• 专利标题: LIGHTING APPARATUS FOR VEHICLES
  • 申请号: US15506033
    申请日: 2015-08-12
  • 公开(公告)号: US20170307165A1
    公开(公告)日: 2017-10-26
  • 发明人: Michael Schöne
  • 申请人: Hella KGaA Hueck & Co.
  • 优先权: DE102014112937.7 20140909
  • 国际申请: PCT/EP2015/068582 WO 20150812
  • 主分类号: F21S8/10
  • IPC分类号: F21S8/10 G02B27/42 G02B13/14
LIGHTING APPARATUS FOR VEHICLES
摘要:
A lighting apparatus for vehicles with a number of semiconductor-based light sources and a projection device for generating the specified light distribution with a cut-off line. The projection device features a correction device with at least two lenses. The surface of at least one of the lenses is designed as a diffractive lens surface for achromatization in a visible wavelength range. The two lenses are made from different lens materials. The surfaces of at least two lenses are designed as refractive lens surfaces that have their optical power calculated based on a temperature range and/or expansion coefficient of the lens material of at least two lenses such that adding the optical power of the lenses yields a predefined total optical power of the correction device.
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