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    LED dental light source with variable chromaticity and method
    81.
    发明授权
    LED dental light source with variable chromaticity and method 有权

    公开(公告)号：US10257901B2

    公开(公告)日：2019-04-09

    申请号：US14475628

    申请日：2014-09-03

    Applicant: OSRAM GmbH

    Inventor： Andreas Osten ,  Jack L. Burwick

    IPC: A61B1/06 ,  F21K9/64 ,  A61C13/15 ,  H05B33/08 ,  F21Y113/13 ,  F21Y115/10 ,  F21W131/202

    Abstract: A dental light having an array of light emitting diode (LED) assemblies, at least one first LED assembly having at least one first LED element configured to emit light according to a first spectral distribution, a conversion phosphor configured to convert at least a portion of the first spectral distribution. At least one filter is fixed within said converted light, the filter configured to block at least a portion thereof. The array includes at least one second LED element configured to emit light according to a second spectral distribution, wherein light having the filtered spectral distribution is selectively emitted from said array in a first mode and from both the filtered and second spectral distributions in a second mode.

    Electronic converter and related method of operating an electronic converter
    82.
    发明授权
    Electronic converter and related method of operating an electronic converter 有权

    公开(公告)号：US10243474B2

    公开(公告)日：2019-03-26

    申请号：US15973605

    申请日：2018-05-08

    Applicant: OSRAM GmbH

    Inventor： Daniele Luccato ,  Giancarlo Pellizzari

    IPC: H05B41/24 ,  H02M3/335 ,  H02M3/337 ,  H05B33/08 ,  H02M1/42

    Abstract: An asymmetric electronic half-bridge converter includes a positive input terminal and a negative input terminal for receiving a DC voltage, and two output terminals for providing a regulated output voltage or a regulated output current. The electronic converter moreover includes a half-bridge, a transformer and a rectification and filter circuit. The half-bridge includes a first and second electronic switch, connected in series between the two input terminals, wherein a respective capacitance and a respective diode are associated with the first and second electronic switch. A first terminal of the primary winding is connected to the intermediate point between the first and second electronic switch, and a second terminal of the primary winding is connected via a first capacitor to the positive or negative input terminal. The rectification and filter circuit is connected between the secondary winding and the output terminals.

    Semiconductor lamp having a heat sink
    83.
    发明授权
    Semiconductor lamp having a heat sink 有权

    公开(公告)号：US10208944B2

    公开(公告)日：2019-02-19

    申请号：US15120070

    申请日：2015-02-04

    Applicant: OSRAM GmbH

    Inventor： Carolin Mühlbauer ,  Klaus Eckert

    IPC: F21V29/71 ,  F21V29/89 ,  F21K9/237 ,  F21V15/04 ,  F21Y115/10

    Abstract: The semiconductor lamp (1) is equipped with a heat sink (2, 3) which has a first part (2) and a second part (3) connected to each other by way of a press fit and which together delimit a receptacle (10, 12) for a driver (5), the first part (2) having an insert region (8) for insertion into the second part (3), which insert region consists of spring elements (21) that can be pushed inwards. The invention is particularly useful for retrofit lamps, in particular incandescent or halogen retrofit lamps.

    LIGHTING MODULE AND HEADLIGHT
    84.
    发明申请
    LIGHTING MODULE AND HEADLIGHT 审中-公开

    公开(公告)号：US20190049089A1

    公开(公告)日：2019-02-14

    申请号：US16056571

    申请日：2018-08-07

    Applicant: OSRAM GmbH

    Inventor： Thomas Feil ,  Martin Petzold ,  Daniel Weissenberger

    IPC: F21S45/47 ,  F21V29/70 ,  F21S41/141

    Abstract: A lighting module includes a housing, in which a circuit board having at least one lighting means is arranged. The housing has a housing opening, via which radiation from the at least one lighting means can be emitted. A heat sink is provided to dissipate heat from the circuit board. For the thermal relief of the circuit board, an additional circuit board is provided in the housing, which is fitted with electric components for the operation of the lighting module and is arranged at a distance from the circuit board.

    Lighting apparatus with conversion device
    85.
    发明授权
    Lighting apparatus with conversion device 有权

    公开(公告)号：US10203079B2

    公开(公告)日：2019-02-12

    申请号：US15118111

    申请日：2015-02-04

    Applicant: OSRAM GmbH

    Inventor： Stefan Hadrath

    IPC: F21V7/00 ,  F21V8/00 ,  G02B1/11 ,  F21S41/14 ,  F21S41/16 ,  F21S41/24 ,  F21S41/33 ,  F21S41/36 ,  F21S41/143 ,  F21S41/365 ,  F21Y115/10 ,  F21Y115/30

    Abstract: Various embodiments may relate to a lighting apparatus, including at least one primary light source for generating primary light, a reflector having two spaced-apart focal spots, a guiding optical unit disposed downstream of the at least one primary light source and serving for guiding the primary light to a first focal spot of the reflector, and a conversion device for at least partly converting the primary light into secondary light having a different wavelength which is situated at the second focal spot. The reflector has a first reflective partial region, to which the two focal spots are assigned, and a second reflective partial region, which is a partial region retroreflective for the second focal spot. The primary light emitted by the at least one primary light source is incident on the first partial region.

    Illuminating device comprising a pump radiation source
    87.
    发明授权
    Illuminating device comprising a pump radiation source 有权

    公开(公告)号：US10197228B2

    公开(公告)日：2019-02-05

    申请号：US15328905

    申请日：2015-07-20

    Applicant: OSRAM GmbH

    Inventor： Sergey Khrushchev

    IPC: F21K9/64 ,  F21V9/30 ,  F21S41/20 ,  F21S41/14 ,  F21S41/141 ,  G03B21/20 ,  F21S41/16 ,  F21Y101/00 ,  F21Y115/30

    Abstract: An illuminating device includes a pump radiation source for emitting pump radiation as a beam bundle, a phosphor element for converting the pump radiation into conversion light, and a lens system between the pump radiation source and the phosphor element, which is penetrated by the pump beam bundle, wherein the lens system has a focus and the phosphor element is arranged at the focus, and wherein furthermore a lens of the lens system has a scattering means which scattering means the pump beam bundle penetrates and is widened at the same time, so that the pump beam bundle is incident on the phosphor element in a manner widened around a focus point.

    ILLUMINATION APPARATUS AND HEADLAMP
    89.
    发明申请
    ILLUMINATION APPARATUS AND HEADLAMP 审中-公开

    公开(公告)号：US20190033399A1

    公开(公告)日：2019-01-31

    申请号：US16030881

    申请日：2018-07-10

    Applicant: OSRAM GmbH

    Inventor： Ingo Schmidt ,  Melanie Zumkley ,  Daniel Vogel

    IPC: G01R31/44 ,  F21S41/176

    Abstract: In various embodiments, an illumination apparatus is provided. The illumination apparatus includes a housing, in which at least one radiation source is fixed. A phosphor that is fastened to the housing is arranged downstream of the radiation source. The phosphor is connected to a crack detector, which is used for crack monitoring of the phosphor. A signal path is provided. The signal path connects the crack detector to an evaluation unit that is fixed to the housing. The signal path is formed by at least two contact pins and a flexible printed circuit board that is connected to the crack detector.

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