Headlight with anti-condensation protection device

    公开(公告)号:US11965636B2

    公开(公告)日:2024-04-23

    申请号:US17770443

    申请日:2020-11-11

    申请人: ZKW Group GmbH

    摘要: The invention relates to a headlight (1), comprising a headlight housing (10) with a light exit opening (12), which is closed by means of a cover plate (11), at least one LED light source (21), which is arranged in at least one light module (20) positioned in the headlight housing (10) for generating a specified light distribution in front of the headlight (1), as well as a condensation protection device (30) with at least one air duct (40) for guiding air (41), as well as with at least one radiation emitter (60), wherein the at least one air duct (40) has an air entry opening (42) and at least one air exit opening (43), and the air exit opening (43) preferably faces the cover plate (11), as well as the air (41) guided in the air duct (40) can be heated up by means of the thermal radiation generated by the radiation emitter (60). The at least one radiation emitter (60) is arranged within the air duct (40) in the region of the air entry opening (42), wherein the air duct (40) is made of an infrared radiation-reflecting as well as light-impermeable wall material (45), and the air duct (40) has at least one curved longitudinal axial section (50) with a radius of curvature (51) and an angle of curvature (52) between the air entry opening (42) and the air exit opening (43).

    Headlight apparatus
    4.
    发明授权

    公开(公告)号:US11203283B2

    公开(公告)日:2021-12-21

    申请号:US16768873

    申请日:2018-11-13

    申请人: MAXELL, LTD.

    摘要: A headlight apparatus configured to irradiate illumination light onto a road surface on which a vehicle travels includes a visible radiation lighting unit and a projector lens. The visible radiation lighting unit generates illumination light. The projector lens is provided on an optical axis of the visible radiation lighting unit, and is configured to distribute and project the illumination light irradiated from the visible radiation lighting unit. The visible radiation lighting unit has an LED, a liquid crystal display panel, and a shutter. The LED emits light. The liquid crystal display panel controls light distribution of the illumination light emitted from the LED. The shutter is provided between the liquid crystal display panel and the projector lens, and is configured to shield the liquid crystal display panel from solar light that enters through the projector lens.

    Methods and apparatus for intrinsically safe laser sourced illumination

    公开(公告)号:US11067241B2

    公开(公告)日:2021-07-20

    申请号:US14925328

    申请日:2015-10-28

    发明人: Vikrant R. Bhakta

    摘要: Intrinsically safe laser sourced illumination. A system for illumination is disclosed, including a plurality of laser illumination sources configured to transmit laser beams; a dichroic mirror spaced from the plurality of laser illumination sources and having an aperture configured to allow the laser beams to pass through the dichroic mirror, the remaining surfaces of the dichroic mirror configured to reflect the laser beams; a phosphor element spaced from the dichroic mirror and coated with a substance to fluoresce when struck by the laser beams and configured to disperse the laser beams and to output combined light that includes fluorescent light and the dispersed laser beams; and an illumination output arranged to receive the combined light from the phosphor element and to output illuminating light containing both the fluorescent light and the dispersed laser beams. Methods are also disclosed.

    Illumination Device for a Motor Vehicle

    公开(公告)号:US20210025561A1

    公开(公告)日:2021-01-28

    申请号:US16966619

    申请日:2019-01-14

    发明人: Victor ORLINSKIY

    摘要: An illumination device for a motor vehicle includes a first light source and a scanner, wherein, in the switched-on state of the first light source, light coming from same is incident upon the scanner and the scanner performs a scanning movement, by which the beam path of the light from the first light source is modified after passing via the scanner and a moving first light spot is thereby generated, with which a first lighting function is provided, which represents an illumination of a surrounding area of the motor vehicle with visible light. A conversion element is arranged in the beam path of the light from the first light source after passing via the scanner, which converts the light that is incident upon the element into white light. One or more second light sources are provided, wherein, in the switched-on state of a respective second light source, light coming from same is incident upon the scanner and the scanner performs a scanning movement, by which the beam path of the light from the respective second light source is modified after passing via the scanner, without encountering a conversion element provided in the illumination device, and a moving second light spot is thereby generated, with which a respective second lighting function is provided.

    Lamp unit and vehicular headlamp
    9.
    发明授权

    公开(公告)号:US10883692B2

    公开(公告)日:2021-01-05

    申请号:US16750455

    申请日:2020-01-23

    发明人: Tatsuma Kitazawa

    摘要: A lamp unit includes a light source including a first light emitting element that emits visible light and a second light emitting element that emits infrared light, and a rotating reflector that rotates about a rotational axis while reflecting visible light and infrared light emitted from the light source. The light source is configured such that part of the second light distribution pattern overlaps with the first light distribution pattern and such that a region of the second light distribution pattern, which does not overlap with the first light distribution pattern, is provided on the side closer to a middle region in front of the vehicle with respect to the first light distribution pattern.

    MITIGATION OF PERCEIVED REDNESS OF INFRARED LIGHT

    公开(公告)号:US20200333517A1

    公开(公告)日:2020-10-22

    申请号:US16852153

    申请日:2020-04-17

    摘要: An infrared illumination and detection system can include an infrared light source that can emit infrared light having a first wavelength. A visible light source positioned adjacent the infrared light source can emit visible light that overlaps the emitted infrared light. An infrared detector assembly, positioned adjacent the infrared light source and the visible light source, can include a wavelength-sensitive filter that can block wavelengths away from the first wavelength. The infrared detector assembly can include a sensor that can sense light at the first wavelength. The emitted infrared light can appear red when viewed by the human eye in the absence of the emitted visible light. The emitted visible light can optionally be sufficiently bright so as to substantially eliminate viewed redness when the infrared light and the visible light are viewed, together, by the human eye. Alternatives to reduce or eliminate the perceived redness are also provided.