benitez, Dejan Grabovickic, Jose Blen, Maikel Hernandez, Ruben Mohedano, Oliver Dross
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Patent number: 7286296Abstract: An optical manifold for efficiently combining a plurality of LED outputs into a single, substantially homogeneous output, in a small, cost-effective package. The optical manifolds can be used to combine multiple LEDs of the same color and provide a high intensity output aperture with very high uniformity and sharp borders, or they can be used to generate a multiwavelength output, such as red, green, and blue LEDs that are combined to generate white light. Embodiments are also disclosed that use a single or multiple LEDs and a remote phosphor and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. The optical manifolds are designed to alleviate substantial luminance inhomogeneities inherent to LEDs. The optical manifold utilizes principles of non-imaging optics to transform light and provide directed, substantially uniform light sources.Type: GrantFiled: April 25, 2005Date of Patent: October 23, 2007Assignee: Light Prescriptions Innovators, LLCInventors: Julio C. Chaves, Waqidi Falicoff, Juan C. Miñano, Pablo Benitez, Oliver Dross, William A. Parkyn, Jr., Roberto Alvarez
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Publication number: 20060239006Abstract: An optical manifold for efficiently combining a plurality of blue LED outputs to illuminate a phosphor for a single, substantially homogeneous output, in a small, cost-effective package. Embodiments are disclosed that use a single or multiple LEDs and a remote phosphor, and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. A further aperture mask is used to boost phosphor luminance with only modest loss of luminosity. Alternative non-recycling embodiments provide blue and yellow light in collimated beams, either separately or combined into white.Type: ApplicationFiled: January 11, 2006Publication date: October 26, 2006Inventors: Julio Chaves, Waqidi Falicoff, Juan Minano, Pablo Benitez, William Parkyn, Roberto Alvarez, Oliver Dross
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Publication number: 20050243570Abstract: An optical manifold for efficiently combining a plurality of LED outputs into a single, substantially homogeneous output, in a small, cost-effective package. The optical manifolds can be used to combine multiple LEDs of the same color and provide a high intensity output aperture with very high uniformity and sharp borders, or they can be used to generate a multiwavelength output, such as red, green, and blue LEDs that are combined to generate white light. Embodiments are also disclosed that use a single or multiple LEDs and a remote phosphor and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. The optical manifolds are designed to alleviate substantial luminance inhomogeneities inherent to LEDs. The optical manifold utilizes principles of non-imaging optics to transform light and provide directed, substantially uniform light sources.Type: ApplicationFiled: April 25, 2005Publication date: November 3, 2005Inventors: Julio Chaves, Waqidi Falicoff, Juan Minano, Pablo Benitez, Oliver Dross, William Parkyn, Roberto Alvarez