Abstract: The invention relates to an illuminant (23) and a socket (20) for a lamp (15). The features of the socket (20) can be implemented also independently of the features of the illuminant (23). The illuminant (23) has a preferably planar illumination surface (24). One or more semiconductor lighting elements are arranged within an illuminant housing (30). The illuminant connection device (70) required for mechanical and electrical connection to the socket (20) is provided on the rear face (66) of the illuminant (23), said rear face (66) lying opposite the illumination surface (24). The dimensions of the illuminant are preferably greater than the dimensions of the socket (10) such that the illuminant (23) fully covers the socket when looking onto the illumination surface (24), resulting in a particularly appealing look. Said socket and illuminant (23) modularly achieve large total illumination surfaces in a lamp (15) and an appealing overall appearance in a very simple manner.

Abstract: The invention relates to an illuminant (23) and a socket (20) for a lamp (15). The features of the socket can be implemented also independently of the features of the illuminant (23). The socket has supply terminal areas on multiple sides of the socket housing such that the socket (20) can be selectively supplied with electricity and wired from different sides or also simultaneously from multiple sides. Independently of the number and the arrangement of the supply terminal areas (94), multiple electrical supply terminals (95) having the same polarity are provided on the socket (20). Said supply terminals (95) having the same polarity are electrically short-circuited by means of a shorting connector (116), in particular two identical shorting connectors (116) being arranged in the socket housing. Said socket (20) and illuminant (23) modularly achieve large total illumination surfaces in a lamp (15) and an appealing appearance in a very simple manner.

Abstract: The invention relates to an illuminant (23) and a socket (20) for a lamp (15). The features of the socket can be implemented also independently of the features of the illuminant (23). The socket has supply terminal areas on multiple sides of the socket housing such that the socket (20) can be selectively supplied with electricity and wired from different sides or also simultaneously from multiple sides. Independently of the number and the arrangement of the supply terminal areas (94), multiple electrical supply terminals (95) having the same polarity are provided on the socket (20). Said supply terminals (95) having the same polarity are electrically short-circuited by means of a shorting connector (116), in particular two identical shorting connectors (116) being arranged in the socket housing. Said socket (20) and illuminant (23) modularly achieve large total illumination surfaces in a lamp (15) and an appealing appearance in a very simple manner.

Abstract: The invention relates to an illuminant (23) and a socket (20) for a lamp (15). The features of the socket (20) can be implemented also independently of the features of the illuminant (23). The illuminant (23) has a preferably planar illumination surface (24). One or more semiconductor lighting elements are arranged within an illuminant housing (30). The illuminant connection device (70) required for mechanical and electrical connection to the socket (20) is provided on the rear face (66) of the illuminant (23), said rear face (66) lying opposite the illumination surface (24). The dimensions of the illuminant are preferably greater than the dimensions of the socket (10) such that the illuminant (23) fully covers the socket when looking onto the illumination surface (24), resulting in a particularly appealing look. Said socket and illuminant (23) modularly achieve large total illumination surfaces in a lamp (15) and an appealing overall appearance in a very simple manner.

Abstract: A method for driving a high-pressure gas discharge lamp of a projector system, which is suitable to produce and to supply to a light valve device during a projection interval (4) a light beam of a basic color which is selected from several basic colors (G, R, B). The lamp is driven by a lamp current. During said projection interval light valves of the light valve device are controlled in a pulse width modulation manner to have each valve provide a respective wanted light integral over said projection interval. During at least one of a number of successive projection intervals associated with one basic color a magnitude of the lamp current is temporarily reduced for at least a time that all light valves can be controlled for said one basic color.

Abstract: The invention relates to an OLED device (1) comprising a light emitting layer stack (3) on top of a substrate (2) encapsulated by an encapsulating cover (4), where at least the edges of the substrate (2) and the encapsulating cover (4) are covered with a protection cover (5) made of a moldable material and to an OLED system (10) comprising at least one OLED device (1) and at least one electronic board (81, 82) connected to the at least one OLED device (1) by suitable connectors (85), preferably further comprising a cooling body (9) thermally connected to the OLED device (1). The invention further relates to a method to manufacture an OLED device (1) or an OLED system (10) comprising the step of applying a protection cover (5) to the OLED device (1) or the OLED system (10) by a plastic molding technique to at least partly cover the OLED device (1) or the OLED system (10).

Abstract: The invention relates to an OLED device (1) comprising a light emitting layer stack (3) on top of a substrate (2) encapsulated by an encapsulating cover (4), where at least the edges of the substrate (2) and the encapsulating cover (4) are covered with a protection cover (5) made of a moldable material and to an OLED system (10) comprising at least one OLED device (1) and at least one electronic board (81, 82) connected to the at least one OLED device (1) by suitable connectors (85), preferably further comprising a cooling body (9) thermally connected to the OLED device (1). The invention further relates to a method to manufacture an OLED device (1) or an OLED system (10) comprising the step of applying a protection cover (5) to the OLED device (1) or the OLED system (10) by a plastic molding technique to at least partly cover the OLED device (1) or the OLED system (10).

Abstract: The invention describes a method of driving a discharge lamp (1), wherein a blackening value (N) is determined, which blackening value (N) represents a level of blackening of the interior of the lamp (1), and a recovery parameter (2, T) is calculate based on the blackening value (N). When the lamp power is increased above the saturation power level, the lamp (1) is driven according to the recovery parameter (2, T) for the duration of a specific recovery time. The invention further describes a driving arrangement (70, 70?), and a projector system (10) comprising a high-pressure discharge lamp (1) and such a driving arrangement (70, 70?).

Abstract: A method for driving a high-pressure gas discharge lamp of a projector system, which is suitable to produce and to supply to a light valve device during a projection interval (4) a light beam of a basic color which is selected from several basic colors (G, R, B). The lamp is driven by a lamp current. During said projection interval light valves of the light valve device are controlled in a pulse width modulation manner to have each valve provide a respective wanted light integral over said projection interval. During at least one of a number of successive projection intervals associated with one basic color a magnitude of the lamp current is temporarily reduced for at least a time that all light valves can be controlled for said one basic color.

Abstract: A method for driving a high-pressure gas discharge lamp of a projector system, which is suitable to produce and to supply to a light valve device during a projection interval (4) a light beam of a basic color which is selected from several basic colors (G, R, B). The lamp is driven by a lamp current. During said projection interval light valves of the light valve device are controlled in a pulse width modulation manner to have each valve provide a respective wanted light integral over said projection interval. During at least one of a number of successive projection intervals associated with one basic color a magnitude of the lamp current is temporarily reduced for at least a time that all light valves can be controlled for said one basic color.

Abstract: A method for operating a projection system (1) is described, wherein a brightness level (B1, B2, B3, B4, B5, B6) in an image (IM) is represented by the total length of a number of light switch-on phases within a particular image cycle (VT). A high pressure discharge lamp (2) of the projection system (1) is operated via a lamp driver with an essentially square-wave alternating current (IL) SO that an overshoot sequence (0), which occurs in the alternating current (IL) after a current zero crossing during operation of the high pressure discharge lamp (2), has a frequency so high that for each possible brightness level at least one full period (P) of the overshoot sequence (0) lies essentially within a light switch-on or switch-off phase (ts) following the zero crossing. A projection system (1) and a lamp driver (10) for a high pressure discharge lamp (2) in such a projection system (1) are also described.

Abstract: The invention describes a method of shutting down a high pressure discharge lamp (1) in which a pair of electrodes (2) are disposed in an arc tube (3). This method comprises the steps of reducing the lamp power (PA) to a reduced operation level that enables the maintenance of an arc discharge between the electrodes (2) in a transition state from a lighting state to an extinguished state; driving the lamp (1) at the reduced operation level such that that the lamp (1) cools down; monitoring the lamp voltage (U) during this lamp power reduction process and during driving of the lamp (1) at the reduced operation level with regard to a defined discharge process stability criteria and increasing the lamp power (PA) if the discharge process stability criterion is not satisfied; completely shutting down the lamp power (PA) after sufficient duration to allow the lamp (1) to cool down to a state in which the gas pressure is such that the lamp (1) could be reignited shortly after being extinguished.

Abstract: The invention describes a method of driving a discharge lamp (1), wherein a blackening value (N) is determined, which blackening value (N) represents a level of blackening of the interior of the lamp (1), and a recovery parameter (2, T) is calculate based on the blackening value (N). When the lamp power is increased above the saturation power level, the lamp (1) is driven according to the recovery parameter (2, T) for the duration of a specific recovery time. The invention further describes a driving arrangement (70, 70), and a projector system (10) comprising a high-pressure discharge lamp (1) and such a driving arrangement (70, 70).

Abstract: A method for driving a high-pressure gas discharge lamp of a projector system, which is suitable to produce and to supply to a light valve device during a projection interval (4) a light beam of a basic color which is selected from several basic colors (G, R, B). The lamp is driven by a lamp current. During said projection interval light valves of the light valve device are controlled in a pulse width modulation manner to have each valve provide a respective wanted light integral over said projection interval. During at least one of a number of successive projection intervals associated with one basic color a magnitude of the lamp current is temporarily reduced for at least a time that all light valves can be controlled for said one basic color.

Abstract: A projection system and a method for operating a discharge lamp are described. The protection system comprises a discharge lamp 12 and driving electronics 14. The color wheel 18 serves as color filter for filtering light 16 emitted from lamp 12 to generate a light sequence 20 with different colors in sequential color time periods 22, 22a. In between color time periods 22, 22a, spoke time periods 24, 24a are arranged. The driving electronics provide a lamp current I with superimposed first current pulses, which are generated in at least one of the color time periods 22, 22a. In order to allow greater flexibility and be able to achieve stable arc operation and constant color point over lamp lifetime, the driving electronics 14 further provide second current pulses superimposed on the lamp current. The second current pulses are generated during at least one of the spoke time periods 24, 24a.

Abstract: The invention describes a method of driving a discharge lamp (1) in a projection system (10), wherein, in a feed-forward control process, system status data (SDL, SDF, SDV) comprising static information pertaining to the design of the system and/or dynamic information pertaining to the projection system and/or dynamic information pertaining to the lamp operation are obtained. Based on the system status data (SDL, SDF, SDV), a momentary target light waveshape (LWT, LWT?) required by the projection system (10) and a waveshape correcting function are determined. Subsequently, the actual current (I) of the discharge lamp (1) is controlled regulated according to a momentary required waveshape (RW) which is determined based on the target light waveshape (LWT, LWT?) and the waveshape correcting function. Moreover the invention describes an appropriate driving unit (11) for driving a discharge lamp (1) and a projection system (10), comprising such a driving unit (11).

Abstract: A projection system and a method for operating a discharge lamp are described. The protection system comprises a discharge lamp 12 and driving electronics 14. The color wheel 18 serves as color filter for filtering light 16 emitted from lamp 12 to generate a light sequence 20 with different colors in sequential color time periods 22, 22a. In between color time periods 22, 22a, spoke time periods 24, 24a are arranged. The driving electronics provide a lamp current I with superimposed first current pulses, which are generated in at least one of the color time periods 22, 22a. In order to allow greater flexibility and be able to achieve stable arc operation and constant color point over lamp lifetime, the driving electronics 14 further provide second current pulses superimposed on the lamp current. The second current pulses are generated during at least one of the spoke time periods 24, 24a.

Abstract: A method for operating a projection system (1) is described, wherein a brightness level (B1, B2, B3, B4, B5, B6) in an image (IM) is represented by the total length of a number of light switch-on phases within a particular image cycle (VT). A high pressure discharge lamp (2) of the projection system (1) is operated via a lamp driver with an essentially square-wave alternating current (IL) SO that an overshoot sequence (O), which occurs in the alternating current (IL) after a current zero crossing during operation of the high pressure discharge lamp (2), has a frequency so high that for each possible brightness level at least one full period (P) of the overshoot sequence (O) lies essentially within a light switch-on or switch-off phase (ts) following the zero crossing. A projection system (1) and a lamp driver (10) for a high pressure discharge lamp (2) in such a projection system (1) are also described.