Patents Assigned to Light Prescriptions Innovators, LLC
-
Patent number: 10317606Abstract: An etendue squeezing optic includes light guiding elements that are extruded sideways to guide light to a wide outlet surface for efficient injection into an edge face of a flat light guide such as a backlight panel for a visual display, in combination with a light source optically coupled to the light inlet through an air-gap, so that light entering the optic through the air-gap is confined to a cone of directions determined by a critical angle of refraction into the optic from air at the air-gap.Type: GrantFiled: December 10, 2015Date of Patent: June 11, 2019Assignee: Light Prescriptions Innovators, LLCInventors: Julio C Chaves, Pablo Benitez, Juan Carlos Minano, Waqidi Falicoff
-
Publication number: 20180112227Abstract: A light funnel collimator has a central lens surface and a back reflecting surface, shaped to provide a wider background beam and a narrower hotspot beam within but off-center of the wider beam. One of the beams is on-axis of the collimator, and the other beam is off-axis. The reflector is at least partly asymmetrical relative to the axis, and provides or contributes to the off-axis beam.Type: ApplicationFiled: December 15, 2017Publication date: April 26, 2018Applicant: Light Prescriptions Innovators, LLCInventors: Oliver DROSS, Fernando MUNOZ
-
Patent number: 9885458Abstract: A light funnel collimator has a central lens surface and a back reflecting surface, shaped to provide a wider background beam and a narrower hotspot beam within but off-center of the wider beam. One of the beams is on-axis of the collimator, and the other beam is off-axis. The reflector is at least partly asymmetrical relative to the axis, and provides or contributes to the off-axis beam.Type: GrantFiled: January 21, 2011Date of Patent: February 6, 2018Assignee: Light Prescription Innovators, LLCInventors: Oliver Dross, Fernando Munoz
-
Patent number: 9709242Abstract: A shell integrator has a hollow transparent body with inner and outer surfaces formed as arrays of lenslets. Each lenslet of the inner surface images a common source region in the middle of the hollow body onto a respective lenslet of the outer surface. Each lenslet of the outer surface forms a virtual image of the respective lenslet of the inner surface at the common source region. One integrator has a light-guide following the surface of the hollow body from an inlet end at a central region of the surface to an outlet end at a rim of the hollow body. The light-guide inlet end is shaped to receive light from the common source region and direct such light along the light-guide. Another integrator is generally elongated, and may be semicylindrical. Any of these integrators may have a stepped surface forming a Fresnel lens.Type: GrantFiled: January 5, 2015Date of Patent: July 18, 2017Assignee: Light Prescriptions Innovators, LLCInventors: Pablo Benitez, Julio C. Chaves, Ruben Mohedano, Aleksandra Cvetkovic, Juan Carlos Minano, Waqidi Falicoff
-
Patent number: 9689546Abstract: A vehicle lighting unit can be configured to include a thin light guide. The vehicle lighting unit can include a solid light guide having a first surface including an internal reflection portion and a light exiting portion that are formed as a single continued surface, a second surface opposite to the first surface, and a light incident surface through which light enters the light guide so that the light reaches and is internally reflected off the internal reflection portion of the first surface, then is internally reflected off the reflection portion of the second surface, and exits through the light exiting portion of the first surface. The reflection portion of the second surface can include a plurality of divided reflection regions, and the reflection regions can include at least one reflection region disposed at a reference position and at least one reflection region disposed at a position closer to the light exiting surface than the reference position.Type: GrantFiled: November 24, 2014Date of Patent: June 27, 2017Assignees: Light Prescriptions Innovators, LLC, Stanley Electric Co., Ltd.Inventors: Ruben Mohedano, Pablo Benitez, Juan Carlos Minano, Masafumi Ohno
-
Patent number: 9574735Abstract: A luminaire has a light source and a shell integrator. The shell integrator has a transparent dome over the light source, with inner and outer surfaces formed as arrays of lenslets. Each lenslet of the inner surface images the light source onto a respective lenslet of the outer surface, and each lenslet of the outer surface images the respective lenslet of the inner surface as a virtual image onto the light source. The dome may be substantially hemispherical. The light source and the integrator may be at an input of a collimator.Type: GrantFiled: September 22, 2011Date of Patent: February 21, 2017Assignee: Light Prescriptions Innovators, LLCInventors: Pablo Benitez, Oliver Dross, Maikel Hernandez, Juan Carlos Minano
-
Patent number: 9360675Abstract: An optical component called the Phase Space Combiner (PSC) is designed to join several bundles of rays. The bundles of rays, when represented in ray phase-space, occupy non-connected regions before passing through the PSC, while their representation in ray phase space occupies a single simply connected region (without holes) after passing through the PSC. Obviously, when used in reverse way it splits one bundle in several parts. We present herein the idea of using Multiple Individual Optics, MIO, not for collimating the light from the LEDs but as a PSC. Then a Single Common Optics, SCO, which can be an optical train, is used to get the desired intensity pattern. This hybrid SCO and MIO strategy combines most of the advantages of both approaches.Type: GrantFiled: November 15, 2012Date of Patent: June 7, 2016Assignee: Light Prescriptions Innovators, LLCInventors: Juan Carlos Miñano, Pablo Benitez
-
Patent number: 9328894Abstract: A light engine has a pillar with first and second ends; a circuit board on the first end of the pillar, a light source mounted on the circuit board encircling the pillar and facing towards the second end of the pillar, and a surface extending from the second end of the pillar, that surface and the exterior of the pillar between that surface and the circuit board being coated with a reflective remote phosphor that is excited by light from the light source. The light engine may be used in a light bulb, with a frosted globe enclosing the circuit board and mounted round the outer edge of the phosphor-coated surface, and an Edison screw or other standard base connected to the second end of the pillar.Type: GrantFiled: October 22, 2010Date of Patent: May 3, 2016Assignee: Light Prescriptions Innovators, LLCInventors: Waqidi Falicoff, Yupin Sun, Will Shatford, William Parkyn
-
Patent number: 9123849Abstract: Some photovoltaic cells have a front face accepting incoming incident light and opaque gridlines overlying part of the front face, electrically bonded to the face, with upper reflective facets oblique to the plane of the front face and producing outgoing reflected light. An optical interface parallel to and in front of the front face transmits incoming light to the front face and to the gridlines and reflects back towards the front face by total internal reflection at least some of the outgoing reflected light. Some photovoltaic devices have a triple junction photovoltaic cell, a single junction photovoltaic cell, and a reflective surface arranged to distribute incoming light between the cells. The surface may be a frequency-selective mirror that apportions light so when the cells are in series the power produced, and preferably the photocurrent, is greater than if all the light fell on the triple junction cell alone.Type: GrantFiled: April 23, 2010Date of Patent: September 1, 2015Assignee: Light Prescriptions Innovators, LLCInventors: Pablo Benitez, Juan Carlos Miñano, Rubén Mohedano, Waqidi Falicoff
-
Patent number: 8939579Abstract: A pair of eyewear has transparent waveguides in each eyewear lens. An illumination subsystem directs a beam of light through the waveguides onto a wearer's eyes. A First Purkinje point imaging subsystem for each lens uses light reflected from the eyes through the waveguides. A controller calculates from the positions of the First Purkinje points the wearer's gaze parallax angle and/or the distance to an object of interest on which the gaze of the wearer's eyes converges. The output of the controller may drive variable-focus eyeglass lenses to enable a presbyopic wearer to focus on the object. Modified Alvarez variable-focus lenses are described.Type: GrantFiled: January 26, 2012Date of Patent: January 27, 2015Assignee: Light Prescriptions Innovators, LLCInventor: Ilya Agurok
-
Patent number: 8896198Abstract: An LED lamp is disclosed comprising a remote phosphor patch on or near the interior surface of a translucent sphere. The phosphor is illuminated by an adjacent light box containing blue LEDs, located within the lamp below the transmissive phosphor patch or alternatively above a reflective phosphor patch. The reflective patch can be either fully or partially populated with phosphor. Below the light box is an electronics bay, and below that is an Edison screw-in base.Type: GrantFiled: May 19, 2011Date of Patent: November 25, 2014Assignee: Light Prescriptions Innovators, LLCInventors: Waqidi Falicoff, Yupin Sun, Will Shatford
-
Patent number: 8879253Abstract: An optoelectronic cooling system is equally applicable to an LED collimator or a photovoltaic solar concentrator. A transparent fluid conveys heat from the optoelectronic chip to a hollow cover over the system aperture. The cooling system can keep a solar concentrator chip at the same temperature as found for a one-sun flat-plate solar cell. Natural convection or forced circulation can operate to convey heat from the chip to the cover.Type: GrantFiled: February 3, 2009Date of Patent: November 4, 2014Assignee: Light Prescriptions Innovators, LLCInventors: Juan Carlos Minano, Pablo Benitez
-
Patent number: 8749898Abstract: One optical system comprises a first optical surface, a faceted second optical surface, and a faceted third optical surface. The optical system is operative to convert a first bundle of rays that is continuous in phase space outside the first optical surface into a second bundle of rays that is continuous in phase space outside the third optical surface. Between the second and third optical surfaces the rays making up the first and second bundles form discrete sub-bundles each passing from a facet of the second optical surface to a facet of the third optical surface. The sub-bundles do not form a continuous bundle in a phase space that has dimensions representing the position and angle at which rays cross a surface transverse to the bundle of rays.Type: GrantFiled: August 20, 2010Date of Patent: June 10, 2014Assignee: Light Prescriptions Innovators, LLCInventors: Juan Carlos Miñano, Pablo Benítez, Julio C. Chaves, Maikel Hernandez
-
Patent number: 8631787Abstract: The present embodiments provide methods and systems to homogenize illumination on a target.Type: GrantFiled: September 8, 2008Date of Patent: January 21, 2014Assignee: Light Prescriptions Innovators, LLCInventors: Pablo Benitez, Juan Carlos Minano, Maikel Hernandez, Jose Blen, Ruben Mohedano, Oliver Dross
-
Publication number: 20130194811Abstract: A luminaire has a light source and a shell integrator. The shell integrator has a transparent dome over the light source, with inner and outer surfaces formed as arrays of lenslets. Each lenslet of the inner surface images the light source onto a respective lenslet of the outer surface, and each lenslet of the outer surface images the respective lenslet of the inner surface as a virtual image onto the light source. The dome may be substantially hemispherical. The light source and the integrator may be at an input of a collimator.Type: ApplicationFiled: September 22, 2011Publication date: August 1, 2013Applicant: LIGHT PRESCRIPTIONS INNOVATORS, LLCInventors: Pablo Benitez, Oliver Dross, Maikel Hernandez, Juan Carlos Minano
-
Publication number: 20130120849Abstract: An optical component called the Phase Space Combiner (PSC) is designed to join several bundles of rays. The bundles of rays, when represented in ray phase-space, occupy non-connected regions before passing through the PSC, while their representation in ray phase space occupies a single simply connected region (without holes) after passing through the PSC. Obviously, when used in reverse way it splits one bundle in several parts. We present herein the idea of using Multiple Individual Optics, MIO, not for collimating the light from the LEDs but as a PSC. Then a Single Common Optics, SCO, which can be an optical train, is used to get the desired intensity pattern. This hybrid SCO and MIO strategy combines most of the advantages of both approaches.Type: ApplicationFiled: November 15, 2012Publication date: May 16, 2013Applicant: LIGHT PRESCRIPTIONS INNOVATORS, LLCInventor: LIGHT PRESCRIPTIONS INNOVATORS, LLC
-
Patent number: 8419232Abstract: 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: GrantFiled: July 28, 2006Date of Patent: April 16, 2013Assignee: Light Prescriptions Innovators, LLCInventors: Juan Carlos Minano, Pablo Benitez, Maikel Hernandez, Jose Blen, Ruben Mohedano, Oliver Dross
-
Patent number: 8393777Abstract: Some embodiments provide luminance-preserving non-imaging backlights that comprise a luminous source emitting light, an input port that receives the light, an injector and a beam-expanding ejector. The injector includes the input port and a larger output port with a profile that expands away from the input port acting via total internal reflection to keep x-y angular width of the source image inversely proportional to its luminance. The injector is defined by a surface of revolution with an axis on the source and a swept profile that is a first portion of an upper half of a CPC tilted by its acceptance angle. The beam-expanding ejector comprising a planar waveguide optically coupled to the output port of the injector. The ejector includes a smooth upper surface, and a reflective lower surface comprising microstructured facets that refract upwardly reflected light into a collimated direction common to the facets.Type: GrantFiled: July 28, 2006Date of Patent: March 12, 2013Assignee: Light Prescriptions Innovators, LLCInventors: Juan Carlos Minano, Pablo Benitez, Julio Cesar Chaves, Waqidi Falicoff, William A. Parkyn
-
Publication number: 20130057140Abstract: An LED lamp is disclosed comprising a remote phosphor patch on or near the interior surface of a translucent sphere. The phosphor is illuminated by an adjacent light box containing blue LEDs, located within the lamp below the transmissive phosphor patch or alternatively above a reflective phosphor patch. The reflective patch can be either fully or partially populated with phosphor. Below the light box is an electronics bay, and below that is an Edison screw-in base.Type: ApplicationFiled: May 19, 2011Publication date: March 7, 2013Applicant: LIGHT PRESCRIPTIONS INNOVATORS, LLCInventors: Waqidi Falicoff, Yupin Sun, Will Shatford
-
Patent number: 8354779Abstract: A heat sink for an LED downlight utilizes tilted fins forming helical air passages that can enhance thermal performance by 30% over conventional fins. To overcome the thermal challenge of installation within the stagnant hot air of insulated ceiling cans, a heat sink has an integral electrostatic air pump on its exterior, to move hot air downwards and drain the stagnant air from the can by establishing a chimney-like circulation up through the heat sink and back down around the outside of the heat sink. The air mover can be powered by a compact high-voltage, low-current power supply similar to those of neon signs. An embodiment of the heat sink is also revealed that is suitable for cooling an LED replacement for standard screw-in or equivalent light bulbs. This device can perform well in variety of orientations (horizontal, vertical, etc.) and fixtures.Type: GrantFiled: January 14, 2010Date of Patent: January 15, 2013Assignee: Light Prescriptions Innovators LLCInventors: Waqidi Falicoff, Yupin Sun, William A. Parkyn