Including Selected Wavelength Modifier (e.g., Filter) Patents (Class 362/2)
  • Patent number: 10386033
    Abstract: A lighting apparatus includes at least one primary light source for emitting primary light, at least one phosphor body arranged at a distance from the primary light source, for converting the wavelength of primary light into secondary light, and at least one at least partly dichroic mirror, which at least partly deflects primary light radiated thereon onto at least one phosphor body and which passes secondary light radiated by the phosphor body. Used light radiated by the lighting apparatus contains the secondary light and primary light radiated by at least one primary light source, and the dichroic mirror includes at least one first and second mirror regions, in such a way that the first mirror region deflects primary light onto at least one phosphor body and passes secondary light incident from the phosphor body, and that the second mirror region deflects primary light in a manner circumventing the phosphor body.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: August 20, 2019
    Assignee: OSRAM GMBH
    Inventor: Stefan Hadrath
  • Patent number: 10325127
    Abstract: A data reading system and method, such as for reading optical codes on objects being passed through a read zone, including one or more imagers and at least one illumination module having a reflector housing that includes a baffle structure with a first inner surface and a second inner surface, and a light source disposed at the rear end of the reflector housing and operative to generate illumination out through the baffle structure along an outgoing illumination path, wherein at least one of the inner surfaces of the baffle structure comprises a dielectric material operative to exhibit high reflectivity to light rays from the light source impinging at a high incidence angle and to exhibit low reflectivity to light rays from the light source impinging at a low incidence angle, thereby minimizing stray light impinging on the eyes of the operator while maximizing on-target illumination.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: June 18, 2019
    Assignee: DATALOGIC USA, INC.
    Inventors: Alexander M. McQueen, Michael J. Ahten
  • Patent number: 10247874
    Abstract: A glass space partitioning system that is capable of supporting heavy and/or operable glass panels in throughout a range of partially-integrated or fully-integrated configurations, and which integrates an LED-strip light assembly for edge-lighting the glass panels. The system generally includes a framing member comprising a U-shaped horizontal profile with side walls, an intermediate profile attached to the U-shaped profile, a glass pane seated edgewise between a side wall of the U-shaped profile and the intermediate profile, a flexible LED strip cut to length and snap-fit in a vertical orientation against the side wall of the U-shaped profile and adjacent the glass pane for edge lighting, and a cover profile attached to the intermediate profile securing the foregoing.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: April 2, 2019
    Inventor: Florian Eyme
  • Patent number: 10161596
    Abstract: Chromatic components are presented which alleviate the usage in various applications in that this chromatic component is, according to a first aspect of the present application, made-up of a mirroring surface and a diffusing layer in front of the mirroring surface, which preferentially scatters short-wavelength components of impinging light with respect to long-wavelength components of the impinging light, and in that according to another aspect, the chromatic component is made up of a stratified-glass panel which comprises two less sheets sandwiching an adhesive transparent polymeric film wherein the adhesive transparent polymeric film forms a diffusing layer which preferentially scatters short-wavelength components of light passing the stratified-glass panel with respect to long-wavelength components of this light with respect to long-wavelength components of the same.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: December 25, 2018
    Assignee: CoeLux S.r.l.
    Inventor: Paolo Di Trapani
  • Patent number: 10120119
    Abstract: A planar illumination apparatus according to an embodiment includes a light source and a light guide plate. The light source includes a light emitting diode and a wavelength conversion material that is excited by light emitted from the light emitting diode so as to emit light, and emits white light. The light guide plate includes an incident end surface on which the light source is disposed, and an emission surface that emits light incident from the incident end surface. The light guide plate is provided with a light scattering unit on at least one of the emission surface and a rear surface opposed to the emission surface. The light scattering unit mainly scatters light emitted from the light emitting diode than light emitted from the wavelength conversion material.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 6, 2018
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Kaoru Onda, Kenta Takakusaki
  • Patent number: 10111392
    Abstract: A system and method for providing light to a plant with a life cycle that includes a seedling growth period, a vegetative growth period, and a flowering growth period. Illumination to the plant is provided with an array of LEDs that contains red LEDs, blue LEDs and white LEDs. During the seedling growth period, no red LEDs are illuminated. Blue and white LEDs are lit, wherein the blue light is more intense than the white. During the vegetative growth period, white and blue LEDs are lit, wherein the white light is more intense than the white. During the flowering growth period, red and white LEDs are lit, wherein the red light is more intense than the white light. The change in coloring and intensity has beneficial effects during each growth period and at the same time inhibits insects.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: October 30, 2018
    Assignee: LED Living Technology
    Inventors: Oliver Szeto, Gary Sigman, Kevin High
  • Patent number: 10085385
    Abstract: A plant cultivation apparatus of the present disclosure includes a first light source unit configured to include a first laser diode radiating a first light beam, and a first scanning mechanism scanning the first light beam and forming a first radiation region, a second light source unit configured to include a second laser diode radiating a second light beam, and a second scanning mechanism scanning the second light beam and forming a second radiation region, and a signal processor configured to control the first light source unit and the second light source unit. A wavelength of the first light beam is the same as a wavelength of the second light beam. The signal processor forms a multiple radiation region by causing the first radiation region and the second radiation region to overlap each other.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: October 2, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masatoshi Yajima, Akifumi Hashimoto, Kenji Kawano, Masahiro Yamazaki
  • Patent number: 9930751
    Abstract: The invention provides a lighting unit (1) comprising a light source (20) and an actuator (40). The light source (20) is arranged to generate, during use, a light beam (B) whose light intensity is dependent upon an electrical power signal (I; V). The actuator (40) is arranged to orient, during use, the light beam (B) in an orientation dependent upon the electrical power signal (I; V). The orientation of the light beam has a pre-determined relationship to the light intensity of the light beam. The invention further relates to a lighting system (100) comprising at least one lighting unit, a space (1000) comprising such a lighting system, and a use of such a lighting system.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: March 27, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Matthias Wendt, Harald Josef Günther Radermacher
  • Patent number: 9886920
    Abstract: A display apparatus includes: a display panel to display a first image having a first image spectrum corresponding to a first animal spectral sensitivity curve of a first cone cell of an animal, and to display a second image having a second image spectrum corresponding to a second animal spectral sensitivity curve of a second cone cell of the animal, in response to output image data. At least one of the first and second animal spectral sensitivity curves is different from first, second, and third human spectral sensitivity curves of cone cells of a human that perceives red, green, and blue colors.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: February 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Rangkyun Mok, Yijoon Ahn, Wonsang Park, Jongin Baek
  • Patent number: 9784418
    Abstract: The present invention relates to a lighting device (300) having a housing (302) and multiple light sources (308) arranged in the housing. The light sources emit light of a first wavelength range. The lighting device includes a wavelength converting member (310) arranged at a distance from the light sources, and it comprises a first wavelength converting material configured to convert a part of said light of a first wavelength range into light of a second wavelength range. The lighting device further includes a color distribution member (312) providing a color distribution of the light emitted from the lighting device where the ratio of intensity of light with the first wavelength range to the intensity of light with the second wavelength range is larger at low angles to a light output surface of the lighting device than at high angles to the light output surface.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: October 10, 2017
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Ties Van Bommel, Rifat Ata Mustafa Hikmet
  • Patent number: 9553078
    Abstract: A light-emitting diode module includes a carrier and a plurality of optoelectronic semiconductor chips mounted on a carrier top and configured to generate primary radiation. The semiconductor chips are arranged in part at a first distance and in part at a second, greater distance from one another. Between the adjacent semiconductor chips arranged at the first distance from one another there is located a radiation-transmissive first filling for optical coupling. Between the adjacent semiconductor chips arranged at the second distance from one another there is located a radiation-opaque second filling for optical isolation.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: January 24, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Boris Eichenberg, Jürgen Holz
  • Patent number: 9063050
    Abstract: Provided is a weathering test instrument that includes: a light source section including a plurality of solid-state light-emitting elements, in which the solid-state light-emitting elements are different in kind from one another, and are configured to emit light beams having respective wavelength regions that are different from one another; a light receptor configured to receive the light beams radiated from the light source section individually for the respective wavelength regions; and a controller configured to control radiant intensities of the respective solid-state light-emitting elements individually, based on received light amounts for the respective wavelength regions derived from the light receptor, and thereby control irradiance at a sample surface for each of the wavelength regions to allow an accelerated test of a sample to be performed.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: June 23, 2015
    Assignee: SUGA TEST INSTRUMENTS CO., LTD.
    Inventors: Shigeo Suga, Kenji Nishiwada
  • Patent number: 9022589
    Abstract: A simulated sunlight irradiation apparatus (100) has transmittance adjustment members (13a and 13b) provided above an irradiation surface of a light guide plate (10) and in the vicinity of either incident face of the light guide plate (10) on which simulated sunlight is incident. The transmittance adjustment members (13a and 13b) adjust the transmittance of light in a portion of a wavelength band of simulated sunlight that is emitted from the irradiation surface of the light guide plate (10), thus bringing about improvement in spectral coincidence of the simulated sunlight. This provides a simulated sunlight irradiation apparatus that can radiate simulated sunlight with high spectral coincidence.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: May 5, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kohji Minami
  • Patent number: 8985791
    Abstract: A system may include a housing, a diffuser configured to rotate between two positions, a series of lenses correlating to a series of LED lights, and a base. The diffuser may contain one or more lenses that may be arranged to align with the LED lights allowing light transmission.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: March 24, 2015
    Inventor: Gregory Hinzmann
  • Patent number: 8911115
    Abstract: One spectrum correction filter that changes a spectral characteristic of emission light from the light source, at least one neutral density filter disposed on the same optical axis of the spectrum correction filter, wherein the at least one spectrum correction filter and/or the at least one neutral density filter is tilted so that a travel direction of reflection light reflected from the at least one spectrum correction filter is deviated from the optical axis.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: December 16, 2014
    Assignee: Iwasaki Electric Co., Ltd.
    Inventors: Daisuke Ogawa, Kentarou Oohashi, Kazuyoshi Yamada, Katsumi Kimura
  • Patent number: 8880360
    Abstract: A combination mirror and media display device assembly is provided. The combination mirror and media display device includes a mirror platform having a media display device viewing area and a media display device coupled to the mirror platform. The media display device is positioned to display images through the media display device viewing area.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: November 4, 2014
    Assignee: Electric Mirror, LLC
    Inventors: James V. Mischel, Jr., James V. Mischel, Sr.
  • 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
  • Publication number: 20140293571
    Abstract: An artificial sunlight radiation device (10) includes a xenon light source (9), a condensing element (2), a tapered coupler (3), an optical filter (4), a light guide plate (16), a light extracting member (17), and a side-surface reflection member (15) that is provided at one or more side end surfaces of the light guide plate (16), reflects a portion of the light output from the light guide plate (16), and directs the portion of the light toward a radiation surface.
    Type: Application
    Filed: April 2, 2012
    Publication date: October 2, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Atsushi Nakamura, Norito Fujihara, Kohji Minami, Masaru Ogawa
  • 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: 20140233206
    Abstract: A light source device (10) according to the present invention includes a first light source (1) and a first condensing member (2) that has a first opening (24) and that outputs output light from the first light source (1) through the first opening (24). The first condensing member (2) is constituted of a front condensing member (2a) that includes the first opening (24) and a rear condensing member (2b) that does not include the first opening (24). The rear condensing member (2b) is detachable from the first condensing member (2).
    Type: Application
    Filed: May 18, 2012
    Publication date: August 21, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Tadano, Kohji Minami, Masaru Ogawa
  • Publication number: 20140192509
    Abstract: An embodiment of an illumination device comprising a broad band artificial light source and a non-liquid chromatic diffuser transparent to visible light comprising a dispersion of elements of nanometrical dimensions of a first material with of certain refractive index in a second material with different refractive index, wherein the light is scattered producing a separation and different distribution between cold and hot components of the light originally produced by the source, according to a scattering process in “Rayleigh” regime. The device allows illumination effects similar to those of natural outdoor environments to be reproduced in indoor environments.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 10, 2014
    Applicant: LIGHT IN LIGHT S.R.L.
    Inventors: Paolo DI TRAPANI, Marta Cecilia PIGAZZINI
  • Publication number: 20140176179
    Abstract: A simulated sunlight irradiation apparatus of the present invention (100a) includes: a light guide plate (5) having an irradiation surface and a counter surface opposite to the irradiation surface; and a light absorbing member (8) which is provided on at least one of an irradiation surface side and a counter surface side of the light guide plate (5) and absorbs light in a predetermined wavelength region.
    Type: Application
    Filed: April 2, 2012
    Publication date: June 26, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kohji Minami, Masaru Ogawa
  • Patent number: 8752970
    Abstract: A solar simulator for testing photovoltaic cells is disclosed herein. The solar simulator includes a housing having an opening through which light is emitted. The solar simulator employs a plurality of concave cylindrical mirrors and a plurality of flat mirrors that reflect and redirect images of an illuminated light source such that an observer at a target area outside the housing will perceive multiple instances of the illuminated light source. The housing also contains a flat top cover mirror and a flat bottom cover mirror that function to reflect additional light through the opening and toward the target area.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: June 17, 2014
    Assignee: The Boeing Company
    Inventor: Douglas Jungwirth
  • Publication number: 20140160720
    Abstract: An optical element, a lighting system and a luminaire is provided. The optical element comprises a plate 100 and a plurality of collimating means. The optical element is to be used in front of a light source comprising a light emitting surface 106, and the optical element is configured to obtain a skylight appearance. The plate 100 is to be arranged parallel to the light emitting surface 106. The plate 100 is opaque and comprises a plurality of holes 104. The plate 100 further comprises a reflective surface 102 which is to be arranged parallel to the light emitting surface 106. The reflective surface 102 is light reflective in a predetermined spectral range to obtain a blue light emission 100. The plurality of collimating means collimate a part of the light received from the light source to obtain a collimated light beam 112 in a specific direction. Each one of the collimating means comprises one of the plurality of holes of the plate 104.
    Type: Application
    Filed: July 19, 2012
    Publication date: June 12, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Petrus Johannes Hendrikus Seuntiens, Bart Andre Salters, Gabriel-Eugen Onac, Berent Willem Meerbeek, 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: 20140140035
    Abstract: In a simulated sunlight irradiation apparatus (100), at least one of at least one optical filter (4) and at least one optical filter (6) is provided so as to be switchable with another optical filter (14 or 16) having a transmittance characteristic that is different from a transmittance characteristic of the at least one of the at least one optical filter (4) and the at least one optical filter (6).
    Type: Application
    Filed: April 2, 2012
    Publication date: May 22, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kohji Minami, Masaru Ogawa
  • Publication number: 20140133125
    Abstract: An embodiment of a lighting system for illuminating an environment with a lighting that simulates natural lighting includes: a first light source which emits a beam of visible light; a diffused-light generator delimited by an inner surface, which receives the light beam, and an outer surface, the diffused-light generator being at least partially transparent to the light beam. The diffused-light generator transmits at least part of the light beam and emits, through the outer surface, visible diffused light, the correlated color temperature of the transmitted light being lower than the CCT of the visible diffused light. The lighting system includes a dark box which hosts the first light source, the dark box being optically coupled to the environment via the diffused-light generator.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 15, 2014
    Inventors: Paolo DI TRAPANI, Davide MAGATTI
  • Publication number: 20140118987
    Abstract: The present application is directed to an optical filter system for use in a solar simulator, and includes at least one supplemental filter configured not to transmit light having a wavelength of 295 nm or less and to output at least one conditioned signal at least one WG320 optical filter configured to be irradiated by the conditioned signal and output at least one partially filtered signal having a wavelength of about 300 nm or greater, and at least one UG11 pass filter configured to be irradiated by the partially filtered signal and output at least one output signal having a wavelength of about 300 nm to about 400 nm.
    Type: Application
    Filed: June 14, 2012
    Publication date: May 1, 2014
    Applicant: Newport Corporation
    Inventor: Zhuoyun Li
  • Patent number: 8684582
    Abstract: Xenon light emitted from a xenon light source heads for a wavelength-selecting mirror through a taper coupler and an air mass filter. The wavelength-selecting mirror reflects a short wavelength component of the xenon light and emits the short wavelength component to a taper member. Halogen light emitted from a halogen light source heads for a wavelength-selecting mirror through a taper coupler and a reflecting mirror. The wavelength-selecting mirror transmits a long wavelength component of the halogen light and emits the long wavelength component to the taper member. The taper member has width gradually decreasing from an entrance plane for light to an exit plane for the light. The light emitted from the taper member is changed so that a radiation directivity of a component originating from the xenon light becomes similar to a radiation directivity of a component originating from the halogen light.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: April 1, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kohji Minami
  • 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
  • Publication number: 20140029235
    Abstract: An optical element (100) for use in front of a light source (102) for obtaining a skylight appearance, a lighting system and a luminaire are provided. The optical element (100) comprises a light transmitting cell which comprises a light transmitting channel (116), a light input window (106), a light exit window (110) and a wall (108). The light transmitting channel (116) collimates a part of light (104) emitted by the light source (102). The light input window (106) is arranged at a first side of the light transmitting channel (116) and receives light (104) from the light source (102). The light exit window (110) emits light with the skylight appearance. At least a part of the light exit window (110) is arranged at a second side of the light transmitting channel (116) opposite to the first side. The wall (108) is interposed between the light input window (106) and the part of the light exit window (110). The wall (108) encloses the light transmitting channel (116).
    Type: Application
    Filed: April 11, 2012
    Publication date: January 30, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Gabriel-Eugen Onac, Marcellinus Petrus Carolus Michael Krijn
  • Publication number: 20140022756
    Abstract: Solar simulator comprising at least at least one high-intensity discharge (HID) lamp type, and at least one halogen lamp type, which lamps are applied simultaneously and are provided with infrared filter means to provide a mixture of light approximating radiated sunlight, wherein the infrared filter means are embodied as heat reflective foil mounted on a transparent substrate. The heat reflective foil is preferably provided with a repetitive pattern of perforations.
    Type: Application
    Filed: December 5, 2011
    Publication date: January 23, 2014
    Applicant: Eternal Sun Group B. V.
    Inventor: Stefanus Johannes Maria Roest
  • Publication number: 20140009901
    Abstract: A simulated sunlight irradiation apparatus (100) has transmittance adjustment members (13a and 13b) provided above an irradiation surface of a light guide plate (10) and in the vicinity of either incident face of the light guide plate (10) on which simulated sunlight is incident. The transmittance adjustment members (13a and 13b) adjust the transmittance of light in a portion of a wavelength band of simulated sunlight that is emitted from the irradiation surface of the light guide plate (10), thus bringing about improvement in spectral coincidence of the simulated sunlight. This provides a simulated sunlight irradiation apparatus that can radiate simulated sunlight with high spectral coincidence.
    Type: Application
    Filed: February 10, 2012
    Publication date: January 9, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Kohji Minami
  • Patent number: 8622560
    Abstract: An embodiment of an illumination device comprising a broad band artificial light source and a non-liquid chromatic diffuser transparent to visible light comprising a dispersion of elements of nanometrical dimensions of a first material with of certain refractive index in a second material with different refractive index, wherein the light is scattered producing a separation and different distribution between cold and hot components of the light originally produced by the source, according to a scattering process in “Rayleigh” regime. The device allows illumination effects similar to those of natural outdoor environments to be reproduced in indoor environments.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: January 7, 2014
    Assignee: Light In Light S.R.L.
    Inventors: Paolo Di Trapani, Marta Cecilia Pigazzini
  • Patent number: 8579465
    Abstract: A plant growing system of the present invention includes: a first light source for irradiating red light to a plant; a second light source for irradiating far-red light to the plant; a control part that controls irradiation operations of the first light source and the second light source; and a time setting part that sets a time zone in which the control part operates the irradiation of the first light source and the second light source. The time setting part is designed such that the first light source starts red light irradiation before sunset; and the second light source starts far-red light irradiation after the red light irradiation.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 12, 2013
    Assignee: Panasonic Corporation
    Inventors: Makoto Yamada, Masaki Ishiwata
  • 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: 20130294046
    Abstract: A pseudo sunlight emitting device includes a first light source for emitting first light having a certain spectral distribution; a first light guide member for receiving, at its light incident surface, the first light from the first light source, and for emitting, via its light emission surface, light having a controlled directivity; a first optical filter for adjusting a spectrum of the light emitted from the first light guide member; a second light source for emitting second light whose accumulative irradiance in an infrared wavelength region is greater than an accumulative irradiance of a wavelength region of light shorter in wavelength than infrared light; second light guide members for receiving, at their light incident surfaces, the second light from the second light source, and for emitting, via their light emission surfaces, light having a controlled directivity; a second optical filter(s) for adjusting a spectrum of the light emitted from the second light guide member, a number of the second light gu
    Type: Application
    Filed: September 9, 2011
    Publication date: November 7, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Kohji Minami
  • 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: 8523385
    Abstract: The LED grow light fixture uses a densely-packed array of high-brightness LEDs that are not individually packaged where the array behaves similarly to a point source of light. The extended point source LED array, with its lens and associated reflector, result in a concentrated, partially-collimated light source, such that the intensity of the light does not diminish rapidly as distance from the light source increases. The LED array contains a plurality of LED strings that may be separately controlled, thereby allowing the spectral content of the LED grow light to be varied, to facilitate desired plant growth at various stages of plant life. The light emitted at each of the multiple different wavelengths from the array is evenly distributed, when the objects being illuminated by the array are at a distance of less than about 6 feet or even less than 1 foot from the array.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 3, 2013
    Assignee: DiCon Fibêroptics Inc.
    Inventors: Junying Jonathan Lu, Brian I-Yuan Chiang, Ho-Shang Lee
  • Publication number: 20130155643
    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 day-light illumination in a technically relatively simple way.
    Type: Application
    Filed: August 26, 2011
    Publication date: June 20, 2013
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Jörg Meyer, Martinus P. J. Peeters, René T. Wegh, Ramon P. Van Gorkom, Rifat A. M. Hikmet
  • Publication number: 20130114239
    Abstract: A solar simulator includes a source producing radiation and filter material for the source having a higher transmittance at predetermined wavelengths for radiation incident at non-normal angles to the filter material. A collimator between the source and the filter material absorbs a fraction of the non-normal incident radiation to lower the amount of radiation at the predetermined wavelengths reaching the filter material. In one example, the collimator is a metallic honeycomb substrate. The collimator may also include baffles.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 9, 2013
    Applicant: SPIRE CORPORATION
    Inventor: SPIRE CORPORATION
  • 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: 20130069687
    Abstract: A solar simulator having improved measurement precision, including an array of light emitters having point light emitters planarly arranged in a given range, an effective irradiated region spaced apart from a surface having the array thereon, and a portion which absorbs at least a part of light from a direction which passes through a gap between the individual point light emitters. In a preferred aspect, the light absorption portion includes an absorption surface disposed in at least a part of the gaps between the light emitters. In another preferred aspect, a translucent board holds the light emitters and has a translucent portion corresponding to at least a part of the gaps between the light emitters, and an absorption layer at a position for absorbing light from the direction which passes through the translucent portion.
    Type: Application
    Filed: February 14, 2011
    Publication date: March 21, 2013
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Masanori Ooto, Ryouichi Higashi, Tetsuya Saito
  • Publication number: 20130033847
    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: Application
    Filed: March 8, 2011
    Publication date: February 7, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Akiko Kobayashi, Kohji Minami, Hiroyuki Tadano, Norito Fujihara, Tamon Iden, Atsushi Nakamura
  • Publication number: 20130021054
    Abstract: The present invention generally relates to an apparatus used for simulating spectrum of solar radiation and testing a photovoltaic device using the simulated spectrum of solar radiation. In one embodiment, the apparatus includes a light-source device configured to reproducing spectrum of solar radiation, the light-source device comprising a radiation plate divided into a plurality of cells, and each of the cells comprises a plurality of light-emitting diodes emitting at least two different wavelengths, and a substrate support disposed opposite to the light-source device. In one example, the plurality of light-emitting diodes emit a wavelength that is selected from the group consisting of colors blue, green, yellow, red, a first and a second color in infrared having different wavelengths with respect to each other.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 24, 2013
    Applicant: APPLIED MATERIALS ITALIA S.R.L.
    Inventors: Alessandro Voltan, Giorgio Cellere, Gaudenzio Meneghesso, Matteo Meneghini, Diego Barbisan, Enrico Zanoni
  • Patent number: 8324808
    Abstract: A light-emitting diode (LED) lamp for producing a biologically-corrected light. In one embodiment, the LED lamp includes a color filter, which modifies the light produced by the lamp's LED chips, to increase spectral opponency and minimize melatonin suppression. In doing so, the lamp minimizes the biological effects that the lamp may have on a user. The LED lamp is appropriately designed to produce such biologically-correct light, while still maintaining a commercially acceptable color temperature and commercially acceptable color rending properties. Methods of manufacturing such a lamp are provided, as well as equivalent lamps and equivalent methods of manufacture.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 4, 2012
    Assignee: Biological Illumination, LLC
    Inventors: Fredric S. Maxik, Robert R. Soler, David E. Bartine
  • Publication number: 20120287598
    Abstract: Light irradiates readily and reliably with uniform illuminance over an entire irradiation area even if an area of an irradiation subject is large and even after lamp replacement. For each optical system, a lamp light source and an optical filter, which are capable of controlling the light amount, are provided. The irradiation area of the irradiation subject is assumed to be divided into a plurality of areas to be constituted as a plurality of small irradiation areas. Further, the light guiding members of the optical systems correspond to respective ones of the plurality of small irradiation areas, and the plurality of optical systems emit light onto the entire irradiation areas.
    Type: Application
    Filed: August 29, 2011
    Publication date: November 15, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Hiroyuki Tadano
  • Publication number: 20120287599
    Abstract: Precise, uniform illuminance is obtained for an irradiation surface without adjustment time of illuminance of the irradiation surface being time-intensive, even for an expansive area. At least one light source (xenon light source 2 or halogen light source 7, or the like) and an optical filter (air mass filter 5, 10, or the like) functioning as an optical element are matched with a respective light guiding member 14 or 14A. Since an irradiation region of the light guiding member 14 or 14A for surface irradiation is directly matched with a respective part of the irradiation surface (small irradiation surface) of an irradiation subject, illuminance on part of the irradiation surface (small irradiation surface) of the irradiation subject can be adjusted with precision by changing the amount of light entering the inside of the light guiding member 14 or 14A for surface irradiation.
    Type: Application
    Filed: August 29, 2011
    Publication date: November 15, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Atsushi Nakamura
  • Publication number: 20120287597
    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: Application
    Filed: November 29, 2011
    Publication date: November 15, 2012
    Applicant: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
    Inventors: Chih-Hung Wu, Min-De Yang, Chan-Wei Yeh