VEHICLE DECORATIVE LIGHTING DEVICE AND VEHICLE LAMP

摘要

A vehicle decorative lighting device and a vehicle lamp including the lighting device can include a light guide lens and a light source that can emit various color lights. The light guide lens can includes a front surface including a plurality of convex surfaces so as to emit the color lights having a substantially uniform light-intensity from the front surface. The vehicle lamp can include a lamp room between an outer lens and a housing, and can incorporate various vehicle lamps such as a headlight along with the lighting device in the lamp room. The lighting device can be located in the lamp room so as to emit the color lights along a periphery of the outer lens. Thus, the disclosed subject matter can include providing vehicle lamps including the decorative lighting device having a harmonious favorable light distribution, for example, such that combine a headlight with a position lamp.

主权项

1. A vehicle decorative lighting device, comprising:
a light guide lens having a front surface, a rear surface, a first reflective surface, a second reflective surface, a reference plane and a longitudinal axis plane including a first linear portion, a second linear portion and a curved portion, the curved portion of the light guide lens curving along the longitudinal axis plane of the light guide lens,
the first linear portion of the light guide lens having a first end surface linearly extending along the longitudinal axis plane of the light guide lens, and continuously connecting to the curved portion at a location opposite the first end surface, the second linear portion of the light guide lens having a second end surface linearly extending along the longitudinal axis plane of the light guide lens and continuously connecting to the curved portion at a location opposite the second end surface,the reference plane having a first front end line and a second front end line connecting between the first front end line and the second front end line in a planar shape, located in a substantially parallel direction with the rear surface and intersecting with the longitudinal axis plane at a substantially right angle,the front surface having a first light-emitting surface, a second light-emitting surface, a third light-emitting surface, a fourth light-emitting surface, a first valley line, a second valley line and a third valley line located between the first front end line and the second front line of the reference plane, the first light-emitting surface extending between the first front end line and the first valley line in a wide direction of the light guide lens, extending along the reference plane in a longitudinal direction of the light guide lens, and formed in a convex shape between the first front end line and first valley line in an opposite direction of the reference plane, the second light-emitting surface extending between the first valley line and the second valley line in the wide direction of the light guide lens, extending along the reference plane in the longitudinal direction of the light guide lens, and formed in a convex shape between the first valley line and the second valley line in the opposite direction of the reference plane, the third light-emitting surface extending between the second valley line and the third valley line in the wide direction of the light guide lens, extending along the reference plane in the longitudinal direction of the light guide lens, and formed in a convex shape between the second valley line and the thirst valley line in the opposite direction of the reference plane, the fourth light-emitting surface extending between the third valley line and the second front end line in the wide direction of the light guide lens, extending along the reference plane in the longitudinal direction of the light guide lens, and formed in a convex shape between the third valley line and the second front end line in the opposite direction of the reference plane,the rear surface having a first rear end line and a second rear end line formed in a substantially planar shape including a plurality of prism surfaces, each of the prism surfaces arranged in the longitudinal direction of the light guide lens and extending in the wide direction of the light guide lens between the first rear end line and the second rear end line,the first reflective surface formed between the first rear end line of the rear surface and the first front end line of the reference plane, extending in the longitudinal direction of the light guide lens, and formed in a concave shape toward the reference plane,the second reflective surface formed between the second rear end line of the rear surface and the second front end line of the reference plane, extending in the longitudinal direction of the light guide lens, and formed in a concave shape toward the reference plane,the longitudinal axis plane intersecting with the rear surface at a substantially right angle, and also substantially intersecting with the second valley line,at least one of the first end surface of the first linear portion and the second end surface of the second linear portion of the light guide lens exposed from the light guide lens, and located in a substantially parallel with both the reference plane and the longitudinal axis plane; and a light source having a light-emitting surface and an optical axis, the light-emitting surface of the light source facing the at least one of the first end surface of the first linear portion and the second end surface of the second linear portion of the light guide lens, which is exposed from the light guide lens, wherein the optical axis of the light source intersects with the longitudinal axis plane.