A CURRENT SENSING CIRCUIT AND CORRESPONDING METHOD

    公开(公告)号:US20190025345A1

    公开(公告)日:2019-01-24

    申请号:US16069535

    申请日:2017-01-11

    Applicant: OSRAM GmbH

    Abstract: A current sensing circuit for sensing an intermittent current having a Zero Current Period includes: an amperometric transformer having a primary winding for the current to be sensed to flow therethrough and a secondary winding, a sensing resistor coupled to the secondary winding of the transformer, an offset capacitor coupled with sensing resistor between the sensing resistor and ground, and a switch element acting across the coupling of the sensing resistor and the offset capacitor, the switch element being electrically conductive during the zero current period or a fraction thereof.

    LIGHT MODULE, HEADLIGHT/SPOTLIGHT AND METHOD FOR PROVIDING POLYCHROMATIC LIGHT

    公开(公告)号:US20190024863A1

    公开(公告)日:2019-01-24

    申请号:US16029694

    申请日:2018-07-09

    Applicant: OSRAM GmbH

    Abstract: A light module for providing polychromatic light is provided. The light module includes a wavelength conversion element, a first light source for emitting a first light beam in a first wavelength range, and at least one second light source for emitting a second light beam. The element is configured to convert primary light radiated in by the first light beam into a first conversion light and to convert primary light radiated in by the at least one second light beam into a second conversion light. At least the first conversion light and the second conversion light together form a third light beam. The module further includes a control unit configured for predefining a first luminous intensity for the first light source and/or a second luminous intensity for the at least one second light source depending on a measurement of the light color of the third light beam.

    Projection lamp for illumination
    93.
    发明授权

    公开(公告)号:US10183613B2

    公开(公告)日:2019-01-22

    申请号:US15497251

    申请日:2017-04-26

    Applicant: OSRAM GmbH

    Abstract: A projection lamp for illumination includes a pump radiation unit configured to emit pump radiation, a phosphor element for the at least partial conversion of the pump radiation into a conversion light, and a micromirror array having a multiplicity of micromirror actuators which are arranged in the form of a matrix. The projection lamp is set up such that, during operation, the phosphor element is irradiated by the pump radiation from the pump radiation unit. The conversion light which is thereupon emitted by the phosphor element at least partially makes up an illumination light, which illumination light is guided for adjusting a light distribution over the micromirror actuators. The micromirror actuators are illuminated inhomogeneously with the illumination light at respective times to support the light distribution that is adjusted using the micromirror array.

    LIGHT-BASED VEHICLE POSITIONING FOR MOBILE TRANSPORT SYSTEMS

    公开(公告)号:US20180350098A1

    公开(公告)日:2018-12-06

    申请号:US15779608

    申请日:2016-12-05

    CPC classification number: G06T7/70

    Abstract: Techniques and architecture are disclosed for mobile transport systems configured to determine vehicle positions within an area using light-based communication signals. The system includes a plurality of luminaires located in an area and configured to transmit luminaire position data recognizable by a sensor disposed on a vehicle. The sensor receives an image of a luminaire including a light-based communication signal encoded with luminaire position data. Luminaire position data can be combined with luminaire layout information to determine a known location of the luminaire. A vehicle position relative to the known luminaire location can be determined based on mathematical relationships. Vehicle orientation relative to the area can be determined based an asymmetric fiducial pattern or multiple known luminaire locations. The system can combine a vehicle position relative to a known luminaire location with vehicle orientation relative to the area to determine a vehicle position relative to the area.

    SYSTEM AND METHOD FOR DETERMINING THE POSITION OF A MOBILE WARNING POST

    公开(公告)号:US20180324739A1

    公开(公告)日:2018-11-08

    申请号:US15775430

    申请日:2016-10-19

    Applicant: OSRAM GmbH

    Inventor: Henry Feil

    CPC classification number: H04W64/00 H05B37/0272

    Abstract: A system for ascertaining the position of a mobile beacon comprising at least one first and at least one second lighting device, each comprising a communication module for setting up a data network between the at least one first and at least one second lighting device by means of a wireless communication link, the mobile beacon, which is configured to emit an identification signal with a beacon identification number unique within the system, wherein the respective communication modules of the at least one first and at least one second lighting device are configured to ascertain a respective signal strength at which the identification signal is receivable by the respective communication module. The mobile beacon has a timer and is configured to transmit, in addition to the beacon identification number, a counter reading of the timer corresponding to a time of emission of the first identification signal.

    Lighting device, corresponding lamp and method

    公开(公告)号:US10119676B2

    公开(公告)日:2018-11-06

    申请号:US15250988

    申请日:2016-08-30

    Applicant: OSRAM GmbH

    Abstract: A lighting device, which may be used e.g. to produce motor vehicle lamps, may include a light radiation source, e.g. a LED source, having a light-permeable body arranged facing source for propagating light radiation along a longitudinal axis. The light-permeable body includes a collimator exposed to light radiation source and adapted to collect light radiation and to inject it into light-permeable body, a tapered portion coupled to collimator for receiving light radiation and directing it towards an output end, a distal portion acting as an emission filament, coupled to the output end of tapered portion, with an output mirror having a shank portion extending in said distal portion and a head portion, the output mirror reflecting light radiation radially from longitudinal axis and proximally towards said light radiation source.

    LUMINANCE REGULATION IN EDGE REGIONS
    100.
    发明申请

    公开(公告)号:US20180297510A1

    公开(公告)日:2018-10-18

    申请号:US15766400

    申请日:2016-09-07

    Applicant: OSRAM GmbH

    Abstract: According to the present disclosure, a method for operating an illumination apparatus is provided. The method has at least two light-emitting devices, which are arranged next to one another separated by a gap and each have a multiplicity of light-emitting elements, by individually driving all light-emitting elements of each light-emitting device, measuring a gap width of the gap and/or a luminance in the gap, and controlling or regulating in each case a luminance of one or more of the light-emitting elements which are arranged directly at the gap in dependence on the gap width and/or on the luminance in the gap.

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