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.

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.

A vehicle winglet (e.g., sideview mirror, camera or radar assembly, etc.) is provided with sequential illumination of light-emitting diodes (LEDs). A light guide is connected to and covers the LEDs. The light guide is made of a translucent material and is configured to guide light illuminated by the LEDs and transfer the light out of the light guide. The light guide includes a plurality of light guide towers extending therefrom. Each light guide tower is aligned with a respective one of the LEDs. In some embodiments, a plurality of collimators are provided, with each collimator aligned with a respective one of the LEDs and with a respective one of the light guide towers to redirect the light illuminated from the respective LED into the respective light guide tower.

Provided is an aromatic polycarbonate resin composition that is excellent in terms of hue and thermal yellowing-inhibiting effect and is suitable for light guide members incorporated in automobile lighting devices. The aromatic polycarbonate resin composition comprises: 100 parts by mass of an aromatic polycarbonate resin (A); 0.001 to 0.1 parts by mass of a phosphite stabilizer (B-I) as a phosphorus-based stabilizer (B) having a spiro ring skeleton; 0.01 to 0.5 parts by mass of a phosphite stabilizer (B-II) as a phosphorus-based stabilizer (B) represented by general formula (II) below; 0.05 to 2 parts by mass of a polybutylene glycol compound (C); and 0.0005 to 0.2 parts by mass of an epoxy compound (D). ##STR00001## In the formula (II), R.sup.21 to R.sup.25 each independently represent a hydrogen atom, an aryl group having 6 to 20 carbon atoms, or an alkyl group having 1 to 20 carbon atoms.

A control circuit includes a first light source, a second light source, an input channel for receiving an input signal, at most two output channels each configured to control one of the first light source and the second light source, where the control circuit is configured to use at most two cables, and is capable of permanently powering on one of the first light source and the second light source while, at the same time, flashing on and off the other of the first light source and the second light source.

A control circuit includes a first light source, a second light source, an input channel for receiving an input signal, at most two output channels each configured to control one of the first light source and the second light source, where the control circuit is configured to use at most two cables, and is capable of permanently powering on one of the first light source and the second light source while, at the same time, flashing on and off the other of the first light source and the second light source.

A light assembly that acts as a light source multiplier. The light assembly includes a light guide having a light source side and an emitting side with a center portion between the light source side and the emitting side. Both the light source side and the emitting side have a truncated sawtooth shape. The light source side has a plurality of truncated portions and a plurality of apex portions between each truncated portion, with one or more of the apex portions ending in the center portion of the light guide. In some implementations, a number of light guide segments are oriented in a lattice configuration.

A light assembly that acts as a light source multiplier. The light assembly includes a light guide having a light source side and an emitting side with a center portion between the light source side and the emitting side. Both the light source side and the emitting side have a truncated sawtooth shape. The light source side has a plurality of truncated portions and a plurality of apex portions between each truncated portion, with one or more of the apex portions ending in the center portion of the light guide. In some implementations, a number of light guide segments are oriented in a lattice configuration.

A vehicle light system including a light source, a spatial light modulator and a projection device; the light source includes a plurality of light-emitting modules which may be independently controlled; the spatial light modulator includes a plurality of modulation regions in one-to-one correspondence with the light-emitting modules; light emitted by a light-emitting module is incident on a modulation region corresponding thereto; each modulation region includes a plurality of light modulation units; the vehicle light system further includes a control device; according to an input signal, the control device generates a light source control signal, which is used for controlling the light output intensity of each light-emitting module of the light source, and a light modulation signal, which is used for controlling the spatial light modulator, such that the light transmission rate of at least one light modulation unit in any one of the modulation regions reaches an upper limit value.

A vehicle light system including a light source, a spatial light modulator and a projection device; the light source includes a plurality of light-emitting modules which may be independently controlled; the spatial light modulator includes a plurality of modulation regions in one-to-one correspondence with the light-emitting modules; light emitted by a light-emitting module is incident on a modulation region corresponding thereto; each modulation region includes a plurality of light modulation units; the vehicle light system further includes a control device; according to an input signal, the control device generates a light source control signal, which is used for controlling the light output intensity of each light-emitting module of the light source, and a light modulation signal, which is used for controlling the spatial light modulator, such that the light transmission rate of at least one light modulation unit in any one of the modulation regions reaches an upper limit value.