摘要:
A lighting device is disclosed, which is provided for the front region of a motor vehicle, for example in a motor vehicle headlight, and which emits electromagnetic radiation during operation. The lighting device comprises at least one first primary radiation source which emits infrared radiation, and at least one second primary radiation source which emits visible light, wherein the first primary radiation source and the second primary radiation source are arranged in such a way that the second primary radiation source outshines the first primary radiation source and thus generates a color impression of the lighting device which deviates from the color impression stemming from the infrared radiation source alone.
摘要:
A lighting device is disclosed, which is provided for the front region of a motor vehicle, for example in a motor vehicle headlight, and which emits electromagnetic radiation during operation. The lighting device comprises at least one first primary radiation source which emits infrared radiation, and at least one second primary radiation source which emits visible light, wherein the first primary radiation source and the second primary radiation source are arranged in such a way that the second primary radiation source outshines the first primary radiation source and thus generates a color impression of the lighting device which deviates from the color impression stemming from the infrared radiation source alone.
摘要:
An LED array comprising at least two LED chips (2) contains a temperature sensor (3), and means are provided for regulating the operating current of the LED chips (2) as a function of the temperature detected by the temperature sensor (3). This makes it possible for the LED chips (2) to be operated for long periods at high operating current, thereby reducing the risk of thermal overload.
摘要:
A motor vehicle headlight element is specified which has at least one light-emitting diode and at least one control apparatus. The control apparatus is suitable for processing a signal which is dependent on a measurement variable and for applying a current corresponding to the signal, to the light-emitting diode. The control apparatus and the light-emitting diode are arranged on a common mount.
摘要:
A motor vehicle headlight element is specified which has at least one light-emitting diode and at least one control apparatus. The control apparatus is suitable for processing a signal which is dependent on a measurement variable and for applying a current, corresponding to the signal, to the light-emitting diode. The control apparatus and the light-emitting diode are arranged on a common mount.
摘要:
A motor vehicle headlight element is specified which has at least one light-emitting diode and at least one control apparatus. The control apparatus is suitable for processing a signal which is dependent on a measurement variable and for applying a current, corresponding to the signal, to the light-emitting diode. The control apparatus and the light-emitting diode are arranged on a common mount.
摘要:
A headlight includes a plurality of luminescence diode emitters. At least one first group of the luminescence diode emitters is arranged in a matrix having at least two columns and at least two rows, wherein in the first group the electrical connections of a first connection type of the luminescence diode emitters of a column and the electrical connections of a second connection type of the luminescence diode emitters of a row are in each case electrically connected to one another. The electrical connections of the first connection type of different columns and the electrical connections of the second connection type of different rows of the matrix are electrically insulated from one another.
摘要:
A light-emitting diode includes a carrier with a mounting face and includes a metallic basic body and at least two light-emitting diode chips affixed to the carrier at least indirectly at the mounting face, wherein an outer face of the metallic basic body includes the mounting face, the at least two light-emitting diode chips connect in parallel with one another, the at least two light-emitting diode chips are embedded in a reflective coating, the reflective coating covering the mounting face and side faces of the light-emitting diode chips, and the light-emitting diode chips protrude with their radiation exit surfaces out of the reflective coating, and the radiation exit surfaces face away from the carrier.
摘要:
A light-emitting diode arrangement having at least one light-emitting diode chip (1), each light-emitting diode chip (1) being assigned at least one optical element (4). In addition, the light-emitting diode arrangement has at least one heat-conducting element (13) which is suitable to carry away the heat generated by the light-emitting diode chip, and at least one cooling apparatus which is suitable to carry heat away from the heat-conducting element. The light-emitting diode arrangement is particularly well suited, for example, to use in motor vehicle headlamps.
摘要:
In a fiber-optic transmitting component, either an adjusting sleeve (3) or a fiber flange is provided with a polarization filter (5) and an adjustment step is performed in which the adjusting sleeve (3) or the fiber flange is connected to the housing (2) of a light-emitting device (1). An axial angular position of the adjusting sleeve (3) or of the fiber flange in relation to the housing (2) is determined during a measurement of the light output from the light-emitting device (1) that has passed through the polarization filter (5), and the adjusting sleeve (3) or the fiber flange is then fixed to the housing at this relative angular position.