Abstract:
The device has at least one glass plate (3) with a light outlet surface (6) and several three-dimensional structures (5) in the form of hollow shapes in the glass plate. At least one light source (4) is arranged on at least one lateral surface of the glass plate. A reflective or diffusing film is provided on the surface (9) of the glass plate opposite the light outlet surface and at least partly on the sides only near the light source(s).
Abstract:
The invention relates to an LED module comprising a substrate (1) with a good thermal conductivity, on whose surface one or more radiation-emitting semiconductor elements (2) is/are fixed and whose underside is fixed to a support body (3) with a high thermal capacity. The component fixing element (4) placed between the semiconductor elements (2) and the substrate (1) and the substrate fixing element (5) placed between the substrate (1) and the support body (3) have a good thermal conductivity. The invention also relates to a method for producing the LED module, according to which metal surfaces that are suitable for use as etching masks improve the application of the current required during anodic bonding and at the same time are used as contact surfaces for contacting the radiation-emitting semiconductor elements (2). The invention further relates to the use of the LED module. The advantage of said inventive LED module is that the semiconductor components can be supplied with a higher current, as a result of the high thermal capacity of the support body.
Abstract:
The invention relates to a lighting device which comprises a radiation-emitting front and a plurality of light sources (R, G, B). The inventive lighting device is characterized in that the plurality of light sources (R, G, B) are subdivided into light source groups (LG) and the light source groups (LG) are disposed on the grid points of a first regular grid (3).
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:
Es wird eine Beleuchtungsvorrichtung zur Allgemeinbeleuchtung angegeben, mit wenigstens einer Lichtquelle (1) und einer Umlenkanordnung (2). Die Umlenkanordnung (2) ist dazu ausgebildet, die von der Lichtquelle (1) emittierte Strahlung zur Ausleuchtung eines Raumes (3) umzulenken, wobei die Lichtquelle (1) und die Umlenkanordnung (2) räumlich voneinander separiert im Raum (3) angeordnet sind, und wobei die Lichtquelle (1) und die Umlenkanordnung (2) in verstellbaren Winkeln zueinander angeordnet sind zur Ausleuchtung unterschiedlicher Bereiche des Raumes (3).
Abstract:
Es wird eine Leuchte (10) angegeben, mit – einem Gehäusekörper (1), – zumindest einer Leuchtdiodenanordnung (2), die am Gehäusekörper (1) mechanisch befestigt und elektrisch angeschlossen ist, – einer Haltevorrichtung (3), an der der Gehäusekörper (1) mechanisch befestigt und elektrisch angeschlossen ist, wobei – der Gehäusekörper (1) an der Haltevorrichtung (3) um eine erste Drehachse (4) drehbar gelagert ist.
Abstract:
Es wird ein Lichtquellenmodul mit einem Träger (1) mit zumindest einer lichtemittierenden Diode (2), die im Betrieb Licht entlang einer Abstrahlrichtung (9) abstrahlt, mit einem ersten elektrischen Anschlusselement (3) und mit einem zweiten elektrischen Anschlusselement (4) angegeben, wobei das erste und/oder das zweite elektrische Anschlusselement (3, 4) relativ zur zumindest einen lichtemittierenden Diode (2) um eine Drehachse (99) drehbar gelagert ist und das erste und zweite elektrische Anschlusselement (3, 4) entlang der Drehachse (99) angeordnet sind. Weiterhin wird eine Lichtquelle mit zumindest zwei Lichtquellenmodulen angegeben.
Abstract:
The device has a light emitting component (1) arranged on a cooling body (3) and comprising a carrier plate (2) e.g. ceramic carrier, on which LEDs (4, 5) are arranged adjacent to each other. The LEDs emit light with intensities during operation and with warm-white light impressions, where the white light impressions are different from each other and the intensities are controlled. The light emitting component has an optical element (6) jointly downstream to the LEDs. The LEDs are not separated from each other by the optical element in an observable manner.
Abstract:
The lighting device has two light-emitting semiconductor components (1, 2) for emitting light with respective intensities and white light effects, where each component has a set of LEDs. The two semiconductor components are arranged on a radiator box (3) and a secondary lens element. The two light effects are different from each other. The secondary lens element has optically clear sub-areas surrounded by optically unclear sub-areas. The optically clear sub-areas are downstream to the two semiconductor components in a main radiation direction.
Abstract:
The semiconductor body has two radiation-generating active layers, where each layer has a forward voltage (Uled). The active layers are adjusted to an operating voltage (Ub) such that a voltage (Uw) dropping at a series resistor formed in series to the active layers is larger as a voltage (Uh) dropping at the semiconductor body. The voltage (Uw) is smaller than the smallest forward voltage dropping in the semiconductor body.