摘要:
A method of combining LEDs in a packaging unit includes determining a color locus of a multiplicity of LEDs, classifying the LEDs into a plurality of different color locus ranges, each LED classified into a color locus range comprising the determined color locus of the respective LED, arranging the LEDs in the packaging unit such that the packaging unit contains a plurality of successive sequences respectively of a plurality of LEDs, wherein each sequence respectively has exactly one LED from each of the color locus ranges, and the LEDs of the different color locus ranges are respectively arranged in the same order within the sequences.
摘要:
A method of arranging a multiplicity of LEDs in packaging units includes defining a desired range for at least one photometric measurement variable for each of the packaging units; selecting an LED from the multiplicity of LEDs not yet arranged in one of the packaging units; measuring the at least one photometric measurement variable for the selected LED; equipping one of the packaging units containing fewer than N−1 LEDs with the selected LED; storing a measured value and a position of the selected LED in the packaging unit in a memory; repeating until the packaging units are equipped with N−1 LEDs; repeating and calculating the average value of the photometric measurement variable, equipping a packaging unit for which the calculated average value of the variable lies in a defined range with the selected LED; and storing the measured value and the position of the selected LED.
摘要:
An optical lighting device includes a radiation detector, a first light source and a second light source. The radiation detector includes a semiconductor chip and an optical filter, and has a spectral sensitivity distribution. The first light source generates white radiation. The second light source generates monochrome radiation in the visible spectral range, wherein radiation emitted by the first light source and radiation emitted by the second light source are superimposed to yield mixed radiation which includes a wavelength spectrum. The wavelength spectrum of the mixed radiation is adapted to the spectral sensitivity distribution of the radiation detector.
摘要:
An array of light-emitting diodes in LED chips, which can be turned on and off individually or in groups by means of a circuit, is provided with a device for homogenizing a light beam emitted by the turned-on LED chips. This device can be a conversion plate, a potting compound comprising a converter material or scattering particles, or a device for beam shaping comprising a plurality of micro-optics. The light source is particularly suited for headlights, for example in AFS applications.
摘要:
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.
摘要:
An illumination device comprising a connection carrier (1), at least one light-emitting diode (10), an electrically insulating layer (3) and a fixing device (4) is specified. The connection carrier (1) has a first main area (1a) and a second main area (1b) remote from the first main area. The light-emitting diode (10) is fixed on the first main area (1a) of the connection carrier (1). The electrically insulating layer (3) is fitted to the second main area (1b) of the connection carrier (1) and projects laterally beyond the second main area (1b) of the connection carrier (1). The fixing device (4) is suitable for fixing the illumination device to a mounting area (2a) of a carrier (2), wherein the electrically insulating layer (3) is arranged between the second main area (1b) of the connection carrier (1) and the mounting area (2a) of the carrier (2). Furthermore, the fixing device (4) presses the connection carrier (1) against the mounting area (2a). The pressure exerted in this way is used to effect a fixing of the insulating layer (3) between the second main area (1b) of the connection carrier (1) and the mounting area (2a). The fixing device (4) is connected to an optical element (8), which optically influences the light generated by the light-emitting diode (10) during operation.
摘要:
A headlight with a predetermined emission characteristic. This headlight has a light source, which is followed by an optical apparatus in an emission direction, with a primary optics element with a light inlet and a light outlet being arranged between the light source and the optical apparatus. The formation of a desired emission characteristic comprises deliberate reflections in the primary optics element, that is to say the primary optics element is designed such that desired characteristics of the light beam are formed within the primary optics element by deliberate reflections on specially shaped reflective surfaces of the primary optics element, so that it is possible to produce an emission characteristic which corresponds to the predetermined emission characteristic of the lighting means, essentially by projecting a real or imaginary surface, which the light beam strikes, with an optical apparatus.
摘要:
An optical lighting device includes a radiation detector, a first light source and a second light source. The radiation detector includes a semiconductor chip and an optical filter, and has a spectral sensitivity distribution. The first light source generates white radiation. The second light source generates monochrome radiation in the visible spectral range, wherein radiation emitted by the first light source and radiation emitted by the second light source are superimposed to yield mixed radiation which includes a wavelength spectrum. The wavelength spectrum of the mixed radiation is adapted to the spectral sensitivity distribution of the radiation detector.
摘要:
An optoelectronic component with a desired color impression in the switched-off state includes, in particular, a semiconductor layer sequence with an active region, that during operation radiates electromagnetic radiation with a first spectrum, and a wavelength conversion layer that is disposed downstream from the semiconductor layer sequence in the beam path of the electromagnetic radiation with the first spectrum, and that at least partially converts a subspectrum of the electromagnetic radiation with the first spectrum into electromagnetic radiation with a second spectrum, and a filter layer that reflects at least a part of the radiation incident from outside onto the optoelectronic component.
摘要:
An optical element comprises a radiation exit face for a light-emitting diode, said optical element being suitable for producing a radiation characteristic that breaks rotational symmetry, and a light-emitting diode comprising such an optical element, and an LED arrangement comprising a plurality of light-emitting diodes arranged on a carrier, wherein each of the light-emitting diodes is associated with its own optical element, which is arranged and configured such that a radiation characteristic of the respective light-emitting diode is formed with broken rotational symmetry, and wherein the optical elements are similarly implemented.