JP2008078086A5 - - Google Patents

Claims (4)

A light emitting element disposed toward the upper side of the vehicle;
A light guide block having a reflecting surface for reflecting light from the light emitting element forward of the vehicle,
In this light guide block, the cross-sectional shape in the vertical direction along the optical axis of the reflecting surface is set to a substantially parabolic shape having a focal point on the optical axis, and light from the light emitting element is transmitted to the light guide block. An incident surface that is incident on the inside is set as a horizontal plane that passes through the optical axis and substantially coincides with the focal point .
The incident surface is subjected to a light shielding process behind the focal point,
A vehicular lamp, wherein a part or all of the reflection surface is subjected to a reflection process for reflecting light reaching the reflection surface . The vehicular lamp according to claim 1, wherein the surface shape of the reflecting surface is set as a substantially parabolic column shape having a parabola appearing in a vertical cross section passing through the focal point as a cross section . The vehicular lamp according to claim 1 or 2, wherein the shading process is performed forward from a focal position of the reflecting surface . The light emitting element is a light emitting diode having a substantially flat surface that emits light, the light emitting diode is provided close to the incident surface of the light guide block, and the light shielding process of the incident surface is performed by the light emission of the light emitting diode. The vehicle lamp according to any one of claims 1 to 3, wherein a part of the portion is covered .