Patents Assigned to Light Prescriptions Innovators, LLC
  • Patent number: 10317606
    Abstract: 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: Grant
    Filed: December 10, 2015
    Date of Patent: June 11, 2019
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Julio C Chaves, Pablo Benitez, Juan Carlos Minano, Waqidi Falicoff
  • Publication number: 20180112227
    Abstract: 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: Application
    Filed: December 15, 2017
    Publication date: April 26, 2018
    Applicant: Light Prescriptions Innovators, LLC
    Inventors: Oliver DROSS, Fernando MUNOZ
  • Patent number: 9885458
    Abstract: 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: Grant
    Filed: January 21, 2011
    Date of Patent: February 6, 2018
    Assignee: Light Prescription Innovators, LLC
    Inventors: Oliver Dross, Fernando Munoz
  • Patent number: 9709242
    Abstract: 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: Grant
    Filed: January 5, 2015
    Date of Patent: July 18, 2017
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Pablo Benitez, Julio C. Chaves, Ruben Mohedano, Aleksandra Cvetkovic, Juan Carlos Minano, Waqidi Falicoff
  • Patent number: 9689546
    Abstract: 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: Grant
    Filed: November 24, 2014
    Date of Patent: June 27, 2017
    Assignees: Light Prescriptions Innovators, LLC, Stanley Electric Co., Ltd.
    Inventors: Ruben Mohedano, Pablo Benitez, Juan Carlos Minano, Masafumi Ohno
  • Patent number: 9574735
    Abstract: 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: Grant
    Filed: September 22, 2011
    Date of Patent: February 21, 2017
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Pablo Benitez, Oliver Dross, Maikel Hernandez, Juan Carlos Minano
  • Patent number: 9360675
    Abstract: 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: Grant
    Filed: November 15, 2012
    Date of Patent: June 7, 2016
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Juan Carlos Miñano, Pablo Benitez
  • Patent number: 9328894
    Abstract: 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: Grant
    Filed: October 22, 2010
    Date of Patent: May 3, 2016
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Waqidi Falicoff, Yupin Sun, Will Shatford, William Parkyn
  • Patent number: 9123849
    Abstract: 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: Grant
    Filed: April 23, 2010
    Date of Patent: September 1, 2015
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Pablo Benitez, Juan Carlos Miñano, Rubén Mohedano, Waqidi Falicoff
  • Patent number: 8939579
    Abstract: 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: Grant
    Filed: January 26, 2012
    Date of Patent: January 27, 2015
    Assignee: Light Prescriptions Innovators, LLC
    Inventor: Ilya Agurok
  • Patent number: 8896198
    Abstract: 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: Grant
    Filed: May 19, 2011
    Date of Patent: November 25, 2014
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Waqidi Falicoff, Yupin Sun, Will Shatford
  • Patent number: 8879253
    Abstract: 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: Grant
    Filed: February 3, 2009
    Date of Patent: November 4, 2014
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Juan Carlos Minano, Pablo Benitez
  • Patent number: 8749898
    Abstract: 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: Grant
    Filed: August 20, 2010
    Date of Patent: June 10, 2014
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Juan Carlos Miñano, Pablo Benítez, Julio C. Chaves, Maikel Hernandez
  • Patent number: 8631787
    Abstract: The present embodiments provide methods and systems to homogenize illumination on a target.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: January 21, 2014
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Pablo Benitez, Juan Carlos Minano, Maikel Hernandez, Jose Blen, Ruben Mohedano, Oliver Dross
  • Publication number: 20130194811
    Abstract: 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: Application
    Filed: September 22, 2011
    Publication date: August 1, 2013
    Applicant: LIGHT PRESCRIPTIONS INNOVATORS, LLC
    Inventors: Pablo Benitez, Oliver Dross, Maikel Hernandez, Juan Carlos Minano
  • Publication number: 20130120849
    Abstract: 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: Application
    Filed: November 15, 2012
    Publication date: May 16, 2013
    Applicant: LIGHT PRESCRIPTIONS INNOVATORS, LLC
    Inventor: LIGHT PRESCRIPTIONS INNOVATORS, LLC
  • Patent number: 8419232
    Abstract: 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: Grant
    Filed: July 28, 2006
    Date of Patent: April 16, 2013
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Juan Carlos Minano, Pablo Benitez, Maikel Hernandez, Jose Blen, Ruben Mohedano, Oliver Dross
  • Patent number: 8393777
    Abstract: 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: Grant
    Filed: July 28, 2006
    Date of Patent: March 12, 2013
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Juan Carlos Minano, Pablo Benitez, Julio Cesar Chaves, Waqidi Falicoff, William A. Parkyn
  • Publication number: 20130057140
    Abstract: 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: Application
    Filed: May 19, 2011
    Publication date: March 7, 2013
    Applicant: LIGHT PRESCRIPTIONS INNOVATORS, LLC
    Inventors: Waqidi Falicoff, Yupin Sun, Will Shatford
  • Patent number: 8354779
    Abstract: 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: Grant
    Filed: January 14, 2010
    Date of Patent: January 15, 2013
    Assignee: Light Prescriptions Innovators LLC
    Inventors: Waqidi Falicoff, Yupin Sun, William A. Parkyn