Daylight Lighting Patents (Class 362/1)
  • Patent number: 10321534
    Abstract: A method of color error correction for a segmented LED array is disclosed. The method includes calculating a target luminance for LED segments in a segmented LED array based on an initial luminance pattern, determining a luminance ratio based on the target luminance, the luminance ratio defined as a ratio of a primary luminance value of the primary LED segment to a secondary luminance value of the at least one adjacent LED segment, and comparing the luminance ratio to a predefined threshold ratio. If the luminance ratio is greater than or equal to the predefined ratio, then the secondary luminance value of the at least one adjacent LED segment is maintained. If the luminance ratio is less than the predefined ratio, then the secondary luminance value of the at least one adjacent LED segment is increased.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: June 11, 2019
    Assignee: LUMILEDS LLC
    Inventors: Nicola Bettina Pfeffer, Arjen Gerben Van Der Sijde, Brendan Moran
  • Patent number: 10237951
    Abstract: A luminaire having an electronically adjustable light beam distribution to provide upward illumination creating color gradients on a ceiling. The color gradients may be in patterns that mimic color gradients of a sky, including, for example, color gradients that mimic sunrise, sunset, sun at different times of day, a rainy day, clouds, the sun, moon, etc. The color gradients may change over time and/or may include one or more objects, e.g. clouds, the sun, moon, etc. and/or may move and/or change over time to create a dynamic sky on the ceiling. Multiple luminaires may be controlled by a system controller to produce coordinated color gradients across the light distribution areas of the multiple luminaires.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: March 19, 2019
    Assignee: OSRAM SYLVANIA Inc.
    Inventors: Michael A. Quilici, Holger Sacher, Seung Cheol Ryu
  • Patent number: 10198976
    Abstract: In a viewing object display set, it is possible to prevent a reduction in a sense of reality when a viewing object is seen. Specifically, the display set for viewing the viewing object includes the viewing object that is attached to a display surface and an object for visual effect that is provided on a viewing position side with respect to the viewing object and shields at least a portion of the viewing object. The object for visual effect is arranged so as to shield the boundary between the viewing object and the display surface.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: February 5, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yumi Yanai, Shinichi Miyazaki, Yuji Akiyama
  • Patent number: 10172210
    Abstract: A method of generating drive conditions for light sources to maintain a desired color of a light emitted by the light sources, as perceived by a human observer, over a change in a reference luminance, includes determining a corrected color that produces perception of the desired color, by the human observer, in the presence of the reference luminance; and determining light source drive conditions to produce the corrected color. A light fixture includes multiple illumination panels and control electronics. Some of the illumination panels emit a reference luminance; others emit light of an accent color different from the reference luminance. The control electronics modify an intensity level of the reference luminance, and compensate drive conditions supplied to LED chips that emit the accent color, to compensate the accent color for effects of modifying the intensity level, on human perception of the accent color.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: January 1, 2019
    Assignee: ABL IP Holding LLC
    Inventor: Christopher D. Slaughter
  • Patent number: 10028448
    Abstract: A method of stimulating plant growth in a controlled environment that includes providing a lighting assembly having a network of lighting elements such as light emitting diodes (LEDs) that provide light at a color tailored for an individual plant. The lighting assembly is positioned adjacent a plant such that the light produced is received by the plant. The lighting assembly additionally has a control assembly that includes driving circuitry that modulates the lighting elements to controllably provide predetermined periods of light and dark to stimulate continuous growth of the plant.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: July 24, 2018
    Assignee: Once Innovations, Inc.
    Inventors: Zdenko Grajcar, Kevin Payne
  • Patent number: 9863592
    Abstract: A lighting unit is provided that has a housing with a lighting portion and a solar panel portion. Solar panels are mounted on the solar panel portion and the energy gathered by the solar panels is stored in a rechargeable battery. The lighting portion has a conical shaped wall that meets with a circular shaped wall. Each of the conical shaped wall and circular shaped wall defines light recesses defined by light recess walls, and an LED is disposed in each recess. The LEDs are powered by the rechargeable battery and are capable of illuminating a flag whether or not there is a breeze or wind. The circular shaped wall defines a wall opening and the solar panel portion has pole extension that is fitted in the wall opening.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: January 9, 2018
    Inventor: Gary L. Toner
  • Patent number: 9690273
    Abstract: A device and method for controlling lighting based on an illuminance model. The method for controlling lighting based on an illuminance model includes modeling actual illuminance measured by one or more illuminance measurement devices; generating a lighting profile based on the illuminance model; and controlling one or more lighting devices for each lighting scene according to the generated lighting profile.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: June 27, 2017
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yoon Mee Doh, Jong Arm Jun, Tae Wook Heo
  • Patent number: 9663024
    Abstract: A method is disclosed for controlling a headlight in a motor vehicle. The method includes providing a headlight configured to emit a light distribution in a selectively controlled manner, and controlling the headlight to generate a dynamic wave effect in at least one sub-region in front of the vehicle within the illuminated light distribution.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: May 30, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Philipp Roeckl, Thomas Feid, Frank Langkabel, Ingolf Schneider
  • Patent number: 9410669
    Abstract: A solar simulator including an array of lamp modules, wherein each lamp module of the array includes a lamp configured to generate light, a homogenizer having an input end and an output end, a beam divergence lens positioned to focus the light onto the input end of the homogenizer, and an imaging lens positioned to receive the light from the output end of the homogenizer and image the light onto a target plane.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: August 9, 2016
    Assignee: The Boeing Company
    Inventors: Douglas R. Jungwirth, Emilio Quezada
  • Patent number: 9335025
    Abstract: The invention relates to a daylight illumination apparatus. A daylight collector (3) collects daylight (4), which is guided to an illumination location to be illuminated along an optical path by a light guide (5), wherein the daylight is absorbed by the light guide. A photoluminescent material (6, 8) is arranged within the optical path and emits photoluminescent light that compensates for the absorption of the daylight by the light guide. Absorption losses of the daylight can therefore effectively be compensated, without necessarily needing, for example, an active compensation light source. This allows providing compensated daylight illumination in a technically relatively simple way.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: May 10, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Jörg Meyer, Martinus P. J. Peeters, René T. Wegh, Ramon P. Van Gorkom, Rifat A. M. Hikmet
  • Patent number: 9249969
    Abstract: A clothing illumination device is switchable between illumination with visible light only and illumination with visible light mixed with ultraviolet light. The clothing illumination device also has an LED light source and an IC tag reader. A clothing illumination system has a first and a second clothing illumination device which are each switchable between illumination with visible light only and illumination with visible light mixed with ultraviolet light, and which operate in a fashion coordinated with each other to perform the switching.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: February 2, 2016
    Assignee: Rohm Co., Ltd.
    Inventors: Katsuhiro Arai, Masahide Tanaka
  • Patent number: 9200761
    Abstract: The lighting device including a reflector; a heat radiating body having a wall disposed around the reflective part of the reflector; a light emitter including a substrate disposed on a bottom surface of the wall of the heat radiating body and a plurality of light emitting devices disposed on the substrate; and a cover including a reflective surface disposed under the bottom surface and reflecting a first light from the light emitting devices to the reflective part of the reflector, and having an opening emitting a second light from the reflective part of the reflector to outside.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: December 1, 2015
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sungho Hong, Seok Jin Kang
  • Patent number: 9085931
    Abstract: The invention describes a system for controlling a shading device with a plurality of controllable shading elements. To provide a system for controlling a shading device, which reduces direct sunlight transmission and enhances thermal comfort and lighting conditions, the system comprises at least one detector unit for providing an image signal of a shading area and a control unit (5) being configured to receive said image signal, determine from said signal, whether a characteristic pattern is present in said shading area and in case said characteristic pattern is determined, control said shading elements to reduce said characteristic pattern.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: July 21, 2015
    Assignee: Koninklijke Philips N.V.
    Inventor: Bernd Ackermann
  • Publication number: 20150124426
    Abstract: Various apparatus and associated methods involve a light source that provides light at wavelengths that substantially correlate to local maxima in the spectral sensitivity of a diurnal avian. In an illustrative example, the light source may output light primarily in wavelength bands that are not substantially absorbed by colored oil droplets and/or visual pigment in at least one type of cone in the eye of a diurnal avian. In some embodiments, the light source may include a light-emitting diode (LED) light source. Exemplary light sources may output spectral components to illuminate diurnal avians with local maxima of intensity at wavelengths that substantially correspond to local maxima in a spectral sensitivity visual response characteristic of the diurnal avians.
    Type: Application
    Filed: October 13, 2014
    Publication date: May 7, 2015
    Inventor: Zdenko Grajcar
  • Publication number: 20150062859
    Abstract: A solar powered lighting system includes a solar module adapted to receive solar energy and transform received solar energy into electrical energy and a lighting module. The lighting module is electrically coupled to the solar module and is configurable to emit light using electrical energy generated by the solar module only while the solar module receives solar energy. The solar module and the lighting module are electrically couplable such that light emitted from the lighting module mimics a characteristic of sunlight from which the solar energy is received.
    Type: Application
    Filed: March 12, 2013
    Publication date: March 5, 2015
    Inventor: Brian Kimberley
  • Patent number: 8960930
    Abstract: A solar simulator including a light source and a light conduit array is provided. The light source is used for emitting a beam of ray radiation. The light conduit array includes a plurality of light conduits closely adjacent to one another. Each of the light conduits has an inner reflecting surface used for reflecting the ray radiation, a light input side, and a light output side opposite to the light input side. The ray radiation enters the light conduits through the light input side and emitting from the light output side.
    Type: Grant
    Filed: September 24, 2011
    Date of Patent: February 24, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Si-Xian Li, Teng-Chun Wu, Hung-Sen Wu
  • Patent number: 8919987
    Abstract: An LED display unit includes a light guide, a diffusion layer, an LED module, and a solar panel. The light guide includes a first light incident surface and a light emitting surface connected to the first light incident surface. The diffusion layer includes a side surface and a second light incident surface connected to the side surface. The second light incident surface is adjacent to the light emitting surface. The LED module is adjacent to the first light incident surface. The solar panel is adjacent to the side surface and electrically connected with the LED module.
    Type: Grant
    Filed: November 25, 2012
    Date of Patent: December 30, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chih-Chen Lai
  • Patent number: 8905586
    Abstract: A natural lighting apparatus using sunlight is provided. The natural lighting apparatus includes a second light condensing device provided in a focal region of a first light condensing device to convert sunlight condensed in the focal region by the first light condensing device into straight parallel light rays through the second condensing device to provide sunlight having a high luminous flux to an indoor space. This natural lighting apparatus may be used together with an artificial illumination apparatus in a hybrid illumination system.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: December 9, 2014
    Inventors: Se Dae O, Ju Yoon Lee, Kyoo Dong Song
  • Publication number: 20140307411
    Abstract: A solar simulator including an array of lamp modules, wherein each lamp module of the array includes a lamp configured to generate light, a homogenizer having an input end and an output end, a beam divergence lens positioned to focus the light onto the input end of the homogenizer, and an imaging lens positioned to receive the light from the output end of the homogenizer and image the light onto a target plane.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 16, 2014
    Applicant: The Boeing Company
    Inventors: Douglas R. Jungwirth, Emilio Quezada
  • Patent number: 8845149
    Abstract: A plant illumination apparatus including a driving unit having a central axis, a first slide base, a second slide base, a light source, and a retractable arm having a retraction-control terminal and light-disposing terminal is provided. The first and second slide bases are disposed on the driving unit. The drive unit simultaneously drives the first and second slide bases to move along the central axis in opposite directions. The retraction-control terminal has a first end and a second end respectively connected to the first and second slide bases and moving therewith. When the first and second ends approach each other, the retractable arm extends so the light-disposing terminal moves away from the retraction-control terminal. When the first and second ends leave each other, the retractable arm retracts so the light-disposing terminal moves toward the retraction-control terminal. The light source is disposed on the light-disposing terminal to illuminate a plant.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 30, 2014
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Min-Chung Cheng, Min-Lun Wu, Che-Wei Chang
  • Patent number: 8814374
    Abstract: A system for combining exterior light with artificial lighting, comprising a light shielding arrangement (2) for shielding exterior light from a space (5) and at least one light source (6) arranged to emit artificial light that is directed toward the exterior side of the light shielding arrangement (2), which light source (6) is controllable in response to current exterior lighting conditions. The system further comprises a controller (8) connected to said light source (6), which is arranged to control light emission of the light source (6) in response to a current position of the light shielding arrangement, so as to emulate an effect of exterior light escaping through the light shielding arrangement. The artificial light can thus be controlled (manually or automatically) to compensate for lack of sufficient exterior light, and the controller ensures that the artificial light is emitted in such a way as to be perceived as exterior light.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: August 26, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Lucas Leo Desiree Van Der Poel, Dorien Cato Van Der Lans
  • Publication number: 20140160719
    Abstract: A lighting system for providing a daylight appearance and a luminaire are provided. The lighting system comprises a plurality of light emitters and a plurality of optical elements. Said plurality of light emitters emit a wide light beam. Each optical element of at least a subset of the plurality of optical elements is related to a light emitter of the plurality of light emitters, thereby forming a pair.
    Type: Application
    Filed: July 5, 2012
    Publication date: June 12, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Jacobus Dingenis Machiel Van Boven, Berent Willem Meerbeek, Gabriel-Eugen Onac, Evert Jan Van Loenen
  • Patent number: 8746942
    Abstract: A tubular skylight, comprising a tubular body (2) provided with an inner reflecting surface (3), a light collector (4) mounted to a first end of the tubular body (2) and a light diffuser (6) mounted to a second end of said tubular body (2). The skylight further comprises a source of artificial light (9) external to the tubular body (2) to enable it not to interfere with the natural light, and mounted in the vicinity of the diffuser (6). This artificial-light source (9) is preferably defined by a plurality of LEDs positioned around the diffuser (6) itself.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: June 10, 2014
    Inventor: Gennaro Bracale
  • Publication number: 20140126174
    Abstract: Various apparatus and associated methods involve a light source that provides light at wavelengths that substantially correlate to local maxima in the spectral sensitivity of a diurnal avian. In an illustrative example, the light source may output light primarily in wavelength bands that are not substantially absorbed by colored oil droplets and/or visual pigment in at least one type of cone in the eye of a diurnal avian. In some embodiments, the light source may include a light-emitting diode (LED) light source. Exemplary light sources may output spectral components to illuminate diurnal avians with local maxima of intensity at wavelengths that substantially correspond to local maxima in a spectral sensitivity visual response characteristic of the diurnal avians.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 8, 2014
    Applicant: Once Innovations, Inc.
    Inventor: Zdenko Grajcar
  • Patent number: 8714800
    Abstract: The present invention provides a light source device for emitting concentrated light, which is prepared by concentrating light emitted from a light source, including: the light source; a reflective box in which the light source is provided; a plurality of light guides having a circular column shape or a polygonal column shape and having two end surfaces being different in area; and light separating means, the reflective box having a plurality of openings, each opening being provided with one of the light guides in such a way that the end surface smaller in area faces the light source, and each light separating means being provided at a position between the adjacent ones of the openings. With this, a small-sized light source device for emitting light with high output and high directivity, and a simulated solar light irradiation device including the same are provided.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: May 6, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akiko Kobayashi, Kohji Minami, Hiroyuki Tadano, Norito Fujihara, Tamon Iden, Atsushi Nakamura
  • Publication number: 20140070836
    Abstract: An apparatus for simulating sunlight includes a light source for generating light rays, a first reflector having a curved surface that is disposed to receive and reflect the light rays from the light source to form first reflected parallel light rays that travel in a first direction, and a second reflector disposed to face the first reflector and disposed to receive and reflect the first reflected parallel light rays from the first reflector to form second reflected parallel light rays that travel in a second direction. The first and second directions are mutually orthogonal.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 13, 2014
    Applicant: ALL REAL TECHNOLOGY CO., LTD.
    Inventor: Jon-Lian KUO
  • Patent number: 8668346
    Abstract: A simulated sunlight generating device for generating a simulated sunlight required for evaluating performance of solar cells includes a plurality of driving units, a plurality of light-emitting units, and a plurality of adjusting units. The driving units drive the light-emitting units to emit light. The adjusting units enable the light of the light-emitting units to not only propagate along the same light route but also be added up and combined to form the simulated sunlight of an intended wavelength with ease of installation, ease of maintenance, low costs, high flexibility, and high efficiency.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: March 11, 2014
    Assignee: Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan
    Inventors: Chih-Hung Wu, Min-De Yang, Chan-Wei Yeh
  • Patent number: 8646925
    Abstract: A solar simulator includes a light source, an optical reflection element positioned behind the light source to reflect light emitted from the light source in a form of pseudo parallel light, a low-angle light-diffusion optical element for diffusing the reflected light from the optical reflection element at a low diffusion angle, and a parallel light conversion optical element including a number of air holes arranged in parallel rows and provided with faculties for transmitting incident light parallel to the axis of the air holes to absorb or attenuate nonparallel incident light. The parallel light conversion optical element converts the incident light from the low-angle light-diffusion optical element to parallel light and emits the converted parallel light.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: February 11, 2014
    Assignees: Yamashita Denso Corporation, Holonix International Co., Ltd.
    Inventors: Nobuhiko Kubo, Kuniaki Takahashi
  • Patent number: 8601757
    Abstract: Some embodiments provide a fenestration apparatus including at least one glazing pane capable of being installed in an opening of a building envelope and a tessellated structure disposed adjacent to the at least one glazing pane. The tessellated structure can include at least one partition having a first face and a second face. The at least one partition can define a plurality of spatially separated cells within a substantially contiguous region of the opening. Each of the plurality of spatially separated cells can have a cell width and a cell depth. Each of the plurality of spatially separated cells can be at least partially surrounded by the first face of the at least one partition, the second face of the at least one partition, or a combination of the first face and the second face of the at least one partition.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: December 10, 2013
    Assignee: Solatube International, Inc.
    Inventors: Paul August Jaster, Keith Robert Kopitzke, David James Wilson, David Windsor Rillie
  • Patent number: 8585231
    Abstract: A grave marker assembly including a support arm having proximal and distal ends, a flagpole mounting loop fixedly attached to or formed wholly with the support arm's proximal end, the flagpole mounting loop being adapted for, upon an engagement of a flagpole with the flagpole mounting loop, extending the support arm from the flagpole; a solar cell fixedly attached to the support arm; an electric light emitter fixedly attached to the support arm; a rechargeable electric storage battery fixedly attached to the support arm; and a network of electrical conductors operatively interconnecting the solar cell, the electric light emitter, and the rechargeable electric storage battery for, upon exposure of the solar cell to sunlight, charging the rechargeable electric storage battery, and upon a termination of the exposure to sunlight, actuating the electric light emitter.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: November 19, 2013
    Inventor: Jesse C. May
  • Patent number: 8579446
    Abstract: The invention relates to a variable-spectrum solar simulator for characterising photovoltaic systems. The simulator can be used to obtain a spectrum adjusted to the solar spectrum, both for a standard spectrum or a real spectrum adjusted to local irradiation conditions. The simulator also allows the spatial-angular characteristics of the sun to be reproduced.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: November 12, 2013
    Assignee: Abengoa Solar Technologies, S.A.
    Inventor: Juan Carlos Martinez Antón
  • Publication number: 20130294045
    Abstract: A solar simulator with at least one lamp module, where the luminous module contains multiple light generating units is disclosed. Each of the light generating units contain at least one semiconductor light source, which generate light in a plurality of separately controllable wavelength ranges. Disposed downstream from the light generating units is a light-concentrating primary optical unit. A light-homogenizing secondary optical unit is likewise disposed downstream of the light generating units. And an imaging tertiary optical unit is disposed downstream of the secondary optical unit. A method for operating the solar simulator and the light generating units in such a way that the solar simulator generates light radiation that alters over time is also disclosed.
    Type: Application
    Filed: January 5, 2012
    Publication date: November 7, 2013
    Applicant: OSRAM GMBH
    Inventor: Nico Morgenbrod
  • Publication number: 20130286628
    Abstract: A shading device for a greenhouse includes a shading element and at least one lighting element, wherein the shading element comprises an outer side and an inner side. The shading element is formed from interwoven electrically conductive first thread elements and electrically insulating second thread elements. The first and/or second thread elements each may be adapted for reflecting an ambient light. The lighting element(s) may be arranged at the inner side of the shading element and connected with the first thread elements, and the lighting element(s) may be driven by an electrical current, conducted by the first thread elements, resulting in the emission of an artificial light, which may illuminate a plant growing in the greenhouse.
    Type: Application
    Filed: June 25, 2013
    Publication date: October 31, 2013
    Inventor: Joseph Hendrik Anna Maria JACOBS
  • Patent number: 8568009
    Abstract: A compact high-brightness LED aquarium light fixture is described for use in illuminating aquarium tanks artificial light. (18) The LED aquarium light uses a densely-packed array of high-brightness light emitting diodes (LEDs) that are not individually packaged, where the array behaves similarly to a point source of light. The LED chips are distributed laterally over an area, where the LED chips have light emitting surfaces for emitting light in directions transverse to said area, wherein the dimensions of the area do not exceed 25 mm. Adjacent chips of the array are preferably separated by less than about 0.2 mm. The extended point source LED array, with its lens and associated reflector, result in a concentrated light source that attractively illuminates the contents of the aquarium, and creates a desirable shimmering effect within the aquarium. A clamp-on, flexible gooseneck mounting arrangement allows for use with aquarium tanks of various sizes.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: October 29, 2013
    Assignee: Dicon Fiberoptics Inc.
    Inventors: Brian I-Yuan Chiang, Junying Jonathan Lu, Ho-Shang Lee
  • Publication number: 20130279146
    Abstract: A light guide member of the pseudo-sunlight irradiation apparatus is formed of eight light guide plates WG1?-WG8? arrayed in one direction. A light diffusing part formed of a plurality of dot-like protrusions 701, 702 is formed on a surface opposite to an irradiating surface of each of the light guide plates WG1?-WG8?. A dot diameter of the dot-like protrusions 701 of the light guide plates WG1?, WG8? positioned at ends in the one direction orthogonal to the light guide direction of the light guide plates WG1?-WG8? is made larger than a dot diameter of the dot-like protrusions 702 of the light guide plates WG2?-WG7? positioned at central portions other than the ends in the one direction.
    Type: Application
    Filed: March 16, 2011
    Publication date: October 24, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Atsushi Nakamura
  • Patent number: 8545078
    Abstract: A solar lighting apparatus uses optical fibers to transmit solar light for illumination. The apparatus includes a support frame, optical fibers, a hybrid solar light diffuser and a reflective sheet. The optical fibers are fastened to the support frame and are spaced apart from each other at regular intervals. The hybrid solar light diffuser is coupled to a lower portion of the support frame and includes a diffusion plate and diffusion lenses which are provided on the diffusion plate at positions corresponding to the respective optical fibers. Each diffusion lens has a width increasing from a top thereof to a bottom. An incident depression is formed in the upper end of each diffusion lens. A reflective surface is formed on the circumferential outer surface of each diffusion lens to diffuse and reflect solar light. The reflective sheet is applied to the lower surface of the support frame.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: October 1, 2013
    Assignee: ABM Greentech Co., Ltd.
    Inventor: Byung Chul Kim
  • Patent number: 8529092
    Abstract: An assembled type lamp wall comprises a base, at least one fastening holder and at least one lamp panel, wherein the fastening holder has a fitting portion provided for joining the base and a bottom portion that is stably in contact with ground. The fitting portion of the fastening holder is disposed with at least one screw through hole. The base has a plurality of screw holes aligning the at least one screw through hole and respectively and circularly disposed at a location of joining the fastening holder so that the several lamp panels can be horizontally extended and arranged on the base, and other screw holes align the screw through holes on the fastening holder, and a purpose of easily regulating the lamp panels 30 can be easily achieved by means of screwing the screw into the screw hole.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: September 10, 2013
    Inventor: Ming-Tsun Lin
  • Publication number: 20130114237
    Abstract: A compact solar simulator includes a target surface for a solar module, an enclosure behind the target surface, and at least one source fixture including a lamp in the enclosure spaced from the target surface. Diffusing surfaces about the source fixture diffuse radiation emitted by the lamp. Specular reflectors are positioned to steer the diffused radiation to the target surface and are oriented to create a uniform intensity distribution across the target surface. Moreover, the surface area of any desired filters is reduced and any longitudinal non-uniform intensity distribution of the lamp is corrected.
    Type: Application
    Filed: November 7, 2011
    Publication date: May 9, 2013
    Inventor: Harvey B. Serreze
  • Publication number: 20130114238
    Abstract: A white color light source of an organic light emitting diode is provided and is suitable for irradiating on plants. The white color light source includes a first color light and a second color light. A peak in the frequency spectrum of the first color light is within a first wavelength range. A peak in the frequency spectrum of the second color light is within a second wavelength range. The white color light source is at least formed by mixing the first color light and the second color light, wherein an intensity of a frequency spectrum of a wavelength range from 520 nm to 580 nm is substantially equal to or less than 20% of a total intensity of a frequency spectrum of the white color light source.
    Type: Application
    Filed: May 22, 2012
    Publication date: May 9, 2013
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Ting-Yi Cho, Po-Hsuan Chiang, Wen-Huei Chen
  • Patent number: 8434881
    Abstract: A solar cell simulator that is cylindrically symmetrical to test photovoltaic devices that are flexible. A particular embodiment would be made from plexiglass or similar acrylic material. The present invention produces a spectrum that simulates the spectral distribution of solar light that we observe on the Earth's surface. The simulator would be comprised of a tubular pulsed light source, a pulsed power supply, a tubular light spectrum filter, an IV electrical measurement station, a cylinder-shaped module holder to place the flexible large-area module during the measurement. All cylinders share the same central axis. This maintains radial uniformity of all light intensity and can be used for electrical measurements (IV curves under illumination) of flexible large-area PV modules.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: May 7, 2013
    Assignee: Xunlight Corporation
    Inventors: Xinmin Cao, Aarohi Vijh, Paul E. Sims, Steven Marks, Bradley S. Mohring
  • Publication number: 20130063174
    Abstract: A solar simulator in which locational unevenness of irradiance is reduced by using a small and simple optical system, having an array of light emitters 2 with a plurality of point light emitters planarly arranged in a given range 24, an effective irradiated region 4 spaced apart from a surface having the point light emitters 26 arranged thereon, and a reflection mirror 6 disposed to surround the given range 24 of the array. Preferably, a distance L between the point light emitter positioned at the outermost portion of given range 24 of the array of light emitters 2 and a light-reflecting surface of the reflection mirror is half of a pitch a of the array of the point light emitters and, more preferably, the distance L is larger than half of a width b of each point light emitter, and smaller than half of the pitch a.
    Type: Application
    Filed: February 14, 2011
    Publication date: March 14, 2013
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Masanori Ooto, Ryouichi Higashi, Tetsuya Saito
  • Patent number: 8376600
    Abstract: A lighting device includes a substantially cylindrical tube defining an interior and an exterior, and a longitudinal axis extending between a first end and a second end. The first end of the tube defines a substantially cylindrical opening disposed in a plane at a first angle that is substantially perpendicular to the longitudinal axis, and the second end of the tube defines a substantially elliptical opening disposed in a plane at a second angle that is substantially non-perpendicular to the longitudinal axis. A reflective surface is provided on the interior of the tube, and a substantially cylindrical flashing is provided about the exterior of the tube. A substantially transparent dome is coupled to the tube proximate the first end, and a diffuser is coupled to the tube proximate the second end.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: February 19, 2013
    Assignee: Orion Energy Systems, Inc.
    Inventors: Anthony J. Bartol, Neal R. Verfuerth, Jun Wang, Brandon J. King
  • Patent number: 8358097
    Abstract: A system for controlling a motorized track light system constrained to travel along a track has a control unit coupled to a motor that causes the track light system to move along the track, a plurality of stop sensors strategically disposed along the track, a sensor activation device located on the track light system, the sensor activation device positioned to interface with the stop sensors, and a light sensor for detecting ambient light of a preset level. The system detects a preset level of ambient light, initiating power to the motor of the track light system, moving the lights along the track until the activation device interfaces with a first of the plurality of stop sensors, stopping movement of the track light system along the track for a preset period of time, and at the end of the preset time period, the electrical power is restored to the motor moving the track light assembly along the track to the next of the plurality of stop sensors.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: January 22, 2013
    Inventor: Brent A. Cartwright
  • Patent number: 8350991
    Abstract: Apparatus and methods for harnessing external light to illuminate a display screen of an electronic device are provided. The display screen may be illuminated using a light harness, a reflector, a translucent surface, or any combination thereof. The light harness may be cylindrical or hexahedral. The light harness may be coupled to an external light input or a collector. The reflector may be repositioned toward or away from the display screen to reflect external light toward the display screen. The translucent surface may allow external light to pass through it to illuminate the display screen. The translucent surface may protect the rear face of the display screen, or the rear face of the display screen may itself be translucent.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: January 8, 2013
    Assignee: Apple Inc.
    Inventor: Peter H. Mahowald
  • Publication number: 20130003341
    Abstract: A solar simulator includes a light source, an optical reflection element positioned behind the light source to reflect light emitted from the light source in a form of pseudo parallel light, a low-angle light-diffusion optical element for diffusing the reflected light from the optical reflection element at a low diffusion angle, and a parallel light conversion optical element including a number of air holes arranged in parallel rows and provided with faculties for transmitting incident light parallel to the axis of the air holes to absorb or attenuate nonparallel incident light. The parallel light conversion optical element converts the incident light from the low-angle light-diffusion optical element to parallel light and emits the converted parallel light.
    Type: Application
    Filed: March 14, 2011
    Publication date: January 3, 2013
    Applicants: Holonix International Co., Ltd., Yamashita Denso Corporation
    Inventors: Nobuhiko Kubo, Kuniaki Takahashi
  • Publication number: 20120320560
    Abstract: A system for combining exterior light with artificial lighting, comprising a light shielding arrangement (2) for shielding exterior light from a space (5) and at least one light source (6) arranged to emit artificial light that is directed toward the exterior side of the light shielding arrangement (2), which light source (6) is controllable in response to current exterior lighting conditions. The system further comprises a controller (8) connected to said light source (6), which is arranged to control light emission of the light source (6) in response to a current position of the light shielding arrangement, so as to emulate an effect of exterior light escaping through the light shielding arrangement. The artificial light can thus be controlled (manually or automatically) to compensate for lack of sufficient exterior light, and the controller ensures that the artificial light is emitted in such a way as to be perceived as exterior light.
    Type: Application
    Filed: February 25, 2011
    Publication date: December 20, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Lucas Leo Desiree Van Der Poel, Dorien Cato Van Der Lans
  • Patent number: 8313224
    Abstract: A light emitting fixture carried by a ceiling, wherein the fixture includes an electrical light source which emits generated light in response to an electrical signal and an optical fiber with light emitting and light collecting ends. The optical fiber emits collected light from the light emitting end in response to receiving incident light at the light receiving end.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: November 20, 2012
    Inventor: Calvin W. Moyer
  • Publication number: 20120287600
    Abstract: A simulated solar light irradiation device (30) includes (i) a light source section including a first light source (1) and a second light source (2), (ii) light selection means (7) for selecting and emitting (a) light, having shorter-wavelengths than a predetermined boundary wavelength, in first light irradiated by the first light source (1) and (b) light, having longer-wavelengths than the predetermined boundary wavelength, in second light irradiated by the second light source (2), and (iii) control means (5, 6) for controlling a directivity of the first light or a directivity of the second light so that the first light or the second light enters the light selection means (7) at a predetermined incident angle. In this way, it is possible to irradiate designed simulated solar light without increasing a size of the device.
    Type: Application
    Filed: July 25, 2010
    Publication date: November 15, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tamon Iden, Kohji Minami
  • Publication number: 20120223733
    Abstract: Techniques for solar cell electrical characterization are provided. In one aspect, a solar testing device is provided. The device includes a solar simulator; and a continuous neutral density filter in front of the solar simulator having regions of varying light attenuation levels ranging from transparent to opaque, the continuous neutral density filter having an area sufficiently large to filter all light generated by the solar simulator, and wherein a position of the continuous neutral density filter relative to the solar simulator is variable so as to control a light intensity produced by the device. A solar cell electrical characterization system and a method for performing a solar cell electrical characterization are also provided.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 6, 2012
    Applicant: International Business Machines Corporation
    Inventors: Oki Gunawan, Bao Lei
  • Publication number: 20120134131
    Abstract: A light radiation device that radiates light with a desired spectrum and controlled directivity is provided. A light radiation device (100) according to the present invention includes: a light source (101); an optical waveguide (107); and a spectrum modulating member (104), the optical waveguide (107) guiding incident light from the light source (101) thereinto through a plane of incidence, causing the light to be reflected by sides of the optical waveguide (107), and emitting directivity-controlled light through a plane of emission, the spectrum modulating member (104) attenuating a spectrum in a particular band of wavelengths among the directivity-controlled light, the optical waveguide (107) becoming narrower from the plane of emission toward the plane of incidence, the spectrum modulating member (104) being provided toward the plane of emission of the optical waveguide (107).
    Type: Application
    Filed: January 28, 2010
    Publication date: May 31, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Atsushi Nakamura, Kohji Minami