Abstract: Methods and systems for dynamic lighting systems are disclosed. The dynamic lighting system invented has minimal mechanical wear and is reacting quickly to fast changes by using magnetic power transmission moving optical elements between light sources, preferably types of LEDs or OLEDS, and objects to be illuminated. Movements of the optical elements can be either linear in up to three dimensions, tilted or on spherical tracks. Positions of the optical elements can be progressively taken and appointed.

Abstract: A lighting system contains at least one controllable first light (NL), which is connected to a first current supply (L, N), and at least one controllable emergency current light (SL), which is connected to a further emergency current supply (P, N), separate from the first current supply (L, N). All lights have respective control devices associated therewith, all control devices being connected to a common bus (D1, D2). A monitoring device (5) issues a monitoring signal corresponding to the condition of the first current supply (L, N) onto the bus (D1, D2), which monitoring signal is evaluated at least by the control device of the emergency current light (SL) for the recognition of a disruption and for activation of an emergency current operation.

Abstract: Method and device for controlling the operational performance of at least one gas discharge lamp (10). The control is effected with the aid of a controller (1) the proportional component of which is set in dependence upon an externally applied desired value (SOLL) of an operational parameter of the gas discharge lamp (10), whereby for low brightness desired values the proportional component of the controller (1) is set high, and for great brightness desired values of the gas discharge lamp (10) is set low. In this way it is possible to reliably fire the gas discharge lamp (10) even at low brightness values, without the appearance of a light flash, and at the same time to avoid instabilities in the case of high brightness values of the gas discharge lamp (10).

Abstract: Control device (3) for the operation of a load, in particular at least one gas discharge lamp (10, 15). The control device (3) is divided into a first purely software controlled control unit (3a) a second control unit (3b) realized purely in hardware. The two control units (3a, 3b) are connected with one another via a bidirectional connection line, the second control unit receiving exclusively internal operating state information (I.sub.intern) and the first control unit (3a) receiving external control information (I.sub.extern) By means of the division of the control device into a purely software controlled control unit (3a) and a control unit constructed purely of hardware (3b) the control device (3) in accordance with the invention has both a speed sufficient for rapid control procedures and also a sufficient flexibility with regard to alterations. Advantageously, the control device (3) in accordance with the invention is employed in an electronic ballast for the operation of gas discharge lamps (10, 15).

Abstract: Method for detecting the rectification effect in at least one gas discharge lamp (10) and electronic ballast for operating at least one gas discharge lamp, which recognises the appearance of the rectification effect in the gas discharge lamp (10). In order to be able to detect the appearance of the rectification effect in the gas discharge lamp (10) simply and with high sensitivity there is monitored the current (i.sub.1) flowing via a primary winding (7A), connected parallel to the gas discharge lamp (10), of a heating transformer (7A-C) or a parameter (i.sub.2, u.sub.3) dependent upon this current (i.sub.1) , and in the event that a predetermined limit value is overshot the presence of the rectification effect in the gas discharge lamp (10) is determined.

Abstract: An electronic ballast (EVG) is provided for operating at least one lamp (10), wherein a light sensor (20) for monitoring the brightness of a specific physical area (28) can be connected to the electronic ballast. A control arrangement (12) controls or regulates the brightness of the lamp (10) as a function of an actual brightness value delivered by the light sensor (20) and when the electronic ballast is put into operation automatically identifies whether a light sensor (20) is connected to the connection arrangement (18a, 18b).

Abstract: Gas discharge lamps are for regulated in a manner that is not affected by parasitic capacitances, such as line capacitances, by measuring current which passes through the lamp, calculating an active component of the measured current based on its phase in relation to a reference or by a comparison of the relative phases of the measured current and a voltage applied to the lamp, and regulating the lamp operation based on the active component.

Abstract: In accordance with the invention the circuitry arrangement comprises a central unit (5) and a plurality of peripheral units, such as control apparatuses for lamps, connected with the central unit via a data bus. These peripheral units are each connected with the data bus (1) via a coupling unit (3), each coupling unit (3) having a receiving branch for the transfer of information from the central unit (5) to the peripheral unit, and a transmission branch for the transfer of information from the peripheral unit to the central unit (5). Here, the central unit (5) sends out information in the form of a modulated a.c or pulse voltage onto the data bus. The transmission branch applies information to the data bus (1) in that the output resistance of the transmission branch is varied. Because the receiving branch in the coupling unit (3) is continuously active and the transmission branch is inactive in the case of non-sending operation, at most a very small return current is consumed in the coupling unit (3).

Abstract: There is provided a ballast for at least one gas discharge lamp havingan inverter which has two switches (S1, S2) in series, connected to a d.c. voltage source and switched with complementary timings, and a load circuit connected in parallel with one of the two switches (S1, S2) which load circuit includes a series resonant circuit (L1, C1) and the lamp (LA). Additionally there is provided a heating circuit (T, S3,R1) for current supply of the lamp coils, likewise connected to the inverter, which heating circuit includes a further periodically switchable switch (S3) for control of the heating current, whereby the heating circuit is likewise connected in parallel to one of the two switches of the inverter.

Abstract: A control system for gas discharge lamps (5) includes a fuzzy controller (7) which, for controlling the lamp current of the gas discharge lamp, generates a setting value for an inverter (3), for setting the frequency or duty ratio of the lamp current, in dependence upon an actual value of the lamp current. Further, in accordance with the invention, fuzzy logic is employed for the purpose of recognition of the lamp type of a connected gas discharge lamp (5), in that on the basis of various detected operational parameter values, during the operation of the gas discharge lamp, the lamp type of the gas discharge lamp is determined.

Abstract: There is disclosed a control arrangement for plural consumer units allocated to groups for operation by means of operating elements connected with at least one group address control transmitter. The transmitter transmits group addresses to control receivers which are connected to customer units and in which group addresses are stored during a commissioning phase, whereby after such commissioning, consumer units are connected in groups with associated control receivers according to the operation of an operating element.