Light conversion module with improved contrast

    公开(公告)号:US10260695B2

    公开(公告)日:2019-04-16

    申请号:US16064967

    申请日:2016-12-12

    摘要: The invention describes a light conversion module (100) comprising a transparent substrate (120), a conversion layer (110) attached to a light exit side of the substrate (120), wherein the conversion layer (110) is arranged to convert a part of laser light (10) of a first wavelength range entering the substrate (120) via a light entrance side to converted laser light (20) of a second wavelength range different from the first wavelength range, and to transmit another part of the laser light (10), such that a mixture of the transmitted laser light (15) and of a part of the converted laser light (20) leaves the conversion layer (110) in forward direction opposite to the side where the conversion layer (110) is attached to the light exit side of the substrate (120), and wherein the substrate (120) is arranged such that converted laser light (20) entering the substrate via the light exit side is inhibited to re-enter the conversion layer (110) via the light exit side by arranging a thickness of the substrate (120) perpendicular to the light exit side such that the converted laser light (20) entering the substrate which is totally reflected at the light entrance side of the substrate (120) does not hit the conversion layer (110) after one total reflection at the light entrance side. The invention further describes a laser-based light source (200), especially an automotive headlight, comprising such a light conversion module (100). The invention further relates to a method of manufacturing such a light conversion module (100).

    Automotive lamp
    64.
    发明授权

    公开(公告)号:US10247381B2

    公开(公告)日:2019-04-02

    申请号:US14824556

    申请日:2015-08-12

    摘要: An automotive lamp includes: a light source; a light emitting member that receives light from the light source and emits light; and a support member that supports the light emitting member. The support member includes a translucent light emitting member accommodating unit. The light emitting member accommodating unit includes a recess in which the light emitting member is accommodated. A light incidence surface and side surfaces of the light emitting member are in contact with the light emitting member accommodating unit in a state in which the light emitting member is accommodated in the recess.

    ILLUMINATION DEVICE FOR EMITTING ILLUMINATION LIGHT

    公开(公告)号:US20190032878A1

    公开(公告)日:2019-01-31

    申请号:US16074444

    申请日:2016-12-02

    申请人: OSRAM GmbH

    摘要: An illumination device for emitting illumination light, comprising: a light-emitting diode (LED) for emitting LED radiation, a laser for emitting laser radiation, and a luminescent element for at least partial conversion of the LED radiation and the laser radiation into conversion light, which forms at least part of the illumination light. The LED, the laser and the luminescent element are arranged relative to one another in such a way that during operation of the illumination device, on an incidence face of the luminescent element, respectively in a time integral, the LED irradiates an LED irradiation area with the LED radiation and the laser irradiates a laser irradiation area with the laser radiation. The laser irradiation area has at least one intersection with the LED irradiation area.

    Lens for lighting device for motor vehicles

    公开(公告)号:US10190741B2

    公开(公告)日:2019-01-29

    申请号:US15446529

    申请日:2017-03-01

    申请人: VALEO VISION

    摘要: Lens for a lighting device of a motor vehicle includes a rear face designed to be oriented toward a light source of the lighting device, and a convex front face designed to be oriented toward the roadway being illuminated. The lens has a median vertical plane designed to be substantially orthogonal to the roadway, the front face having a first zone of diffusion with microstructures adapted to diffuse the light emitted by the light source, the first zone of diffusion extending in the median vertical plane. The front face furthermore includes at least two second zones of diffusion each one having microstructures adapted to diffuse the light emitted by the light source, the two second zones of diffusion being situated on either side of the median vertical plane. The microstructures of the two zones of diffusion have a depth absolutely greater than the depth of the microstructures of the first zone of diffusion.