Abstract: The lighting device, in particular the fog light for motor vehicles comprises a lighting unit for emitting light beams and a lens on which the light beams fall, configured as a Fresnel lens to form light paths in the plane (zy), which is perpendicular to the axis (x) passing through the center of the lens and located at a distance in front of the lens. The lens is not axially symmetrical with respect to the axis (x) and its zones are configured to form a light path whose height (v) is smaller than its width (s).

Abstract: The light guide, especially for motor vehicle signal lamps, comprises a collimator with a collimating wall for binding and routing light rays, and a light guiding body that continues the collimating wall, is of a material with refractive index (n), and is integral, spatially shaped, planar, and fitted at its end with an output emitting surface providing a signal light function. The first height (d) of the body at its beginning where it adjoins the collimating wall, is bigger than its second height where it passes into the emitting surface. The body is adapted to emit light rays generally within angle (?) of diffusion from the optical axis (x), and comprises a transitional surface that is, in its profile towards the emitting surface, inclined towards the longitudinal axis of the profile.

Abstract: A light guiding optical system comprising a light guide at least partially formed of an optically transparent material and a light source situated on an input surface of the light guide. The light guide comprises on its front side an output surface for the output of light rays conducted through and out of the light guide, and on its rear side a tooth-like structure to unbind light rays through the output surface out of the light guide. The light guiding optical system further comprises a reflector at least partially formed of an optically transparent material, positioned near the tooth-like structure, and comprising at least two reflective surfaces configured to totally reflect light rays that have escaped from the light guide through the tooth-like structure and to return them to the light guide.

Abstract: An arrangement for producing a glare-free high-beam for vehicles is disclosed with headlights, which have a plurality of LEDs controllable by an ADB control and regulating unit and that a front camera is provided which is connected with the ADB control and regulating unit and which is designed to transmit information about oncoming and/or preceding vehicles to the ADB control unit, the arrangement being characterized in that the headlights are designed to generate an ADB illumination area asymmetrically only for an area of the own lane and that the headlights are designed to generate for an area of the oncoming lane only a low-beam area and a high-beam area. A method for producing an asymmetrical, glare-free high-beam is also disclosed.

Abstract: A lighting device includes a housing, the housing comprising an opening. The lighting device also comprises a lens operably disposed in the opening, the lens having an outer viewable face and an opposed inner face, the lens comprising an integrally formed axially-extending light guide, the light guide comprising a light inlet end, a light outlet comprising a portion of the outer viewable face, and a light transmission portion, the light transmission portion comprising a light reflecting structure disposed on the inner face. The lighting device also includes a light source, the light guide configured to receive light rays from the light source into the light inlet end, transmit the rays via internal reflectance along light transmission portion to the light reflecting structures where they are reflected outwardly away from the lighting device in a principal direction through the outer viewable face.

Abstract: The light device contains first and second rows of light sources wherein rows are arranged next to each other, collimating elements associated with the light sources to convert their generated light to collimated light, and a light guide to bind the collimated light and emit it from the light guide output surface. Between the collimating element output and the light guide output surface, an optical means is arranged to divide the collimated light to at least two individual, spatially separated light beams, wherein the first light beam is formed by part of the collimated light passing by the optical means, and the second light beam is produced by passing another part of the collimated light through a refractive surface of the optical means. The first and second light beams are displayed on the output surface in the form of separate bands, namely the first and second band (A, B).

Abstract: The light device, especially a signal lamp, for motor vehicles comprises a carrier housing covered by a cover with a front light output surface, a lighting unit positioned within the carrier housing to emit light rays towards the light output surface, and a semi-permeable layer situated between the light output surface and the lighting unit. The device further comprises a partly transparent primary planar optical element positioned between the output light surface and the lighting unit, and a secondary planar optical element positioned between the primary planar optical element and the lighting unit. Generally, the secondary planar optical element comprises at least one non-transparent planar part and one or more partly transparent planar parts, which are arranged in such a way to create one or more areas on the surface of the secondary planar optical element that are at least partly permeable for light rays emitted by the lighting unit.

Abstract: The light device for motor vehicles comprises a carrier case, a translucent cover, and an inner chamber where the light source and a linear light guide are mounted. A part of the light guide's outer casing forms the output surface for exiting light rays. Light guide's body comprises an active part for output of light rays from the light device, and an inactive part not visible in viewing inner chamber through translucent cover. Light guide includes a case comprising two arms, either one having at least one contact area on its inner surface to attach light guide in its mounting position therebetween. The distance between the contact areas can be increased during introduction of the light guide into its mounting position, and subsequently reduced after mounting of light guide to a distance at which the light guide surface is in contact with the arm contact areas.

Abstract: A light device comprises an elongated light guide (2) and a LED source (1) seated in the light guide entry part (3) for emitting the light beam into the light guide (2). The entry part of the light guide comprises mutually intersecting parts of at least two ellipsoids (11, 21) arranged with their main axes (14, 24) next to each other. The LED light sources are fitted in the first focuses (15, 25) of the ellipsoids for emission of light beams and their reflection from the elliptic walls (13, 23) thereof to the second focuses (16, 26) thereof, laying inside the light guide in different distances from the first focuses. The distance between the first focus (15) and the second focus (16) of the first ellipsoid (11) preferably equals at least 1.5 times the distance between the first focus (25) and the second focus (26) of the second ellipsoid (21).

Abstract: A light device, especially a headlight of motor vehicles, comprises at least one light unit (1), or a group (1a, 1b) of light units, at least one optical directing element (3, 2e, 3f), adapted to direct the light beam emitted by the light unit, or group of light units, to the required direction, and at least one output lens (4) for passage of at least a part of the light rays of the light beam or beams to create a light pattern (A, B, C) on the display surface (ZY). On the route of the light beam between the optical directing element and the output lens, there is at least one optical diaphragm element (11, 21, 31) containing a system of trim edges (13, 23, 33) to create the required shape of the cross-section of a part or parts of the light beam designed for transmission along the above-mentioned route.

Abstract: A light device comprises at least one light source (10) to generate light rays (201, 202, 203), an output lens (5), and lateral walls (7, 8) delimiting a space (27) for passage of the light rays after the lens and exiting out of the light device through a transparent cover (9) covering the space at the front. Between the light source and the output lens, a reflective diaphragm (11) is arranged that comprises fixed reflective lateral walls (11a, 11b), for spatial delimitation of the light rays between the lateral walls before they enter the output lens. The output lens has, in the vertical direction at the side facing the diaphragm, a convex shape and the lateral walls include, at the side facing the output lens, free ends (14) that have a rounded concave shape in the vertical direction, which is substantially complementary to the output lens convex shape.

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.

Abstract: A signal lamp for a front and rear lighting of a vehicle includes at least one light source for emitting light, wherein the at least one light source is hidden from view; a reflector for reflecting the light emitted by the at least one light source away from the vehicle; and at least one light guide disposed between the reflector and a cover of the signal lamp, the at least one light guide having a first end and a second end, wherein the first end is disposed adjacent the at least one light source and the second end is located adjacent a focus point of the reflector.

Abstract: A method and a device for the reduction of margins of the light image of a headline, and the headline incorporating the device, is provided, having a reflective diaphragm which is adapted to be shifted in a light axis direction within adjustment limits of a longitudinal position. The margins of the light image can be detected by an optical colour-sensitive photometric sensor, and colour characteristics of the light image margins can be evaluated by identifying a current position of the reflective diaphragm. The reflective diaphragm can then be fixed in the longitudinal position corresponding to selected colour characteristics of the light image margins. The reflective diaphragm can also be adapted to be shifted in a direction perpendicular to the light axis direction.

Abstract: A light device for motor vehicles comprises a carrying housing covered by a translucent cover and an inner chamber where an optical system is mounted containing a light guide with a light guide body for guiding the light generated by the light source and its emission as a light beam through one or more output light surfaces out of the light guide, one or more flat electroluminescence diodes and a reflective element for reflection of light emitted from one or more light emitting surfaces of the flat electroluminescence diode. The electroluminescence diode is attached to the light guide. The light guide is configured to emit the light beam essentially in an optical axis direction, and the reflective element is adapted to reflect light of the electroluminescence diode to a direction that is essentially parallel to the direction of the optical axis.

Abstract: A headlight, especially a motor vehicle headlight, comprises a bushing (1) with a translucent cover (2) forming an inner chamber (3) including a light source (4), an optical system (5) for guiding the light beam from the light source, a cooling body having the light source mounted thereon and fitted with cooling elements (61) to extract heat from the heat source, and a cooling channel (7) for passage of the cooling media for heat extraction from the cooling elements. The cooling channel is closed with respect to the chamber to prevent the cooling media from passing through the chamber outside the cooling channel The body forms the wall of a part of the cooling channel, and the cooling elements face the inner space of the cooling channel. The part of the cooling channel whose wall comprises the cooling body is arranged in a controlled movable way in the inner chamber.

Abstract: The apparatus of a progressive direction indicator, especially for a car headlight or lamp, comprises the main connector (1) as the input electric interface, an LDM power supply module (2) for the power supply of the LED light sources (7), an LED board (4) where the LED light sources are mounted, and an interface (3) interconnecting the LDM power supply module with the LED board. The apparatus further comprises a current controller (9) for setting the current of the LED light sources, with the LDM power supply module comprising a DC/DC converter (5) generating the output voltage V out, which is the voltage source for the LED board. The LED board comprises discrete switching elements (8) for switching of individual LED light sources depending on the input voltage, so that the LED light sources are sequentially switched depending on the output voltage V out.

Abstract: A signal lamp comprises at least one light source arranged at the entry of a longitudinal light guide oriented with its longitudinal axis (?) in the direction (s) of light exit from the lamp, and at least a portion of the light from the light source passes into a transversal light guide oriented with its longitudinal axis (?, ?) transversally to longitudinal axis (?). Transversal light guide is fitted on a part of its casing with an exit surface for light to exit from the lamp. Longitudinal light guide is fitted with at least two reflective surfaces that do not overlap when viewed in the direction of longitudinal axis (?), and that are inclined towards axis (?) to reflect light beams to at least two transversal light guides having their entries against the reflective surfaces, and their exit surfaces at a distance from each other in direction (s).

Abstract: An arrangement and a method for controlling a plurality of light emitting diodes which are connected in series to attain uniform distribution of a total current to several series connections, LED chains, connected in parallel to each other wherein circuitry-related expenditure and power losses occurring during the control process are minimized, include a first reference voltage generating unit and a second reference voltage generating unit, wherein a outlet of the first reference voltage generating unit is connected to a first and a second control circuit, and an outlet of the second reference voltage generating unit is connected to the second and the first control circuit, and an outlet of the first control circuit is connected to a control inlet of the first controllable semiconductor switch, and an outlet of the second control circuit is connected to a control inlet of the second controllable semiconductor switch.

Abstract: A light module for a motor vehicle is disclosed. The light module includes a light source and a reflecting unit. The light module also includes an optical waveguide, wherein the waveguide is formed by a plate-shaped body having an L-shaped cross section, the light-reflecting unit comprises a reflector arranged in front of a shorter input part of the waveguide, and wherein at a place where a shorter inlet part of the waveguide passes into a longer outlet part of the waveguide, an angled surface is provided for total reflection of light passing through the shorter inlet part of the waveguide to the longer outlet part of the waveguide, wherewith a bottom area and an adjacent face of the outlet part of the waveguide are provided with a white coating.