An Apparatus, a Handheld Electronic Device, and a Method for Carrying Out Raman Spectroscopy

    公开(公告)号:US20230041170A1

    公开(公告)日:2023-02-09

    申请号:US17758549

    申请日:2020-12-16

    Abstract: In an embodiment an apparatus includes at least one optoelectronic laser configured to provide excitation radiation to a sample, the excitation radiation being generated by an electric current flowing through the at least one optoelectronic laser, a transistor configured to modulate the electric current flowing through the at least one optoelectronic laser in order to switch on and off generation of the excitation radiation and a spectrometer configured to analyze Raman light scattered from the sample in response to exposing the sample to the excitation radiation, wherein the Raman light includes one or more spectral components, wherein the spectrometer includes a diffraction element configured to split the Raman light into the spectral components, and wherein the diffraction element includes at least a photonic crystal or a plasmonic Fabry Perot filter.

    Display device
    76.
    发明授权

    公开(公告)号:US11121291B2

    公开(公告)日:2021-09-14

    申请号:US16495241

    申请日:2018-03-19

    Abstract: A display device is disclosed. In an embodiment a device includes at least one optoelectronic semiconductor component configured to generate primary radiation, a plurality of pixels, wherein each pixel includes at least a first subpixel configured to generate radiation in a first spectral range and a second subpixel configured to generate radiation in a second spectral range different from the first spectral range, wherein the first and second subpixels are each assigned an active region of the semiconductor component; and a radiation conversion element arranged downstream of at least some of the active regions, wherein the radiation conversion element configured to at least partially convert the primary radiation into a secondary radiation and to radiate the secondary radiation at a narrow angle.

    Surface-Mountable Semiconductor Laser, Arrangement with Such a Semiconductor Laser and Operating Method for Same

    公开(公告)号:US20200067270A1

    公开(公告)日:2020-02-27

    申请号:US16461337

    申请日:2017-12-18

    Abstract: A surface-mountable semiconductor laser and an arrangement with such a semiconductor laser are disclosed. In one embodiment, the semiconductor laser is includes a semiconductor layer sequence having at least one generation region between a p-side and an n-side, at least two contact surfaces for external electrical contacting of the p-side and the n-side, wherein the contact surfaces are located on the same side of the semiconductor layer sequence in a common plane so that the semiconductor laser are contactable without bonding wires, at least one of a plurality of conductor rails extending from a side with the contact surfaces across the semiconductor layer sequence and a plurality of through-connections running at least through the generation region, wherein the generation region is configured to be pulse operated with time-wise current densities of at least 30 A/mm2.

    ASSEMBLY COMPRISING AN ELECTRIC COMPONENT
    78.
    发明申请

    公开(公告)号:US20190312407A1

    公开(公告)日:2019-10-10

    申请号:US16302569

    申请日:2017-05-16

    Abstract: The invention relates to an assembly comprising an electric component. The component has an electric part, a control circuit, and a capacitor. At least two lead frames are provided which are embedded into a housing. The part, the control circuit, and the capacitor are arranged on the lead frames, and the control circuit is designed to charge the capacitor and to supply the part with current from the capacitor in a clocked manner. The component has two contacts, and the component is arranged on a support. The support has an electrically conductive layer and the two contacts are connected to the layer in an electrically conductive manner. At least one first part of one lead frame is arranged at a greater distance from the electrically conductive layer than the second lead frame.

    RADIATION-EMITTING DEVICE
    79.
    发明申请

    公开(公告)号:US20190302469A1

    公开(公告)日:2019-10-03

    申请号:US16366558

    申请日:2019-03-27

    Abstract: A radiation-emitting device including a radiation source, an emission surface through which radiation from the radiation source passes during operation, wherein the emission surface includes a plurality of pixels, each pixel includes a plurality of subpixels, in plan view of the emission surface, each pixel forms a partial area of the emission surface and each subpixel forms a portion of such partial area, for each pixel, at least first subpixels are operable individually and independently of one another, and all subpixels of a pixel together make up at most 50% of the area of the pixel so that in simultaneous operation of all subpixels radiation is emitted via at most 50% of the area of the pixel.

    DRIVER CIRCUIT FOR LIGHT-EMITTING COMPONENT
    80.
    发明申请

    公开(公告)号:US20190215921A1

    公开(公告)日:2019-07-11

    申请号:US16328794

    申请日:2017-08-30

    Abstract: A driver circuit for at least one light-emitting optoelectronic component includes a control circuit having a capacitor and a control switch, wherein the control switch electrically connects to the component such that the component is supplied with current by the capacitor as a function of a switching state of the control switch, and a charging circuit having at least a first charging switch, a bias resistor and a buffer capacitor, wherein the charging circuit electrically connects to the capacitor and is configured to charge the capacitor through the bias resistor, and the buffer capacitor is linked to a connecting line between the bias resistor and the capacitor.

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