Abstract: A vehicle headlight (1), which is one aspect of a vehicle illumination lamp, includes: light sources (52R, 52G, 52B), and diffraction gratings (54R, 54G, 54B) for diffracting light incident from the light sources (52R, 52G, 52B). The light diffracted by the diffraction gratings (54R, 54G, 54B) is irradiated in a predetermined light distribution pattern. A projection area (AR) to which are projected components (LCR, LCG, LCB) advancing and passing through the diffraction gratings (54R, 54G, 54B) among the light incident on the diffraction gratings (54R, 54G, 54B) is positioned below the light distribution pattern and within a range (RNG) in which a field of view of a driver of a vehicle is obstructed by the vehicle.
Abstract: A wheel illumination apparatus is disclosed. The wheel illumination apparatus includes a diffuser ring set behind wheel of a motor vehicle with a lighting source disposed behind the diffuser to illuminate the wheel. The light source is carried in a channel ring that is positioned on an inboard side of the diffuser ring. The light source may be an LED lighting strip. The light strip may be electrically coupled to an electrical system of the motor vehicle or may have a rechargeable battery. The lighting system of the present invention creates a visual impression where the wheels themselves seem to glow, rather than the wheel well or other areas on a vehicle.
Abstract: A lighting fixture including a light source having an array of light emitting diodes (LEDs); a reflector having an input end adjacent the array of LEDs and an output end opposite the input end such that the light source emits light through the reflector from the input end through the output end; and a tandem lens array adjacent the output end of the reflector. The tandem lens array includes a first side that faces toward the array of LEDs and a second side that is opposite the first side, wherein the first side includes an array of lenses and the second side includes an array of lenses.
Abstract: An aircraft light collimation and redirection apparatus and method devised to reflect, refract, focus, and collimate light from a light source along particular steradians relative to an aircraft to maximize the perceived luminous intensity at all statutorily required angles of observation while minimizing the required luminous efficacy of the light source.
Abstract: When at least one scope of 0.5 mm square or more of a surface of an optical sheet having the unevenness is measured, height data of each of a plurality of pixels of an image obtained is determined, an approximated surface is calculated, from the height data of each pixel, for a minute region of 100 ?m2 or less, and a calculation is repeatedly performed to obtain an inclination angle between: (i) a flat surface appearing after the unevenness is imaginarily removed and: (ii) the approximated surface, while two-dimensionally shifting the minute region at equal intervals along the flat surface by using at least one of the pixels as a unit to obtain a plurality of minute regions, a total area of some of the minute regions each having the inclination angle of 30° or more, accounts for 30% or more of a total area of all the minute regions.
Abstract: A site light including body, an arm coupled to the body having an adjustable arm length, a light assembly coupled to the arm opposite the body, and a drive mechanism with a crank arm rotatable about a first axis, where rotating the crank arm in a first direction causes the arm length to increase, and where rotating the crank arm in a second direction causes the arm length to decrease. The site light also includes a damper assembly in operable communication with the drive mechanism, where the damper assembly resists rotation of the drive mechanism when the crank arm rotates in the second direction, and where the damper assembly does not resist the rotation of the drive mechanism when the crank arm rotates in the first direction.
May 14, 2018
Date of Patent:
October 12, 2021
Milwaukee Electric Tool Corporation
David Proeber, Ross McIntyre, Jason D. Thurner, Michael A. Verhagen, Gareth Mueckl, Brian Cornell, Dalton F. Hansen, Anthony R. Sleck
Abstract: Light emitting device (LED) circuit board layouts for low profile lighting fixtures are provided. In some embodiments, the lighting fixture can include a fixture housing. The lighting fixture can include one or more LED devices disposed on a circuit board. The lighting fixture can include one or more electronic components associated with at least one of a driver circuit or a filter circuit (e.g., as part of a flicker reducing circuit) disposed on the circuit board. The one or more LED devices are disposed on a first portion of the circuit board and the electronic components are disposed on a second portion of the circuit board. The second portion of the circuit board can be spaced radially apart from a center point of the circuit board relative to the first portion.
Abstract: Multiview backlighting employs a fluorescent multibeam element having a color-tailored emission pattern to provide directional light beams corresponding to a plurality of different views of a multiview image. A multiview backlight includes a light guide configured to guide light as guided light and a fluorescent multibeam element. The fluorescent multibeam element includes a fluorescent material and is configured to provide emitted light having a color-tailor emission pattern from the guided light. The emitted light includes a plurality of directional light beams having different principal angular directions corresponding to respective different view directions of a multiview display and the color-tailored emission pattern corresponds to an arrangement of color sub-pixels of a view pixel in the multiview display.
Abstract: Light bar assemblies configured to be mounted to a rim of a steering wheel of a vehicle are disclosed. The light bar assemblies can include components of a driver monitoring system. The light bar assembly includes two shells defining or surrounding the rim and a wrapping surrounding the two shells. A portion of the wrapping is tucked into a slot disposed between the two shells forming a slit. A lens is disposed within the slit and pinched by the wrapping to prevent leakage of light around the lens.
December 9, 2020
Date of Patent:
September 28, 2021
Autoliv ASP, Inc.
Richard L. Matsu, Brian Tebelman Shellabarger, Julien Tudor, Werner Eckardt, Stephen Camm
Abstract: A light emitting diode lamp includes a light source configured to emit light that defines a spectral power distribution curve including a first power peak and a second power peak with a first reduced power area extending therebetween. The first reduced power area defines a first reduced power area minimum in a green color region of the spectral power distribution curve and the spectral power distribution curve compares a power of the light versus a wavelength of the light.
November 10, 2017
Date of Patent:
September 14, 2021
ENERGY FOCUS, INC.
Jeremiah A. Heilman, Dmitri Dmitrievich Kourennyi, Janna Mino
Abstract: A light guide module includes a light guide element and a light source. The light guide element includes a first light guide layer and a second light guide layer. The second light guide layer is disposed on the first light guide layer. The refractive index of the first light guide layer is greater than the refractive index of the second light guide layer. The light source is disposed in the first light guide layer.
Abstract: A light source device includes: an excitation light source that emits excitation light having an energy density of 10 W/mm2 or more; and a phosphor layer that has phosphor particles embedded in the matrix. The phosphor particles include at least one selected from the group consisting of metal oxides represented by a following formula (1) and metal oxides represented by a following formula (2). Y3-x1-y1R1y1Cex1Al5-z1Gaz1O12??(1) Y3-x2-y2R2y2Cex2Al5-z2Scz2O12??(2) In the formula (1), R1 includes at least one selected from the group consisting of Gd and Tb, and x1, y1, and z1 satisfy 0.003?x1?0.03, 0?y1?2.1, and 0?z1?2.2, respectively. In the formula (2), R2 includes at least one selected from the group consisting of Gd and Tb, and x2, y2, and z2 satisfy 0.003?x2?0.03, 0?y2?2.1 and 0?z2?1.5, respectively.
Abstract: Systems and methods for narrow collimating and diffused lighting, such as narrow collimating and diffused linear LED lighting. In one embodiment, a stacked arrangement including an optical sheet is arranged to receive a light pattern from a LED light to produce a narrower light pattern with diffusion. In one aspect, the optical sheet is a lenticular sheet of microscopic lines.
Abstract: A refrigerator door and a manufacturing method of the same are disclosed. The refrigerator door includes a front panel that includes a first through hole and an input unit, a door liner, an upper cap decoration unit configured to seal an upper side of a first space defined between the front panel and the door liner, a frame attached to an inside of the front panel and defining a second space, a display assembly provided between the frame and the front panel and configured to emit light through the first through hole, and a touch sensor assembly provided between the frame and the front panel, the touch sensor assembly being fixed to a rear of the front panel at a position that corresponds to a location of the input unit. The upper cap decoration unit includes a communication hole for communicating with the second space and includes a cap cover.
November 25, 2020
Date of Patent:
August 24, 2021
LG Electronics Inc.
Hyunki Kim, Minchel Kim, Seungje Park, Kihyun Park
Abstract: A light-emitting apparatus for an automobile sunroof with a changing display pattern is provided, comprising: a light-guiding layer, a light-emitting module, and a fixing batten; wherein a coating layer is provided on the first surface of the light-guiding layer, and the coating layer includes a first pattern and the second pattern, the second surface of the light-guiding layer includes a third pattern; the light-emitting module includes a plurality of first light-emitting elements, second light-emitting elements, third light-emitting elements, and limiting blocks; the first light-emitting element emits ultraviolet light to make the first pattern produce a fluorescent reaction; the second light-emitting element emits infrared light to make the second patterns produce a fluorescent reaction; the third light-emitting element emits primary color light to make the third pattern appear through reflection and refraction.
Abstract: A vehicle lighting device that includes a laser radiation source, wherein a controlled reflective MEMS scanning mirror is situated in the path of laser radiation from the laser radiation source, wherein in the path of radiation reflected by the controlled reflective MEMS scanning mirror is located an imaging optical element and further an output optics, wherein the laser radiation source and the MEMS are connected to a power supply and control device.
Abstract: The disclosure relates to an optical element for a lighting device, the optical element comprising a body capable of conducting light, wherein the body comprises: a light incoupling surface; a light outcoupling surface; and side faces situated opposite to each other and extending from the light incoupling surface to the light outcoupling surface; wherein at least one of the side faces has an aspherical shape at least in sections. The at least one side face having the aspherical shape is capable of focussing light originating from a first point on the light incoupling surface to a second point on the light outcoupling surface by internal reflection at least in the sections. The optical element may serve in the lighting device as a precollimator with configurable intensity distribution of the precollimated light. The shape of the optical element may be easily determined for various dimensions of the optical element.
Abstract: Provided is a line illuminating device including: a light-emitting unit including a light-emitting-unit housing and a light emitter that emits light; a light guide including a light-guide body formed in a rod shape and a light-guide flange provided at a first end portion of the light-guide body; and a case including a case body formed in a rod shape, the case body being partially open when viewed in a longitudinal direction of the case body, the case body housing the light-guide body inside, in which the light-guide flange is interposed between a first end in the longitudinal direction of the case body and the light-emitting-unit housing, and a space is formed between an end of the light-guide body and the light emitter.
Abstract: A light fitting for recessed mounting of a luminaire in a substrate includes a luminaire support having a neck portion to support a luminaire and a head portion having a light beam channel for the passage of light from a luminaire through the luminaire support to a mouth and a peripheral insert defining at least a portion of the light beam channel, which facilitates provision of inter-changeable functions and features on the internal surface of the luminaire support and within the light beam channel.
Abstract: The present disclosure provides a lighting display device, including: a light source module, a light shield module, and a projection lens module; the light source module includes a light source array unit, a first light shield array unit, and a light receiving lens array unit; the light source array unit includes a plurality of light sources which are independently controlled, the first light shield array unit includes first light shields disposed outside each light source, the light receiving lens array unit includes a plurality of light receiving lenses; the light shield module includes a light-transmitting substrate having a plurality of light-transmitting parts, a light-shielding pattern is disposed on the light-transmitting parts; the projection lens module includes a second light shield array unit, and a projection lens array unit; the second light shield array unit contains multiple second light shields, the projection lens array unit contains multiple projection lenses.