Automobile Lighting Unit with OLED Light Sources and Related Operating Method

    公开(公告)号:US20200309844A1

    公开(公告)日:2020-10-01

    申请号:US16832070

    申请日:2020-03-27

    IPC分类号: G01R31/26 B60Q1/02

    摘要: An automobile lighting unit is provided that includes a lighting device provided with one or more OLED light sources, and an electronic device configured in such a way as to control an OLED light source by means of a pilot signal which has a trailing edge wherein the pilot signal varies between a high value and a low value, to determine an electrical quantity indicative of the electrical behaviour of the OLED light source in a measurement time interval (toff) following the trailing edge of said pilot signal, and to determine a failure condition of the OLED light source on the basis of an electrical quantity.

    Method of making a vehicle light and related vehicle light

    公开(公告)号:US10781990B2

    公开(公告)日:2020-09-22

    申请号:US15168573

    申请日:2016-05-31

    摘要: A vehicle light having a container body having a first perimetral profile, a lenticular body, having a second perimetral profile, wherein the first and second perimetral profile of the container body and the lenticular body are at least partially counter-shaped to each other in order to interface at a welding interface of an abutment edge of the lenticular body. The container body delimits a containment seat that houses a light source and the lenticular body is applied to the container body so as to close the containment seat. A redirection surface is adapted to receive laser beams, to concentrate and reflect them towards the welding interface. The redirection surface is arranged on an inner face of the abutment edge, the inner face facing the containment seat and incident with the welding interface. A method of making the vehicle light is also disclosed.

    Automotive lighting and/or signaling device

    公开(公告)号:US11346994B2

    公开(公告)日:2022-05-31

    申请号:US16405010

    申请日:2019-05-07

    摘要: A lighting and/or signaling device, comprising: a light guide adapted to receive a light ray beam to a light outlet wall which creates a lighting portion of the lighting and/or signaling device, at least one LED light source adapted to receive the light beam, transmitted by total internal reflection towards the light outlet wall. The device includes at least one reflector element associated with the light inlet and diffusion wall of the light guide and directly facing the respective extraction elements so as to reflect light towards the light outlet wall. A diffusion layer is arranged to cover the lighting portion on the side of the light outlet wall. The diffusion layer has a differentiated transmission factor according to the light intensity of the incident light rays on the lighting portion so as to obtain a uniform light intensity over the whole lighting portion.

    System and Method for Determining the Reflectance of A Reflector of A Lamp of A Motor Vehicle

    公开(公告)号:US20220163447A1

    公开(公告)日:2022-05-26

    申请号:US17533789

    申请日:2021-11-23

    IPC分类号: G01N21/55

    摘要: A system for determining the reflectance of a reflector of a lamp of a motor vehicle. The system comprises a light source designed to emit a predetermined light beam to illuminate the reflecting surface of the reflector, imaging capturing apparatus that is arranged so as to capture a series of images) containing the illuminated reflecting surface of the reflector, a processing device that is configured so as to digitally remove a first component (LS2) associated with a first photometric quantity of the light source from the images) so as to determine a second component (associated with the first actual photometric quantity of the reflector to determine the reflectance of the reflector based on second component.

    Automotive Lighting and/or Signaling Device and Assembly Method Thereof

    公开(公告)号:US20220163178A1

    公开(公告)日:2022-05-26

    申请号:US17534881

    申请日:2021-11-24

    摘要: A lighting and signaling device for automotive vehicles, comprising a container body delimiting a containment housing closed by a lenticular body, which accommodates at least one first light source and is closed by a lenticular body, a first light guide configured to receive as input at least partially the light beam produced by the first light source, transmits the light beam by total internal reflection along a first prevailing propagation direction and sends it as output from the lenticular body. A fixing and/or screen element, opaque to the light beam is associated with the first light guide at a first interface wall, and is fixed either directly or indirectly onto the container body to mechanically block the first light guide onto the container body. The first light guide is mechanically fixed to the fixing and/or screen element by at least one first welding portion which projects from the first interface wall.

    Vehicle lighting and/or signalling device

    公开(公告)号:US10788609B2

    公开(公告)日:2020-09-29

    申请号:US16562674

    申请日:2019-09-06

    摘要: A lighting and/or signaling device comprising a light guide which extends from a light input and diffusion wall to a light output wall that realizes a lighting portion, at least one LED light source, suitable to emit a light beam and facing a light input portion of said light input and diffusion wall. The lighting portion includes a central lighting portion and a peripheral lighting portion, surrounding the central lighting portion, the light guide being provided with extraction elements arranged on the light input and diffusion wall. A hologram is arranged between the LED light source and the light input portion so as to distribute according to a predefined pattern the light rays emitted by the LED light source and obtain a predefined luminance on the central lighting portion and the peripheral lighting portion.