Patent ID: 8579485
Filing Date: 2013-11-12
Classification: F21S,F21V,F21Y

Abstract:
1. A vehicular lamp comprising: a light source disposed on an optical axis extending in a front-back direction of the vehicular lamp; and a reflector that reflects forward light from the light source, wherein the reflector is formed by a translucent member comprising a plurality of optical elements disposed continuously in a radial direction of the optical axis; wherein each of the optical elements comprises: a surface of incidence through which light from a light emission reference point in the light source is incident into the optical element, wherein the surface of incidence refracts the light into a direction away from the optical axis, a reflective surface which internally reflects forward the light which is incident into the optical element through the surface of incidence, and a surface of emission through which the light internally reflected by the reflective surface is emitted forward from the optical element; wherein the reflective surface of each of the optical elements comprises a curved surface that allows generally an entirety of the light internally reflected by the reflective surface to reach the surface of emission of the optical element as substantially parallel light; and wherein the reflective surface of each of the optical elements is configured such that light internally reflected from an inner circumferential end edge of the reflective surface travels toward an inner circumferential end edge of the surface of emission of the optical element, and such that light internally reflected from an outer circumferential end edge of the reflective surface travels toward an outer circumferential end edge of the surface of emission of the optical element.