Abstract:
A microwave antenna is described, having a substrate ( 11 ), at least one resonant metallization structure ( 1 ) and at least a first and a second feed point ( 3, 4, 6, 7 ) for coupling in HF power to be radiated, said antenna being particularly suitable for surface mounting on a printed circuit board ( 20 ). The feed points ( 3, 4, 6, 7 ) are so arranged in this case that, for different positions of the antenna ( 10 ) on a printed circuit board ( 20 ), it is in each case possible to select a feed point in which case the electrical properties of the antenna ( 10 ) are at least substantially unchanged.
Abstract:
The invention relates to a mounting substrate (10) for mounting and electrically contacting at least one light emitting diode (20), a ceramic layer (40) disposed in a path of light emitted by the light emitting diode (20), wherein the ceramic layer (40) comprises a wavelength converting material, the light emitting diode (20) disposed between the ceramic layer (40) and the mounting substrate (10), a light sensor (30) disposed at the mounting substrate (10) detecting a luminous output of the light emitting diode (20) in order to control the brightness and/or the color of the light leaving the light module (1), wherein the ceramic layer (40) is only partly translucent to shield the light sensor (30) against ambient light.
Abstract:
Within lighting tiles (2), pluralities of LEDs (8) are connected to modules (6), which are interconnected using a two-wire bus (10). This bus transmits (10) both power as well as control information for driving the modules (6) and thus the LEDs (8). The bus (10) provides for reduced wiring requirements and enables a variety of lighting effects through a central controller (4).
Abstract:
The invention relates to a lighting device, particularly a lighting tile (100, 100′) for paving e.g. a floor area (1), comprising a light emitting unit and an associated control unit. The control unit is adapted to detect the presence of a first nearby object (3) and to receive wireless signals from a second nearby object, for example from an RFID-tag (2) and/or an NFC-based device, carried by the first object (3). The lighting device may for instance be used in a method for guiding passengers through a public space like an airport.
Abstract:
A microwave antenna is described, having a substrate ( 11 ), at least one resonant metallization structure ( 1 ) and at least a first and a second feed point ( 3, 4, 6, 7 ) for coupling in HF power to be radiated, said antenna being particularly suitable for surface mounting on a printed circuit board ( 20 ). The feed points ( 3, 4, 6, 7 ) are so arranged in this case that, for different positions of the antenna ( 10 ) on a printed circuit board ( 20 ), it is in each case possible to select a feed point in which case the electrical properties of the antenna ( 10 ) are at least substantially unchanged.
Abstract:
The present invention relates to a solid-state based light source, a corresponding circuitry and a method of emitting light, including one or more light source elements for generating light, a first sensor for receiving light emitted by the light source elements and ambient light and for generating a first sensor signal (S1) representing the received light, a second sensor for only receiving ambient light and for generating a second sensor signal (S2) representing the received ambient light. Moreover, the solid-state based light source comprises a control unit for receiving the first and the second sensor signals (S1, S2) and for generating control signals (Sc) for controlling the light source elements, based on the difference between the first and the second sensor signals (S1, S2), to compensate for the influence of the ambient light.
Abstract:
System for configuring and powering a wireless batteryless device, the system comprising: a wireless batteryless device (A) comprising : a built-in harvester (12) for harvesting energy from a first energy source, for example ambient energy, means for communicating wirelessly, - and an external device (B) comprising : - a second power source (16), - means (17) for converting energy supplied by the second power source into energy suitable for being harvested in the harvester of the batteryless device, means (18) for wirelessly supplying the batteryless device with the converted energy via the built-in harvester, and means for communicating with the batteryless device. The invention also relates to an external device therefore, and a method for configuring and powering a batteryless device.
Abstract:
The invention relates to a nuclear magnetic resonance imaging apparatus comprising: a main magnet (122) adapted for generating a main magnetic field; at least one radio frequency receiver coil unit (144) for acquiring magnetic resonance signals in a receiver coil radio frequency band (202) from an examined object (124); means (140) for inductively (wirelessly) supplying electric power to an electric component of the apparatus, wherein the electric component is adapted to be powered by inductively supplied electric power, wherein the power transfer frequency (200) and the higher -harmonics (206) of the power transfer frequency (200) for inductively supplying the electric power are located outside the receiver coil radio frequency band (202).
Abstract:
The present invention relates to a light sensor device comprising a substrate (18), a first light sensitive area (14, 15), and a second light sensitive area (12, 13). It is characterized in that a first optical filter device (22) assigned to said first area (14) and adapted to filter the visible light spectrum and a second optical filter device (24) assigned to said second area (12) and adapted to filter the non- visible light spectrum, preferably IR light spectrum, are provided, and said first and second light sensitive areas (12, 14) are fabricated on the same substrate (18) adjacent to each other to form a single integrated sensor component (10). The invention also relates to a lamp device (60) comprising such a light sensor device.
Abstract:
The invention describes a method of controlling a device arrangement (D), which method comprises generating at least one electrical signal (10, 11) in a remote control unit (2), converting the generated electrical signal (10, 11) into electromagnetic radiation (EM1, EM2) according to specific polarisation parameters, and detecting the electromagnetic radiation (EM1, EM2) with a detecting arrangement (R1, R2). The detecting arrangement (R1, R2) is realised to detect electromagnetic radiation (EM1, EM2) with the specific polarisation parameters to obtain an electrical signal (30, 31), which is converted into a device control signal (40, 41) and applied to a device (L1, L2, L3) of the device arrangement (D). The invention further describes a system (1) for controlling a device arrangement (D). The invention also describes a remote control interface module (3) and a remote control unit (2).