Light guide member, vehicle illumination device, and method for manufacturing light guide member
AssigneeYazaki Corporation
InventorKazuya SATO
Life of this patent
Estimating the term…
Abstract
A light guide member includes: a light guide member body made of a light transmissive material; a white back surface white-coated layer provided on a back surface of the light guide member body; a white front surface white-coated layer provided on a front surface of the light guide member body; and a black front surface black-coated layer provided on a front surface of the front surface white-coated layer. A light irradiation hole which is opened in the front surface black-coated layer and the front surface white-coated layer and through which the light guide member body is exposed is provided.
Claims6
A light guide member comprising:
- a light guide member body made of a light transmissive material;
- a white back surface white-coated layer provided on a back surface of the light guide member body;
- a white front surface white-coated layer provided on a front surface of the light guide member body;
- a black front surface black-coated layer provided on a front surface of the front surface white-coated layer;
- and
- a light irradiation hole which is opened in the front surface black-coated layer and the front surface white-coated layer and through which the light guide member body is exposed.
A vehicle illumination device comprising:
- a light source;
- and
- a light guide member to which light from the light source is incident from an end face,
- wherein the light guide member comprises:
- a light guide member body made of a light transmissive material;
- a white back surface white-coated layer provided on a back surface of the light guide member body;
- a white front surface white-coated layer provided on a front surface of the light guide member body;
- a black front surface black-coated layer provided on a front surface of the front surface white-coated layer;
- and
- a light irradiation hole which is opened in the front surface black-coated layer and the front surface white-coated layer and through which the light guide member body is exposed.
A method for manufacturing a light guide member comprising:
- a coating step of coating a back surface and a front surface of a light guide member body made of a light transmissive material with white and black to form a back surface white-coated layer, a front surface white-coated layer, and a front surface black-coated layer;
- and
- a laser step of emitting a laser beam to form a light irradiation hole which is open in the front surface black-coated layer and the front surface white-coated layer and through which the light guide member body is exposed, after the coating step.
Dependencies are inferred from the claim text.