Abstract: A monitoring circuit and a method for function monitoring is disclosed where the device includes the input being connected with a first subassembly that detects a frequency range of the status signal, with the first subassembly being connected with a second subassembly to implement a logical signal combination. The second subassembly is connected with a third subassembly generating a delayed output signal. The method compares a frequency fsw of the status signal with a lower first cutoff frequency f1 and an upper second cutoff frequency f2. When the frequency fsw of the status signal is located within the predetermined frequency range, the functional reliability signal is provided with a first voltage level, and when the frequency fsw of the status signal is located outside of the predetermined frequency range, the functional reliability signal is provided with a second voltage level that is different from the first voltage level.

Abstract: The light-guiding optical unit (1) for a light device of motor vehicles comprises a light guide (2) that comprises at least one routing surface (3), and at least one light source (4) to generate light rays (10). The light-guide (2) further comprises a top surface (12) at least a part of which is constituted by the output surface (15), and a bottom surface (13) opposite the top surface (12) and fitted with a prismatic structure (16) comprising reflective surfaces (7).

Abstract: The light device of a motor vehicle comprises a light unit (4) and a cover (2). The light unit (4) comprises a light guide (7) with a front surface (8) for the exit of light rays (10) from the light guide (7) situated opposite the cover (2), a rear surface (9) comprising unbinding elements (73) configured to reflect light rays (10) towards the front surface (8), and at least one binding surface (71) to bind light rays (10) emitted by the light source (6) associated with the binding surface (71) to the light guide (7). The light device further comprises a carrier (5) situated opposite the rear surface (9) of the light guide (7) and configured to reflect light rays (10) that have escaped from the light guide (7) through the rear surface (9) back to the light guide (7). The cover (2) comprises at least one impermeable region (22) preventing light rays (10) from passing out of the cover (2), and at least one permeable region (21) to allow light rays (10) to pass through the cover (2).

Abstract: A light assembly includes a core, a light source, and a functional layer. The core extends along a centerline, and includes a base end, a distal end, a first side spanning axially between the base and distal ends, and a second side opposite the first side and spanning axially between the base and distal ends. The second side includes an unbinding element axially extending partially between the base and distal ends. The light source is adapted to emit light rays into the core at the base end. The functional layer is laterally spaced from the first side, axially extends partially between the base and distal ends, and is axially aligned to the unbinding element.

Abstract: A light beam forming module, in particular in the vehicle external lighting system, is in the form of a monolithic body formed of a plurality of contiguous cross-sectional segments, each of which includes an entrance surface facing the light source, an exit surface, and a first total internal reflection surface and at least another total internal reflection surface. A first total internal reflection surface is positioned downstream of the entrance surface, and at least one further total internal reflection surface has a shaped optical structure formed thereon.

Abstract: The invention relates to a communication device of a motor vehicle (X), comprising an imaging camera (2) of a scene image (11) connected to control electronics (1), to which a DMD (7) is connected, the mirror surface (70) of which is preceded by optics (3), whereby the mirror surface (70) is functionally associated with a secondary imaging unit (5) having an optical sensor (50) adapted to receive a selected part of the light (32) from the scene image (11) reflected by a selected part of the mirrors of the mirror surface (70) of the DMD (7). The DMD (7) is part of the vehicle lighting device (0) in which an illumination unit (4) is arranged towards the mirror surface (70) of the DMD (7), the illumination unit (4) being adapted to illuminate controllably at least a part of the mirror surface (70) of the DMD (7) and to emit the desired light output beam (30).

Abstract: A circuit includes a primary light emitting diode (LED) string, a secondary LED string, a reference line, and primary and secondary transistors. The primary string includes a voltage drop, and a node disposed between two adjacent LEDs of the primary string. The secondary string is configured in parallel with the primary string. The secondary string has a voltage drop that is less than the primary voltage drop. The reference line is coupled to the node. The primary transistor includes a drain, a gate, and a source. The drain is coupled to a primary string output terminal. The gate is coupled to the reference line, and the source is coupled to a ground. The secondary transistor includes a drain, a gate, and a source. The drain is coupled to a secondary string output terminal. The gate is coupled to the reference line, and the source is coupled to the ground.

Abstract: A monitoring circuit and a method for function monitoring is disclosed where the device includes the input being connected with a first subassembly that detects a frequency range of the status signal, with the first subassembly being connected with a second subassembly to implement a logical signal combination. The second subassembly is connected with a third subassembly generating a delayed output signal. The method compares a frequency fsw of the status signal with a lower first cutoff frequency f1 and an upper second cutoff frequency f2. When the frequency fsw of the status signal is located within the predetermined frequency range, the functional reliability signal is provided with a first voltage level, and when the frequency fsw of the status signal is located outside of the predetermined frequency range, the functional reliability signal is provided with a second voltage level that is different from the first voltage level.

Abstract: A multi-branched light guide device for a light assembly includes first, second, and third braches each adapted to internally transmit respective portions of a plurality of lights rays along respective directions. The branches each include a respective outer surface adapted to internally reflect the respective portions in the respective directions. A trunk of the device is connected to the branches, and is adapted to internally transmit the plurality of light rays against the outer surfaces of the branches.

Abstract: The light device comprises a housing (1) covered with a transparent or semi-transparent cover (2) that delimit an inner chamber (3) inside the housing (1), a light unit (5) situated in the chamber (3) and equipped with at least one light source, a cooler (4) associated with the light unit (5), and a tubular cooling conduit (7) that passes through an opening (10) in the housing (1) into the chamber (3) to supply cooling medium (8) from the cooling medium (8) source installed outside the housing (1) to the cooler (4) and comprises a drive means (74) for forced flow of the cooling medium (8) in the tubular cooling conduit (7). The tubular cooling conduit (7) is connected to the cooler (4) in such a way that the cooling medium (8) does not escape from the tubular cooling conduit (7) and cooler (4) to the surrounding space in the chamber (3).

Abstract: A light assembly includes a substantially closed housing, a light source, a thermoelectric device, and a moisture expulsion device. The housing is defines a chamber, and includes a lens. The light source is adapted to direct light from the chamber and through the lens. The thermoelectric device includes a cold side and a hot side. The cold side is adapted to form condensation from moisture in the chamber. The moisture expulsion device includes a first segment in contact with the hot side and adapted to receive thermal heat from the hot side, and a second segment in contact with the first segment and exposed to an external environment for dissipation of moisture. The second segment is adapted to receive thermal heat from the first segment, and condensate from the cold side.

Abstract: The light device comprises an optical module (17), comprising a light source (5) and an associated optical body (8) of a transparent material to bind light rays (10) emitted by the source (5). The source (5) is a multidirectional light source configured to emit the primary light beam (6) of rays (10) towards the cover (1), and secondary beams (7) comprising rays (10) that are approximately transversal with respect to the rays (10) of the primary beam (6). The body (8) has a front surface (12) that forms a central front recess (18) in the body (8), a rear surface (14) that is opposite to the front surface (12) and is, in the direction from the optical axis (x) of the optical module (17), which passes through the source (5), inclined towards the cover (1), and a lateral surface (13) connecting the front surface (12) with the rear surface (14). The deepest point of the front recess (18) is situated approximately at the optical axis (x).

Abstract: The light device comprises an internal chamber (2) that is covered by a translucent cover, which separates the light device from the external surroundings of the motor vehicle; inside the chamber, there is at least one lighting unit (3) whose active area (4) for the exit of light rays (10) from the lighting unit (3) is situated opposite the translucent cover and contains a light-conductive core (15) of an optically transparent material with an associated light unit (7) located opposite the entry area (9) of the light-conductive core (15) to emit light rays (10) into the body (14) of light-conductive core (15). Between the light-conductive core (15) and the translucent cover there is a functional layer (23) configured to focus the beams of light rays (10) that exit its surface averted from the light-conductive core (15) in a predetermined direction.

Abstract: A communication device is provided for a motor vehicle that works with traffic-relevant information provided through light signals. The communication device comprises a primary imaging optical system to create the input image from the received scenic image, which may comprise a light car2car signal and/or a light car2X signal including traffic-relevant information. It further comprises a DMD array of mirrors for receiving the input image and transmitting it to a primary optical sensor adapted to convert the input optical image to an electric signal for processing, to thereby find out whether and what places of the input image sources of the signals are found in.

Abstract: The light-guiding optical unit comprising a light guide made of an optically transparent material having the shape of a plate with top and bottom surfaces, a light unit to emit light rays, and a collimating element comprising the first reflective surface configured to reflect light rays that fall onto it in the direction (A1, A2) towards the light guide output surface. The top or bottom surface of the light guide has a recess whose surface comprises second and third reflective surfaces, which are configured to reflect light rays falling onto them to respective lateral reflective surfaces that are part of the surface of the light guide. A recess is situated between the first reflective surface and the output surface in such a way that a part of the light rays reflected from the first reflective surface pass through this recess after this reflection before falling onto the output surface.

Abstract: A vehicle lighting device includes an elongated light guide, a reflector, and a volumetric diffuser. The elongated light guide is provided with a non-circular profile that is swept along an elongated spline curve that closely follows a shape of a vehicle's lamp compartment. Light propagates along the length of the light guide by the principal of total internal reflection and is directed towards the diffuser via prismatic optics. The reflector forms a channel around the light guide and redirects scattered light towards the volumetric diffuser. The light guide and reflector together illuminate the volumetric diffuser surface which transmits light into a beam pattern to provide a uniformly lit lighting device.

Abstract: The collimator comprises an output area approximately having the shape of an n-gon with legs and apices, for collimation of light rays emitted by a light source. In viewing the collimator from the side from the optical source in the direction of the lighting axis, the collimator comprises n first parts and n second parts. Each first part is associated with one of the legs of the n-gon and comprises the first sector of the first circular collimator, approximately inscribed in the n-gon so that this leg is tangential to the outline of the circular output area of the first circular collimator. Each second part is associated with one of the apices and is comprised in a second sector of the second circular collimator, approximately circumscribed around the n-gon so that the outline of the output area of this second circular collimator passes through the apex.

Abstract: The light-guiding optical system comprises at least one light source (2) and a light guide (1) for coupling and guiding light rays (10) emitted by a light source (2). Furthermore, the light guide (1) may comprise a decoupling surface (4) on its rear side (13) and an output surface (3) for the exit of light rays (10) decoupled by the decoupling surface (4) on an opposite front side (14). The decoupling surface (4) comprises: (i) first decoupling elements (5) configured to decouple light rays (10) falling onto the first decoupling elements (5) out of the light guide (1) approximately in a pre-determined first output direction (p) to fulfill a first light function, and (ii) a second decoupling element (6) configured to uncouple light rays (10) falling onto the second decoupling elements (6) out of the light guide (1) approximately in a pre-determined second output direction (d), which is deflected from the first output direction (p), to fulfill the second light function.

Abstract: The light-guiding optical system comprises at least one light guide (1) made from an optically transparent material with an associated collimating element (2), and a light unit (3) to emit light rays (10) into the collimating element (2). The light guide (1) comprises on its front side an output surface (12) for the output of light rays (10) conducted by the light guide (1) out of the light guide (1), and on its bottom or top side, a binding surface (11) to bind light rays (10) collimated by the collimating element (2) into the light guide (1).

Abstract: A lighting system for automobiles is proposed which includes a laser light source emitting a primary laser light bundle within a solid angle area around a beam direction, a photoluminescence element positioned within the emitted primary light beam, and a protective element that protects against stray laser rays. The photoluminescence element is configured to absorb the laser rays impinging on said element and by means of the photoluminescence to radiate secondary light rays. The lighting system includes a protection system with a protective element of an elongated shape having a first end and a second end, wherein the first end of the protective element is positioned within the beam direction of the primary light beam and downstream of the photoluminescence element.