Patent ID: 8702287
Filing Date: 2014-04-22
Classification: F21S,F21V,F21Y

Abstract:
1. A lighting fixture for a vehicle comprising: a light source configured to emit visible light having a plurality of wavelength components including at least blue, green and red components; and a lens body formed with a chromatically dispersed material, the lens body including an incident face, a reflecting face, and an exit face, the lens body configured such that a light distribution pattern formed by reflecting light from the light source which has entered inside the lens body from the incident face in a predetermined direction by the reflecting face to emit the light outside the lens body forms a boundary line between light and dark, wherein: the incident face is formed as at least one of a flat face and a concave curved face forming both, a non-refraction optical path where light emitted from a predetermined point of the light source and which enters the incident face does not experience refraction when passing through the incident face, and at least one refraction optical path where light emitted from the end portion of the light source and which enters the incident face experiences refraction when passing through the incident face, the reflecting face, which directly reflects the light incident inside the lens body towards the emission surface, including a non-refraction optical path reflecting portion where light passing through the non-refraction optical path is reflected, a refraction optical path reflecting portion where light passing through the at least one refraction optical path is reflected, and an upper side refraction optical path reflecting portion where light passing through the at least one refraction optical path is reflected positioned on a portion of the reflecting face located on a more upper side of the vehicle than the non-refraction optical path reflecting portion in a vertical section of the lens body, wherein the non-refraction optical path reflecting portion, the refraction optical path reflecting portion and the upper side refraction optical path reflecting portion are located on a common surface of the reflecting face, the upper side refraction optical path reflecting portion is formed such that, light emitted from the light source which is green, and which passes through the non-refraction optical path, is oriented slightly downward relative to a remainder of light emitted outside the lens body, and such that light emitted from the light source which has a visible light color having a refraction index smaller than a refraction index of a green wavelength in the lens body is emitted at least one of toward the boundary line between light and dark of the light distribution pattern constituted by the light passing through the refraction optical path, and inward of the light distribution pattern; the light source emits white light including red, green, and blue light having light emission sources, the predetermined point is an emission surface at the end portion of the light emission surface, and the light source is positioned such that the beam emitted through the reflection surface and the emission surface after the emission light from the end portion of the light emission surface and the end portion on the opposite side incident the incident face of the lens body, emits lower than the boundary between light and dark.