Patent ID: 11867372
Assignee: ICHIKOH INDUSTRIES, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  B | IPC B  F

Claim 0:
1. A vehicle light guide body, comprising:
an incident surface that light from a light source enters;
a first reflective surface that internally reflects the light that has entered from the incident surface to form nearly parallel light;
a second reflective surface that has a shape based on a paraboloid of revolution and internally reflects the light from the first reflective surface forward in a front-rear direction in an in-vehicle state;
a third reflective surface provided in a position located in front of the second reflective surface in the front-rear direction and in a portion in at least one of end faces in a left-right direction in the in-vehicle state;
a light shielding part that shields a part of the light reflected by the second reflective surface; and
a light emitting surface that emits the light that has been internally reflected by the second reflective surface and has passed through the light shielding part to illuminate a headlight pattern in front of a vehicle, wherein
the second reflective surface has a diffusion pattern forming surface that reflects a part of the light from the first reflective surface toward the third reflective surface, and
the third reflective surface internally reflects the light from the diffusion pattern forming surface toward the light emitting surface,
the second reflective surface has a light condensing pattern forming surface that internally reflects the light which has been reflected by the first reflective surface such that a part of the light from the first reflective surface passes through a focal point of the paraboloid of revolution and a vicinity of the focal point,
the light condensing pattern forming surface is disposed at a center in the left-right direction, and
the diffusion pattern forming surface is disposed in an outer side in the left-right direction with respect to the light condensing pattern forming surface.