Abstract:
PROBLEM TO BE SOLVED: To provide a light-emitting diode device that is particularly cooled effectively. SOLUTION: There are provided at least one optical element 4 disposed correspondingly in each light-emitting diode chip, and at least one heat transmitting element 13 suitable for introducing heat generated by the light-emitting diode chip 1, and at least one cooling device suitable for introducing the heat thus introduced by the heat transmission element 13. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
The invention relates to a method for producing an optical fibre or an optical coupling-out structure for light comprising a coupling-out surface with light coupling-out structures, by means of an injection-moulding process. The light coupling-out structures are created by the laser removal of the injection-mould material, or the material of the optical fibre or coupling-out element that have already been injection moulded.
Abstract:
The invention relates to a lighting device which comprises at least one light-emitting diode (20) and at least one optical element (30), the light-emitting diode (20) and the optical element (30) being adjusted in relation to each other by means of at least one fixing pin (31, 32). The invention also relates to a method for producing the inventive lighting device. The lighting device is especially suitable for use in an automotive headlight.
Abstract:
The invention relates to a light-emitting diode arrangement comprising two light-emitting diodes (1, 2) which are mounted in an anti-parallel manner in relation to each other and a current supply which can be used to supply the light-emitting diodes (1, 2) with current, independently from each other and in the direction of conduction. The invention also relates to an optical recording device and to a method for the pulsed operation of a light-emitting diode.
Abstract:
In mindestens einer Ausführungsform des Flächenlichtleiters (1) umfasst dieser einen Grundkörper (23) mit zwei Hauptseiten (2, 3). Weiterhin weist der Flächenlichtleiter (1) eine Hauptlichtleitrichtung (x) auf, die parallel zu einer Strahlungsauskoppelseite (2) orientiert ist. Der Flächenlichtleiter (1) beinhaltet eine Vielzahl von gleichartig geformten und gleich orientierten Auskoppelstrukturen (4), die an einer der Hauptseiten (2, 3) ausgebildet sind. Weiterhin weisen die Auskoppelstrukturen (4) je mindestens eine Strukturhauptfläche (40) auf.
Abstract:
The invention relates to a method for producing an optical fibre or an optical coupling-out structure for light comprising a coupling-out surface with light coupling-out structures, by means of an injection-moulding process. The light coupling-out structures are created by the laser removal of the injection-mould material, or the material of the optical fibre or coupling-out element that have already been injection moulded.
Abstract:
A display device includes a light source, an optical waveguide element with an emission area, optical waveguide element configured to conduct light from the light source onto an emission area, and a transflective element arranged on the emission area including a first layer with at least one first subregion and at least one second subregion, the first layer configured to transmit light from emission area in the first subregion and not to transmit in the second subregion, and a second layer arranged above the first layer in the emission direction of the light, the second layer configured to transmit at least a part of the light from light source.
Abstract:
A light-emitting module is specified that comprises a light source, a carrier for said light source, and an optical element, wherein the optical element comprises dowel pins that engage in corresponding recesses in the carrier. The light-emitting module is particularly well suited for use in optical projection apparatuses and in motor vehicle projection lamps.
Abstract:
The device comprises two diodes (1,2) which are connected in antiparallel. A pulse-width modulator (8) is provided for supplying current to the light-emitting diodes in alternating directions. The diodes are preferably mounted in the same housing, and/or emit light of different wavelengths, e.g. red and blue. A luminescence-conversion material may be provided.