Abstract: A lighting device for a motor vehicle includes a light source for sending out a light beam. The lighting device also includes a lightguide of elongated shape made of a plastic, primarily transparent material for guiding the light beam, while a portion of a mantle of the lightguide forms an exit surface for emergence of rays of light of the light beam, wherein another portion of the mantle of the lightguide opposite the exit surface is at least partly provided with a diffuse means formed by a nontransparent coating or foil pressed against the mantle of the lightguide, or joined to a diffuse means of the plastic primarily nontransparent material in the process of injection molding of the plastic.

Abstract: A concentric lighting module with conical mirror for creating of a three-dimensional optical effect, especially in the outer brake and tail lights of a motor vehicle, has in the peripheral region of the conical mirror (3) a cylindrical output part (2c) of a light guide (2) provided by at least one offset (2d) on its outer side, which terminates in an active surface (2e) and which couples in the region beyond the conical mirror (3) to the collimator part (2b) of the light guide (2), formed by a parabolic collimator and a lens and applied by its input part (2a) against the light source (1) of the module, and at the transition between the collimator part (2b) and the output part (2c) of the light guide (2) the module is provided with a total internal light reflection surface (4), whose bottom part also forms an optical prism (4a).

Abstract: Methods, systems, devices and/or apparatus related to lighting systems, and, specifically, to LED lighting systems for vehicles. One example provides a lighting system that includes a power control component, a wire harness, and a light emitting diode component. The power control component may be in electrical communication with a power supply. The power control component may receive an input voltage from the power supply, adjust the input voltage to generate an output voltage, and output the output voltage. The wire harness may be in electrical communication with the power control component. The light emitting diode light component may be in electrical communication with the wire harness, and may include a plurality of light emitting diodes electrically coupled in a parallel configuration via a plurality of wires, each of the plurality of wires being substantially shaped as a wave.

Abstract: A dual-color aviation Anti Collision Light (ACL) has a first set of LEDs that emit a substantially white beam of light and a second set of LEDs that emit a substantially red beam of light. The ACL can be operated in a first mode in which the red LEDs are excited by themselves so that the ACL produces a red beam of light In a second mode, the white LEDs and the red LEDs are excited simultaneously to produce a white beam of light having a chromaticity within the definition of Aviation White. Operating the red LEDs in the white mode has two synergistic effects. First, the red LEDs augment the luminous output of the white LEDs so that fewer white LEDs are required, thus saving cost and space. Second, the red LEDs shift the chromaticity of total light output toward the red region. This has the effect of compensating for the tendency of the white LEDs to become greener with age.

Abstract: A dimmable LED reading light unit includes a dimming module and an LED module, connected in series. The dimming module has an input being connectable to a power supply supplying direct voltage and includes a potentiometer allowing section of a dimming rate and a current controller providing an operating current for the LED module. The LED module includes at least one LED and a current consumer connected in parallel and the current controller is configured to supply direct current to the LED module that substantially corresponds to the sum of the driving current necessary for driving the at least one LED to emit light with an intensity of illumination corresponding to the dimming rate of the potentiometer, and the current consumption of the current consumer.

Abstract: Some embodiments relate to dimmer control circuitry for LED lighting, comprising: phase control circuitry to control the supply of voltage to at least one LED load, wherein the phase control circuitry comprises an AC switch to selectively provide voltage to the LED load for a first portion of a half cycle of an AC supply voltage, and a drive component to drive the AC switch so that the AC switch remains on for the first portion of the half cycle; and load switching circuitry to couple a dissipative load to an output of the AC switch during a second portion of the half cycle, wherein the second portion overlaps with the first portion.

Abstract: A theater lighting apparatus including a plurality of light emitting modules or light emitting devices contained within a lamp housing each having a remotely controllable pan and tilt axis. The theater lighting apparatus is also capable of remotely positioning the lamp housing containing the plurality of light emitting modules. The theater lighting apparatus may include a base, and the lamp housing. The plurality of light emitting devices may include a first light emitting device which is individually remotely positionable to project a first light in a first direction, a second light emitting device which is individually remotely positionable to project a second light in a second direction, and a third light emitting device which is individually remotely positionable to project a third light in a third direction. The first direction, the second direction, and the third direction may be different from each other.

Abstract: An object is to provide an LED module that eliminates the need for providing electrodes between each device and allows LEDs to be arrayed with high density. An LED module includes a substrate, a first frame member, a second frame member disposed outside the first frame member, a plurality of LEDs for producing white light disposed within the first frame member, a phosphor resin disposed within the first frame member, a plurality of LEDs for producing colored light disposed between the first frame member and the second frame member, and electrodes for applying a voltage to the plurality of LEDs for producing the white light, wherein a metal wire to connect the plurality of LEDs for producing the colored light to one another is disposed so as to straddle a part of each of the electrodes.

Abstract: An autonomous emergency light unit for an aircraft has a power input for receiving power from an external power supply, a rechargeable power source, at least one LED for illuminating the emergency light unit, and a light unit control logic configured to operate the emergency light unit in a plurality of operating states as a response to external control information received and processed by the light unit control logic. The plurality of operating states includes a discharge and illumination state, with the rechargeable power source being discharged over the at least one LED in the discharge and illumination state. The light unit control logic is configured to operate the emergency light unit in the discharge and illumination state as a response to no power being provided at the power input.

Abstract: A projector headlamp includes light sources, a cooling system and reflector comprising an upper part with a first focal point and second focal point and a lower part with a first focal point and second focal point. The headlamp also includes an aperture with a cutoff edge proximate an optical axis of the headlamp and a convergent lens. The convergent lens includes at least two segments with their own first focal points, the first segment in a lower part of the convergent lens has a greater optical power than a second segment in an upper part, the first focal points of the segments located near the optical axis of the headlamp between the light sources and the lens. The light sources comprise at least two light sources, a first adjoins the first focal point of the upper part and a second adjoins the first focal point of the bottom part.

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.

Abstract: A multi-color light unit includes a plurality of lighting circuits, with each lighting circuit being coupled to a joint power terminal. The plurality of lighting circuits include a first lighting circuit, which includes a first current source, coupled to the joint power terminal, a plurality of first LED's, in operation emitting light of a first color, and a plurality of voltage drop diodes, in operation not emitting light, the plurality of first LED's and the plurality of voltage drop diodes being coupled to the first current source. The plurality of lighting circuits further include a second lighting circuit, which includes a second current source, coupled to the joint power terminal, and a plurality of second LED's, in operation emitting light of a second color, the plurality of second LED's being coupled to the second current source. The first current source and the second current source are of equal design.

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).

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.

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.

Abstract: A method of manufacturing a lighting device comprising a body of headlamp or rear light of a motor vehicle that comprises a housing enclosing a transparent cover wherein: 1) the body is clamped in a fixture and a set of actual positions of control points of the cover or housing are measured; 2) the measured actual positions of the control points are compared in a three-dimensional model with a respective calculated tolerance space of control points bounded by permissible deviations from nominal positions; 3) if the actual positions of all the control points do not match up within the respective calculated tolerance space of control points, a set of corrected positions is identified and selected; 4) determining corresponding corrected positions of the associated locating elements for attachment of the lighting device from the corrected positions of the control points; and 5) joining the locating elements in the corrected positions.

Abstract: A light for an aircraft comprises a holder for carrying a first group of light emitting diodes arranged along a curvilinear line and a first reflector having an elliptic reflective partial surface defining a plurality of focal points forming a first curvilinear focal line coinciding with the light emitting sites of the first group of light emitting diodes and second focal point or curvilinear focal line. The light further includes a second optical unit comprising a single further focal point or curvilinear focal line that coincides with the second focal point or focal line of the first reflector. The light further includes a second group of light emitting diodes displaced axially with respect to the first light emitting diodes, which emit light that bypasses the second focal point or focal line of the first reflector of the first optical unit.

Abstract: The invention comprises a method for indicating that an LED flash light for an aircraft such as an anti-collision or beacon or strobe LED light has reached a near-end-of-life status, wherein the LED flash light under normal operational condition within a given time interval generates a predetermined number of normal flashes with the number being one or more than one, e.g. two. The method comprises the steps of determining the actual photometric condition of the LED flash light, and comparing the actual photometric condition to a given condition in a normal flashing mode. If the actual condition deviates from the given condition by more than a predetermined amount, the LED flash light is operated in order to generate within the given time interval one additional near-end-of-life-indicating flash.

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.

Abstract: An object is to provide an LED module that eliminates the need for providing electrodes between each device and allows LEDs to be arrayed with high density. An LED module includes a substrate, a first frame member, a second frame member disposed outside the first frame member, a plurality of LEDs for producing white light disposed within the first frame member, a phosphor resin disposed within the first frame member, a plurality of LEDs for producing colored light disposed between the first frame member and the second frame member, and electrodes for applying a voltage to the plurality of LEDs for producing the white light, wherein a metal wire to connect the plurality of LEDs for producing the colored light to one another is disposed so as to straddle a part of each of the electrodes.