Patents by Inventor William Parkyn
William Parkyn 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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Publication number: 20080074752Abstract: An embodiment of an optical manifold has first and second collimators, each arranged to receive light from a source and transmit the light to an exit port of the collimator, and a separator arranged to emit some of the light from the exit ports of the first and second collimators and to recycle some of the light into the collimators. Another embodiment has at least three collimators of substantially equal length and having central axes, respective light sources at entry ports of the collimators, the collimators being arranged with their central axes parallel and with their light sources in a common plane and reflectors positioned to direct light from exit ports of the collimators to a selectively reflective component that guides all the light into a common exit beam.Type: ApplicationFiled: August 8, 2007Publication date: March 27, 2008Applicant: LIGHT PRESCRIPTIONS INNOVATORS, LLCInventors: Julio Chaves, Waqidi Falicoff, Juan Minano, Pablo Benitez, William Parkyn
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Patent number: 7347599Abstract: In some embodiments, an apparatus for use generating illumination is provided that comprises a reflective base, a first light source positioned proximate the reflective base, and a reimaging reflector positioned partially about the first light source, where a percentage of light emitted from the first light source is reflected from the reimaging reflector to the reflective base adjacent the first light source establishing a first real image. The reimaging reflector can further comprise a first sector of a first ellipsoid and a second sector of a second ellipsoid, where the first and second sectors establish the first and a second real image. Further embodiments provide a lens that includes a reimaging reflector that receives light and reflects the light establishing a first real image. The reimaging reflector can further comprise a plurality of sectors that reflect light to establish first and second real images.Type: GrantFiled: January 21, 2005Date of Patent: March 25, 2008Assignee: Light Prescriptions Innovators, LLCInventors: Juan C. Miñano, Pablo Benitez, Waqidi Falicoff, Yupin Sun, William A. Parkyn, Roberto Alvarez
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Patent number: 7329029Abstract: 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. The transfer section can in some implementations be polygonal, V-grooved, faceted and other configurations.Type: GrantFiled: March 31, 2004Date of Patent: February 12, 2008Assignee: Light Prescriptions Innovators, LLCInventors: Julio Cesar Chaves, Juan Carlos Minano, Pablo Benitez, William A. Parkyn, Jr., Waqidi Falicoff, Fernando Munoz, Yupin Sun
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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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Patent number: 7273299Abstract: A cylindrical irradiance-redistribution lens is positioned over a line of LEDs, and is shaped to redistribute their light for uniformly illuminating a nearby planar target, such as shelves, signs, or walls. The lens shape is calculated via matching the cumulative lateral flux functions of the line of LEDs with that of the uniformly illuminated planar target. Numerous preferred embodiments are disclosed for a variety of illumination geometries.Type: GrantFiled: January 17, 2006Date of Patent: September 25, 2007Assignee: Pelka & AssociatesInventors: William A. Parkyn, David G. Pelka
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Publication number: 20070058369Abstract: Various embodiments described herein comprise array of light emitting diodes and a cylindrical lens having front and rear curved surfaces. The cylindrical lens is disposed to receive light from the light emitting diodes and to redistribute the light. The cylindrical lens is located no more than about 8 inches distance from the front an illumination target, which may for example, comprise products on shelves in a refrigerator. The front and rear surfaces of the cylindrical lens are shaped to provide substantially uniform illumination across the target.Type: ApplicationFiled: July 26, 2006Publication date: March 15, 2007Inventors: William Parkyn, David Pelka
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Patent number: 7144121Abstract: A white beam with high color-rendering index is formed by uniting a collimated red beam and a collimated blue-green beam, the latter having as its source a blue LED with a green phosphor. The white beam is formed by a prism with an amber low-pass dichroic filter. The prism cross-section can be either a square or an equilateral triangle. The triangular prism can have one third of its mass reduced by stepped facets. Both types of prism can be elongated to accommodate multiple collimators. Switching between white, red, and blue-green allows application to police vehicles.Type: GrantFiled: November 12, 2004Date of Patent: December 5, 2006Assignee: Light Prescriptions Innovators, LLCInventors: Juan Carlos Minano, Pablo Benitez, William A Parkyn, Jr.
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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: 20060164833Abstract: A cylindrical irradiance-redistribution lens is positioned over a line of LEDs, and is shaped to redistribute their light for uniformly illuminating a nearby planar target, such as shelves, signs, or walls. The lens shape is calculated via matching the cumulative lateral flux functions of the line of LEDs with that of the uniformly illuminated planar target. Numerous preferred embodiments are disclosed for a variety of illumination geometries.Type: ApplicationFiled: January 17, 2006Publication date: July 27, 2006Inventors: William Parkyn, David Pelka
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Patent number: 7042655Abstract: The present embodiments provide methods, apparatuses, and assemblies for use in producing a desired output beam that meets a desired intensity prescription. An apparatus can include an input surface, and an optically active output surface that receives a collimated beam, such that the output surface refractively maps an illuminance distribution of the collimated beam into a prescribed intensity pattern. The apparatus can include a collimating lens that collimates an input beam. Additionally, the output surface can be defined according to a cumulative illumination integral for the illuminance distribution and a cumulative illumination integral of the intensity pattern.Type: GrantFiled: December 1, 2003Date of Patent: May 9, 2006Assignee: Light Prescriptions Innovators, LLCInventors: Yupin Sun, Waqidi Falicoff, William A. Parkyn, Jr.
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Patent number: 7021797Abstract: An optical device is for spatially displacing the output of a light-emitting diode (LED) and coupling the output to a predominantly spherical emission pattern produced at a useftul height above the LED. The device is made of a transparent dielectric material, such as an injection-molded plastic. It comprises a lower transfer section that receives the LED's light from below and an upper ejector section that receives the transferred light and spreads it spherically. One or more LEDs. are optically coupled to the bottom of the transfer section, which operates by total internal reflection upon their entire hemispherical emission. One embodiment operates as a flashlight-bulb substitute with the ejector section radiating onto a parabolic reflector, which forms the beam. Thus hemisphencally emitting LEDs can be used in parabolic-mirror flashlights wherein these LEDs by themselves may be unsuitable for that role.Type: GrantFiled: June 12, 2003Date of Patent: April 4, 2006Assignee: Light Prescriptions Innovators, LLCInventors: Juan C. Mi{overscore (n)}ano, Pablo Benitez, William A. Parkyn, Jr., Waqidi Falicoff
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Patent number: 7006306Abstract: The present embodiments provide methods and apparatuses for providing prescribed illumination. Some embodiments provide lenses that include a two-dimensional beam-forming lens-profile where the profile acts to deflect light rays from a light source into a relatively narrow output beam. A zone of higher refractive index than that of the area outside the profile is enclosed where the higher refractive-index zone admits the light rays, a transverse axis of revolution is further included and extends transversely across and outside of the lens-profile so that the transverse axis extends generally laterally with respect to a luminous centroid-direction of the output beam. The lens further includes a surface of revolution formed by circularly sweeping the lens-profile about the axis of revolution forming a circumferential beam from the output beam emitted by said surface of revolution.Type: GrantFiled: July 29, 2004Date of Patent: February 28, 2006Assignee: Light Prescriptions Innovators, LLCInventors: Waqidi Falicoff, William A. Parkyn, Jr., Yupin Sun, Juan Carlos Minano, Pablo Benitez
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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
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Publication number: 20050225988Abstract: 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. The transfer section can in some implementations be polygonal, V-grooved, faceted and other configurations.Type: ApplicationFiled: March 31, 2004Publication date: October 13, 2005Applicant: Light Prescriptions Innovators, LLCInventors: Julio Chaves, Juan Minano, Pablo Benitez, William Parkyn, Waqidi Falicoff, Fernando Munoz, Yupin Sun
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Patent number: 6924943Abstract: The present invention relates to an improvement of a total internal reflection lens whereby a tilted symmetry axis leads to a net deflection of the output beam away from the surface normal of the exit surface. Linear TIR lenses have a net deflection transverse to their focal strip. Circular TIR lens profiles going beyond 90° are tilted to bring the rim level with the source, the deflected rays exiting the lens to form an off-axis beam.Type: GrantFiled: July 18, 2003Date of Patent: August 2, 2005Assignee: Light Prescriptions Innovators, LLCInventors: Juan C. Minano, Waqidi Falicoff, Pablo Benitez, William A. Parkyn, Julio Pinto Chaves, Yupin Sun
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Publication number: 20050129358Abstract: In some embodiments, an apparatus for use generating illumination is provided that comprises a reflective base, a first light source positioned proximate the reflective base, and a reimaging reflector positioned partially about the first light source, where a percentage of light emitted from the first light source is reflected from the reimaging reflector to the reflective base adjacent the first light source establishing a first real image. The reimaging reflector can further comprise a first sector of a first ellipsoid and a second sector of a second ellipsoid, where the first and second sectors establish the first and a second real image. Further embodiments provide a lens that includes a reimaging reflector that receives light and reflects the light establishing a first real image. The reimaging reflector can further comprise a plurality of sectors that reflect light to establish first and second real images.Type: ApplicationFiled: January 21, 2005Publication date: June 16, 2005Applicant: Light Prescriptions Innovators, LLC a Delaware limited liability companyInventors: Juan Minano, Pablo Benitez, Waqidi Falicoff, Yupin Sun, William Parkyn, Roberto Alvarez
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Publication number: 20050117125Abstract: A white beam with high color-rendering index is formed by uniting a collimated red beam and a collimated blue?green beam, the latter having as its source a blue LED with a green phosphor. The white beam is formed by a prism with an amber low-pass dichroic filter. The prism cross-section can be either a square or an equilateral triangle. The triangular prism can have one third of its mass reduced by stepped facets. Both types of prism can be elongated to accommodate multiple collimators. Switching between white, red, and blue?green allows application to police vehicles.Type: ApplicationFiled: November 12, 2004Publication date: June 2, 2005Inventors: Juan Minano, Pablo Benitez, William Parkyn
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Publication number: 20050088758Abstract: In some embodiments, an apparatus for use generating illumination is provided that comprises a reflective base, a first light source positioned proximate the reflective base, and a reimaging reflector positioned partially about the first light source, where a percentage of light emitted from the first light source is reflected from the reimaging reflector to the reflective base adjacent the first light source establishing a first real image. The reimaging reflector can further comprise a first sector of a first ellipsoid and a second sector of a second ellipsoid, where the first and second sectors establish the first and a second real image. Further embodiments provide a lens that includes a reimaging reflector that receives light and reflects the light establishing a first real image. The reimaging reflector can further comprise a plurality of sectors that reflect light to establish first and second real images.Type: ApplicationFiled: February 3, 2004Publication date: April 28, 2005Applicant: Light Prescriptions Innovators, LLC, a Delaware Limited liability companyInventors: Juan Minano, Pablo Benitez, Waqidi Falicoff, Yupin Sun, William Parkyn, Roberto Alvarez
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Publication number: 20050028524Abstract: Disclosed is a floating altazimuth-tracking array of point-pocus lenses that concentrate direct sunlight on the upper ends of optical-homogenizer rods bonded to high-efficiency multi-junction photnvoltaic cells. The cells are on heat sinks in altitude-tracking linear troughs holding multiple lens-rod-cell assemblies. Swiveling on horizontal axes, the troughs have their heat sinks always submerged in the water of a circular pond. Only knee-high al-together, the troughs and their floating frame rotate in the shallow pond for azimuth tracking. Closely packed floating platforms comprise solar electric farms with maximal land utilization.Type: ApplicationFiled: October 9, 2002Publication date: February 10, 2005Inventors: Nikolaus Laing, William Parkyn Jr, Inge Laing
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Publication number: 20050024744Abstract: The present embodiments provide methods and apparatuses for providing prescribed illumination. Some embodiments provide lenses that include a two-dimensional beam-forming lens-profile where the profile acts to deflect light rays from a light source into a relatively narrow output beam. A zone of higher refractive index than that of the area outside the profile is enclosed where the higher refractive-index zone admits the light rays, a transverse axis of revolution is further included and extends transversely across and outside of the lens-profile so that the transverse axis extends generally laterally with respect to a luminous centroid-direction of the output beam. The lens further includes a surface of revolution formed by circularly sweeping the lens-profile about the axis of revolution forming a circumferential beam from the output beam emitted by said surface of revolution.Type: ApplicationFiled: July 29, 2004Publication date: February 3, 2005Applicant: Light Prescriptions Innovators, LLCInventors: Waqidi Falicoff, William Parkyn, Yupin Sun, Juan Minano, Pablo Benitez