Patents Assigned to Lighting Systems
  • LED LIGHT UNIT AND METHOD OF REPLACING AN LED LIGHT UNIT
    Publication number: 20140334175
    Abstract: An LED light unit, in particular for a passenger transportation vehicle, such as an aircraft, a road vehicle, a ship or a rail car, has a support portion a light source having at least one LED, the light source being arranged on the support portion, and a refractive optical element having an inner surface and an outer surface the refractive optical element being attached to the support portion and being arranged over the light source. The refractive optical element has a chamfer portion adjacent the support portion, wherein at least one of the inner surface and the outer surface has at least one chamfer surface in the chamfer portion.
    Type: Application
    Filed: April 11, 2014
    Publication date: November 13, 2014
    Applicant: Goodrich Lighting Systems GmbH
    Inventors: Anil Kumar Jha, Christian Schoen, Andre Hessling von Heimendahl
  • LED LIGHT UNIT AND METHOD OF OPERATING AN LED LIGHT UNIT
    Publication number: 20140333221
    Abstract: An LED light unit, in particular for a passenger transport vehicle, such as an aircraft, a road vehicle, a ship or a rail car, is disclosed that has at least one LED and is configured to be used with a high intensity discharge lamp power supply that is adapted to monitor its output behavior. The LED light unit comprises a power input coupleable to the high intensity discharge lamp power supply, a capacitor switchably coupled to the power input for absorbing electrical energy from the high intensity discharge lamp power supply, and a power dissipating element switchably coupled to the power input for dissipating electrical energy from the high intensity discharge lamp power supply.
    Type: Application
    Filed: April 25, 2014
    Publication date: November 13, 2014
    Applicant: Goodrich Lighting Systems GmbH
    Inventors: Robert Trinschek, Andre Hessling von Heimendahl, Steffen Roebke
  • DIMMABLE LED LIGHT UNIT AND METHOD OF REPLACING A LIGHT UNIT
    Publication number: 20140333223
    Abstract: A dimmable LED light unit, in particular for a passenger transportation vehicle, such as an aircraft, a road vehicle, a ship or a rail car, is disclosed that comprises a power input adapted to receive electrical power from a power source, at least one LED, and an LED drive and control module coupled between the power input and the at least one LED, wherein the LED drive and control module is adapted to receive an LED control signal indicative of a desired light intensity of the dimmable LED light unit.
    Type: Application
    Filed: April 11, 2014
    Publication date: November 13, 2014
    Applicant: Goodrich Lighting Systems GmbH
    Inventors: Robert Trinschek, Frederik Kraemer, Carsten Geske
  • LED LIGHT UNIT AND METHOD OF PRODUCING AN LED LIGHT UNIT
    Publication number: 20140334174
    Abstract: An LED light unit comprises a support portion, a light source having at least one LED, the light source being arranged on the support portion and having a source-side light intensity distribution (LISS), and a refractive optical element having an inner surface and an outer surface, with at least one of the inner surface and the outer surface being non-spherical, the refractive optical element being arranged over the light source and being attached to the support portion.
    Type: Application
    Filed: April 11, 2014
    Publication date: November 13, 2014
    Applicant: Goodrich Lighting Systems GmbH
    Inventors: Anil Kumar Jha, Christian Schoen, Andre Hessling von Heimendahl
  • LIGHTING DEVICE
    Publication number: 20140334171
    Abstract: Lighting device, which is intended especially for external end lighting of motor vehicles, consists of an elongated light guide, provided with a light source at least at one of its ends and located in the space between the white rear cover of the lighting device and its front lens, while along the light guide on the side facing the front lens there is produced a transparent shielding filter in the form of a strip, for shielding the light guide, which is provided with a set of optical elements for directing the guided luminous flux onto the exit surface of the light guide, which is oriented in the direction of the internal surface of the white rear cover.
    Type: Application
    Filed: May 12, 2014
    Publication date: November 13, 2014
    Applicant: Varroc Lighting Systems, s.r.o.
    Inventors: Miroslav Kropac, Libor Juttner, Ludek Mazal, Tomas Mateju
  • STROBE LIGHT UNIT AND AIRCRAFT COMPRISING THE SAME
    Publication number: 20140328074
    Abstract: A strobe light unit, particularly wing anti-collision strobe light unit for an aircraft, comprises at least one light source, particularly at least one LED; a reflector element, the at least one light source and the reflector element being configured for projecting light into a desired range of directions; and a stray light blocking element for blocking stray light from being projected into undesired directions, the stray light blocking element attached to the reflector element or to a base portion of the strobe light unit.
    Type: Application
    Filed: April 10, 2014
    Publication date: November 6, 2014
    Applicant: Goodrich Lighting Systems GmbH
    Inventors: Anil Kumar Jha, Christian Schoen, Andre Hessling
  • Pulse switched resistor driver
    Publication number: 20140312790
    Abstract: Pulse switching controller for the LED lighting of the LED drive module for lamps in automobile applications provided with light sources having LED diodes and a drive module for the LED function and excitation, where the drive module (3) comprises at minimum one resistance regulator (38) working in pulse switching duty, which is connected by its input to the last cathode of the corresponding branch (33) of LED diodes and by its output to the input electrode of a switching element (37), which is connected by its output electrode to ground, while the controlling electrode of the switching element (37) is connected to the output of a pulse generator (36) with a set duty cycle in dependence on the input voltage, which is connected both by a sensor input to the input voltage from the input circuit (31) and by an external input (35).
    Type: Application
    Filed: December 31, 2013
    Publication date: October 23, 2014
    Applicant: Varroc Lighting Systems s.r.o.
    Inventors: Martin Svrcek, Jiri Kocian
  • Discharge-lamp lighting device
    Patent number: 8866405
    Abstract: A lighting device has a direct-current power generation circuit, a rectangular-wave generation circuit, a pulse generating circuit, lamp-voltage detection means, and pulse-generation command means. The direct-current power generation circuit generates direct-current power from external power. The rectangular-wave generation circuit converts the direct-current power to rectangular-wave alternating-current power. The pulse generating circuit superposes high-voltage pulses on the rectangular-wave power output from the rectangular-wave generation circuit and starts a discharge lamp. The lamp-voltage detection means detects, in digital form, a lamp voltage supplied to the discharge lamp. The pulse-generation command means issues a pulse generation command to the pulse generating circuit when the value detected by the lamp-voltage detection means reaches a predetermined no-load-voltage determination level.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: October 21, 2014
    Assignee: Eye Lighting Systems Corporation
    Inventors: Yoshihisa Umezawa, Kensuke Kaneko, Tomokazu Osato
  • Combined aircraft landing and taxi light
    Patent number: 8851718
    Abstract: An integrated aircraft landing and taxi light includes upper and lower reflector regions in the shape of substantially circular segments and a central longitudinal third reflector region extending between the upper and lower reflector regions. Landing light LEDs are arranged within the upper and lower reflector regions and the outer portions of the central longitudinal reflector region with the diagonals of the LED dies oriented substantially along radial lines extending outward from the center of the light. Taxi light LEDs are arranged within the central and outer portions of the central longitudinal reflector region such that the sides of the LED dies are oriented substantially horizontally and vertically with respect to the aircraft.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: October 7, 2014
    Assignee: Goodrich Lighting Systems GmbH
    Inventors: Anil Kumar Jha, Andre Hessling, Christian Schön
  • Lighting device
    Patent number: 8836227
    Abstract: A lighting device has a power-factor correction circuit 6, a step-down chopper circuit 8, a full-bridge circuit 10, control ICs for these circuits and a driving-voltage supply circuit 14. The supply circuit 14 supplies a driving voltage to the control ICs. The control IC outputs the on/off driving voltage to a switching element of the corresponding circuit 6 to 10. The lighting device also has a detector 16 and judgment equipment 18. The detector 16 detects the driving voltage supplied from the supply circuit 14. The judgment equipment 18 instructs the control ICs to start outputting the on/off driving voltages in the order from the control IC close to the power source 2 to the control IC close to the discharge lamp 4 when the driving voltage detected by the detector 16 reaches a predetermined value during the time when the driving voltage supplied from the supply circuit 14 rises.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: September 16, 2014
    Assignee: Eye Lighting Systems Corporation
    Inventors: Yoshihisa Umezawa, Kensuke Kaneko
  • DIMMABLE LED READING LIGHT UNIT, ARRANGEMENT OF POWER SUPPLY AND DIMMABLE LED READING LIGHT UNIT, METHOD OF OPERATING A DIMMABLE LED READING LIGHT UNIT IN A POWER SUPPLY SYSTEM, AND METHOD OF REPLACING A DIMMABLE LIGHT UNIT BY A DIMMABLE LED READING LIGHT UNIT
    Publication number: 20140252952
    Abstract: A dimmable LED reading light unit, in particular for a passenger transportation vehicle, such as an airplane, a bus or a ship, comprises an input which is connectable to a potentiometer that outputs a direct voltage having a voltage intensity corresponding to a selected potentiometer position; a load current source being configured to generate a predetermined load current; a current controller providing an operating current for operating at least one LED; and an electronic measuring and control unit; wherein the load current source and the current controller are connected to the input in parallel.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: Goodrich Lighting Systems GmbH
    Inventors: Robert Trinschek, Tomasz Kordecki, Frederik Kraemer
  • LED READING LIGHT AND METHOD OF REPLACING AN LED READING LIGHT
    Publication number: 20140254190
    Abstract: An LED reading light, in particular for a passenger transport vehicle, such as an aircraft, a road vehicle, a ship or a rail car, is disclosed that has a plurality of illuminating LED's and in operation provides a desired light intensity for a set supply current, wherein the LED reading light comprises two power supply terminals connectable to a power supply for receiving the set supply current, and at least one lighting strand coupled between the two power supply terminals. Each of the at least one lighting strand comprises at least one voltage drop diode, with the at least one voltage drop diode in operation not contributing to the desired light intensity, and at least one of the illuminating LED's. The illuminating LED's are distributed among the at least one lighting strand and connected such that they jointly provide the desired light intensity for the set supply current.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 11, 2014
    Applicant: Goodrich Lighting Systems GmbH
    Inventor: Steffen Roebke
  • DIMMABLE LED READING LIGHT UNIT, ARRANGEMENT OF POWER SUPPLY AND DIMMABLE LED READING LIGHT UNIT, METHOD OF OPERATING A DIMMABLE LED READING LIGHT UNIT IN A POWER SUPPLY SYSTEM AND METHOD OF REPLACING A DIMMABLE LIGHT UNIT BY A DIMMABLE LED READING LIGHT UNIT
    Publication number: 20140252951
    Abstract: A dimmable LED reading light unit according to exemplary embodiments of the invention, in particular for a passenger transportation vehicle, such as an airplane, a ship, a bus, or a railcar, comprises an input connectable to a potentiometer being supplied with a constant supply voltage and outputting a direct voltage having a voltage intensity corresponding to a selected dimming rate; an electronic measuring and control unit connected to at least one LED and providing an operating current to the at least one LED.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 11, 2014
    Applicant: Goodrich Lighting Systems GmbH
    Inventor: STEFFEN ROEBKE
  • Feeding device for a geometrically closed lightguide
    Patent number: 8814404
    Abstract: Feeding device for a geometrically closed lightguide (1) of the signal lamps of motor vehicles placed on both sides of the vehicle comprising a light feeder (4) and a geometrically closed lightguide (1). The two parts are joined and form a single plastic molding. A prism-shaped cavity (9) with total internal light reflection for a uniform light distribution at both sides of the enclosed lightguide (1) is formed at the site of their joint. A semi-transparent insert (16) is inserted in the prism-shaped cavity (9), made of material with a precise ratio of transparent and cloudy components to control the amount of unwanted light arising on the planar surfaces (10;11) of the prism-shaped cavity (9) with total internal light reflection.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: August 26, 2014
    Assignee: Varroc Lighting Systems, S.R.O.
    Inventors: Jan Martoch, Tomas Nejezchleba
  • BLOCK LIGHT MODULE
    Publication number: 20140233251
    Abstract: A light module for a motor vehicle is disclosed. The light module includes a light source and a reflecting unit. The light module also includes an optical waveguide, wherein the waveguide is formed by a plate-shaped body having an L-shaped cross section, the light-reflecting unit comprises a reflector arranged in front of a shorter input part of the waveguide, and wherein at a place where a shorter inlet part of the waveguide passes into a longer outlet part of the waveguide, an angled surface is provided for total reflection of light passing through the shorter inlet part of the waveguide to the longer outlet part of the waveguide, wherewith a bottom area and an adjacent face of the outlet part of the waveguide are provided with a white coating.
    Type: Application
    Filed: January 3, 2014
    Publication date: August 21, 2014
    Applicant: Varroc Lighting Systems s.r.o.
    Inventors: Miroslav Kropac, Ludek Mazal, Tomas Mateju, Libor Juttner
  • Aircraft light
    Patent number: 8801240
    Abstract: An aircraft light, particularly for emitting light onto a runway during takeoff or landing and/or onto the ground during taxi, comprises a light source (30), a reflector (12), a support frame (18) for the reflector (12), and an adjustable bearing arrangement (20) including at least two joints (22) pivotably supporting the reflector (12). The adjustable bearing arrangement (20) comprises at least one extendable and retractable adjustment element (24) guided at the support frame (18) along a movement axis (26). At least one of the two joints (22) is formed as a ball-type joint. The ball-type joint (22), to compensate for a change of the distance (A,A?) between the at least two joints (22) of the bearing arrangement (20) upon movement of the adjustment elements (24) for tilting the reflector (12), slidably engages the reflector substantially orthogonal to the movement axis (26) of the adjustment element.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: August 12, 2014
    Assignee: Goodrich Lighting Systems, Inc.
    Inventors: Aravind Edupalli, Peter Sterghos
  • LED FAILURE DETECTION
    Publication number: 20140210507
    Abstract: A fault detecting circuit in a string of LEDs D1-Dc containing comparing operational amplifiers IC1/IC2 connected to a current source is divided into sections, D1-Da, D2-Db, and D3-Dc, wherein the common between the Da cathode and the D2 anode is connected to the noninverting input of IC1, while the common between the Db cathode and the D3 anode is connected to the noninverting input of IC2, and to the string D1-Db is connected in parallel to a divider comprising R1/R2, while the string comprising D2-Dc is connected in parallel to a divider comprising R3/R4, and the common of R1/R2 is connected to the inverting input of IC1 and the common of R3/R4 is connected to the inverting input of IC2, while the outputs of IC1/IC2 are connected to the bases of corresponding transistors T1/T2, whose emitters are connected to ground and collectors are connected to the voltage source and also to the output terminal.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 31, 2014
    Applicant: Varroc Lighting Systems s.r.o.
    Inventors: Jaroslav Jezersky, Matej Smrek
  • FIXING SYSTEM FOR LIGHTING FIXTURE PARTS, ESPECIALLY AUTOMOBILE LIGHTS
    Publication number: 20140198511
    Abstract: A fixing system for lighting fixture parts, especially the lights of an automobile, includes a thermoplastic outer lens (2), which is installed in a thermoplastic encircling housing (3) by means of a sealing adhesive (4) and secured by fastening elements. The fixing element is a brad pin (1) which is shot through a groove (31) of the encircling housing (3) and a lug (21) of the outer lens (2), with a profile in the shape of a circle flattened at least at two diametrically opposite places, having a longitudinally smooth brad pin shank (14) along its entire length, which is covered by an adhesive (112) to hold the brad pins (1) together.
    Type: Application
    Filed: August 22, 2013
    Publication date: July 17, 2014
    Applicant: Varroc Lighting Systems, s.r.o
    Inventors: Milan Cejnek, Jindrich Chylek, Robert Rysavy
  • Programmable de-fogger system for a light projector
    Patent number: 8770764
    Abstract: A light projector for operation during a show that contains theatrical haze. The light projector may include a light source, a lens, a fan, and a housing having an inner chamber. The lens may have a first side and a second side. The first side of the lens may be contained within the inner chamber of the housing. The second side the lens may be outside of the inner chamber of the housing. The fan may be configured to be operated to generate air flow inside the inner chamber of the housing. A substantial portion of the air flow may be directed to impinge upon the first side of the lens to cause de-fogging of theatrical haze condensate on the first side of the lens.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: July 8, 2014
    Assignee: Barco Lighting Systems, Inc.
    Inventors: Richard S. Belliveau, David R. Dahly, David Karl Peck
  • Anti-collision aircraft light
    Patent number: 8773044
    Abstract: An anti-collision aircraft light comprises at least one LED and a control unit for operating the at least one LED in a pulsed manner. In this anti-collision aircraft light, the control unit comprises an ambient temperature sensor for sensing the ambient temperature and an adjustable current control for setting an LED operating current depending on the sensed ambient temperature. The control unit further includes a light intensity sensor for sensing the intensity of the light emitted from the at least one LED, an integrator connected to the light sensor for integrating the sensed light intensity, and a comparator for comparing the integrated light intensity to a threshold value. The operating current for the at least one LED is interrupted as soon as the integrated light intensity is equal to the threshold value.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: July 8, 2014
    Assignees: Goodrich Lighting Systems GmbH, Airbus Operations GmbH
    Inventor: Andre Hessling