Patent classifications
F21S41/663
Light device, especially a projector system of a headlight for motor vehicles
A light device comprises a laser light source, a primary optical system with at least one diffractive and/or at least one reflective optical element to convert monochromatic coherent light to a collimated beam of coherent light, a MOEMS comprising one or more micro-mirrors to route coherent light and convert it to white light, and a secondary optical system comprising at least one diffractive and/or at least one reflective optical element to direct white light from the light device to create a light pattern on the display surface and/or in specific zones in front of the vehicle. It further comprises an electromagnetic control system connected to the MOEMS and the light source to control changes of rotation angle, oscillation angle and oscillation rate and frequency of one of the micro-mirrors, and to control the light source activity, for controlled changing of the shape and/or position of the light pattern depending on current conditions of the vehicle.
Optical unit
When forming a first light distribution pattern, the controller is configured to control the magnitudes of the drive currents of first light emitting element and the second light emitting element. When forming a second light distribution pattern, the controller is configured to control so that the magnitude of the drive current of the second light emitting element is smaller than when forming the first light distribution pattern and/or so that a time period in which the drive current is to be supplied to the second light emitting element is shorter than when forming the first light distribution pattern.
Optical unit
When forming a first light distribution pattern, the controller is configured to control the magnitudes of the drive currents of first light emitting element and the second light emitting element. When forming a second light distribution pattern, the controller is configured to control so that the magnitude of the drive current of the second light emitting element is smaller than when forming the first light distribution pattern and/or so that a time period in which the drive current is to be supplied to the second light emitting element is shorter than when forming the first light distribution pattern.
AUTOMOTIVE LIGHTING SYSTEM FOR VEHICLES
The present invention relates to the field of automotive lighting, and in particular to an automotive lighting system for a vehicle. The automotive lighting system for a vehicle comprises: a plurality of light sources; a plurality of primary optics, each being a reflector, arranged in a matrix and configured to receive and redirect light from the plurality of light sources; and a secondary optics configured to receive the redirected light from the plurality of primary optics and project the received light in front of the vehicle. Further, each light source is disposed in a focal plane of a corresponding one of the plurality of primary optics, and at least one of the plurality of primary optics is disposed in a focal plane of the secondary optics.
Reducing thermal sensitivity of a lighting arrangement
The invention relates to a lighting arrangement with at least one LED lighting element (15) arranged on a support member (12). An optical element (16) is arranged spaced from the LED lighting element (15) in a first direction O. A holder (14) is provided to hold the optical element (16) in a position relative to the LED lighting element (15). The holder (14) comprises at least a first holding portion (24a) extending from the support member (12) into the first direction O and a second holding portion (24b) connected to the optical element (16). The second holding portion (24b) is arranged such that at least a part extends into the first direction O. The second holding portion (26b) is spaced from the first holding portion (24a) in a direction traverse to the first direction O. In the case of distortions due to temperature changes and a mismatch of the coefficient of thermal expansion, the lighting arrangement minimizes variations in the displacement of the optical element (16) relative to the LED lighting element (15).
Vehicle lamp
The present invention is characterized by a lens body in which a first lens unit configured to form a first light distribution pattern which includes a first cut-off line; and a second lens unit configured to form a second light distribution pattern which includes a second cut-off line, wherein the first lens unit forms the first light distribution pattern when light from a first light source which entered the first lens unit is emitted from the first lens unit, the second lens unit forms the second light distribution pattern when light from a second light source which entered the second lens unit is emitted from the second lens unit, and the first lens unit and the second lens unit are integrally molded.
Vehicle lamp
The present invention is characterized by a lens body in which a first lens unit configured to form a first light distribution pattern which includes a first cut-off line; and a second lens unit configured to form a second light distribution pattern which includes a second cut-off line, wherein the first lens unit forms the first light distribution pattern when light from a first light source which entered the first lens unit is emitted from the first lens unit, the second lens unit forms the second light distribution pattern when light from a second light source which entered the second lens unit is emitted from the second lens unit, and the first lens unit and the second lens unit are integrally molded.
Laser head lamp for vehicle and vehicle
A laser head lamp for a vehicle includes: a plurality of lamp modules each comprising a laser diode and configured to output at least one of a low beam or a high beam; at least one processor; and a computer-readable medium coupled to the at least one processor having stored thereon instructions which, when executed by the at least one processor, causes the at least one processor to perform operations comprising: acquiring total operation time of each of the plurality of lamp modules; and controlling, based on the acquired total operation times, at least one first lamp module among the plurality of lamp modules differently from at least one second lamp module among the plurality of lamp modules.
Laser head lamp for vehicle and vehicle
A laser head lamp for a vehicle includes: a plurality of lamp modules each comprising a laser diode and configured to output at least one of a low beam or a high beam; at least one processor; and a computer-readable medium coupled to the at least one processor having stored thereon instructions which, when executed by the at least one processor, causes the at least one processor to perform operations comprising: acquiring total operation time of each of the plurality of lamp modules; and controlling, based on the acquired total operation times, at least one first lamp module among the plurality of lamp modules differently from at least one second lamp module among the plurality of lamp modules.
Lighting module forming a light pattern divided into a sharp upper portion and a fuzzy lower portion
A lighting module for a motor vehicle headlight including at least one light source and optical elements for forming at least one light pattern, characterized in that each light pattern is divided into an upper portion and a lower portion which are lit simultaneously and inseparably, the upper portion being delimited transversely by two vertical edges for each of which the light intensity decreases according to a first determined gradient, and the lower portion being delimited transversely by two vertical edges for each of which the light intensity decreases according to a second determined gradient lower than the first determined gradient.