F21S41/00

LIGHTING AND/OR SIGNALING DEVICE FOR A MOTOR VEHICLE, PROVIDED WITH A LIGHT MODULE COOLED BY MEANS OF AN AIR FLOW GENERATOR

The present invention concerns a lighting and/or signaling device (10) for a motor vehicle, said lighting and/or signaling device (10) comprising: a housing (1); an outer lens (3) designed to close the housing (1); at least one light module (5) housed inside said housing (1) comprising: at least one optical surface (9, 9′, 9″); at least one light source (7, 7′) interacting with said optical surface (9, 9′) to form a light beam; a heat sink (11) comprising a plurality of fins (13); an air flow generator (15) designed to generate an air flow (17) towards the heat sink (11), said air flow (17) passing through the fins (13) of the heat sink (11); and a light module holder (19) comprising a front part (20a) oriented toward the outer lens (3) with a plurality of gaps (21) designed to direct the air flow (17) coming from the heat sink (11) towards the outer lens (3).

VEHICLE LAMP

There is provided a vehicle lamp including a projection lens, a first light source arranged at a rear of the projection lens and configured to emit light for forming a predetermined light distribution pattern, a reflector configured to reflect the light emitted from the first light source towards the projection lens, a first array light source arranged at the rear of the projection lens and including a plurality of semiconductor light emitting elements aligned in at least one row, and a second array light source arranged at the rear of the projection lens and including a plurality of semiconductor light emitting elements aligned in at least one row. The first array light source and the second array light source are arranged in an upper-lower direction.

ILLUMINATION DEVICE
20170334339 · 2017-11-23 · ·

An illumination device includes: a predetermined range illumination section capable of illuminating a predetermined range with illumination light emitted from a mobile object; and an eye direction detection section for detecting the direction of the eyes of a driver of the mobile object and/or the direction of the face of the driver. The predetermined range illumination section controls the distribution of the illumination light or the on/off of the illumination light based on the direction of the eyes of the driver and/or the direction of the face of the driver, detected by the eye direction detection section.

Optoelectronic semiconductor chip, method for producing an optoelectronic semiconductor chip and headlight comprising an optoelectronic semiconductor chip
11670742 · 2023-06-06 · ·

An optoelectronic semiconductor chip and a method for producing an optoelectronic semiconductor chip are disclosed. In an embodiment an optoelectronic semiconductor chip includes a semiconductor layer sequence having a plurality of pixels, the semiconductor layer sequence comprising an active layer configured to generate electromagnetic radiation of a first wavelength range and a plurality of conversion elements, wherein each conversion element is configured to convert the radiation of the first wavelength range into radiation of a second wavelength range, wherein each pixel has a radiation exit surface and a conversion element is arranged on each radiation exit surface, and wherein each conversion element has a greater thickness in a central region than in a peripheral region.

Optoelectronic semiconductor chip, method for producing an optoelectronic semiconductor chip and headlight comprising an optoelectronic semiconductor chip
11670742 · 2023-06-06 · ·

An optoelectronic semiconductor chip and a method for producing an optoelectronic semiconductor chip are disclosed. In an embodiment an optoelectronic semiconductor chip includes a semiconductor layer sequence having a plurality of pixels, the semiconductor layer sequence comprising an active layer configured to generate electromagnetic radiation of a first wavelength range and a plurality of conversion elements, wherein each conversion element is configured to convert the radiation of the first wavelength range into radiation of a second wavelength range, wherein each pixel has a radiation exit surface and a conversion element is arranged on each radiation exit surface, and wherein each conversion element has a greater thickness in a central region than in a peripheral region.

ILLUMINATION DEVICE

An illumination device has a coherent light source, an optical device that diffuses the plurality of coherent light beams and illuminates a predetermined illumination area, and a timing control unit that individually controls incident timing of the plurality of coherent light beams to the optical device or illumination timing of the illumination area, wherein the optical device has a plurality of diffusion regions, the diffusion regions being provided corresponding to the plurality of coherent light beams, the plurality of diffusion regions illuminate the illumination range by diffusion of incident coherent light beams, the plurality of diffusion regions have a plurality of element diffusion regions, the plurality of element diffusion regions illuminate partial regions in the illumination area by diffusion of incident coherent light beams, and at least parts of the partial regions illuminated by the plurality of element diffusion regions are different from one another.

LIGHTING DEVICE FOR A MOTOR VEHICLE AND MOTOR VEHICLE HAVING THE LIGHTING DEVICE
20170307169 · 2017-10-26 ·

In various embodiments, a lighting device for a motor vehicle is provided. The lighting device includes at least one light source, and at least one layer of a lacquer embodied such that light may be coupled into the lacquer for achieving a luminous effect. Scattering particles are provided in the lacquer for output coupling of the light.

LENS ASSEMBLY FOR IMPLEMENTING LOW BEAM
20170336050 · 2017-11-23 ·

A lens assembly for implementing a low beam may include: a first lens including an incident surface having a shape enclosing a light emitting diode (LED), and an exit surface through which light of the LED exits in a direction perpendicular to the exit surface; and a second lens disposed on the exit surface of the first lens and configured to project the light of the LED that exits from the exit surface. The light of the LED that is projected through the second lens may form a low-beam pattern.

VEHICULAR LIGHTING DEVICE

A vehicular lighting device from which a fluorescent material is omitted that may cause deterioration of color rendering properties and occurrence of color separation is provided. The vehicular lighting device can have higher in color rendering properties than a conventional white light source obtained by combining a semiconductor light-emitting element such as an LD and the fluorescent material (wavelength converting member) and can suppress occurrence of color separation. A vehicular lighting device of the presently disclosed subject matter includes a supercontinuum light source that outputs supercontinuum light containing a visible wavelength region, and an optical system that controls the supercontinuum light output by the supercontinuum light source.

LIGHTING CIRCUIT AND VEHICULAR LIGHTING DEVICE

A blade receives light emitted from a light source and repeats a predetermined periodic motion to scan the front of a vehicle with reflected light of the emitted light. A position detector generates a position detection signal S4 indicating a timing at which a predetermined reference point of the blade passes a predetermined position. Based on the position detection signal S4, a period calculator calculates a period Tp of the periodic motion of the blade. A light intensity calculator receives light-distribution-pattern information S3 to be formed in front of the vehicle and calculates light intensity to be generated by the light source at each time based on the position detection signal S4 and the period Tp. A driver turns on a semiconductor light source so as to obtain the light intensity calculated by the light intensity calculator at each time.