| CPC F21S 41/27 (2018.01) [F21S 41/147 (2018.01); F21S 41/151 (2018.01); F21S 45/47 (2018.01); F21W 2102/13 (2018.01)] | 20 Claims |
|
1. A vehicle headlamp optical system, comprising a plurality of modules and light distribution lenses that are disposed in fronts of all the modules; the plurality of modules comprising at least one high-beam module, at least one main low-beam module, and at least one auxiliary low-beam module; the light distribution lenses being narrow and long light distribution lenses; all the modules being disposed at intervals along the length directions of the light distribution lenses;
the high-beam module comprising a high-beam optical element and at least one high-beam light source, the high-beam optical element comprising a high-beam light transmission part and a light emitting part, at least one high-beam light converging part being disposed on a rear end of the high-beam light transmission part, the high-beam light converging part, the high-beam light transmission part and the light emitting part being sequentially connected and being integrally formed, the high-beam light converging part being in one-to-one correspondence to the high-beam light source, and rays emitted by the high-beam light source being converged by the high-beam light converging part and being then sequentially emitted by the high-beam light transmission part and the light emitting part to form a high-beam light shape;
the main low-beam module comprising a low-beam optical element and at least one low-beam light source, the low-beam optical element comprising an optical channel, the optical channel comprising a first optical channel and a second optical channel that are integrally formed, at least one low-beam light converging part being integrally formed on a rear end of the first optical channel, a low-beam light emitting surface being formed in a front end of the second optical channel, and the low-beam light converging part being in one-to-one correspondence to the low-beam light source; the low-beam light converging part and the first optical channel being both located above an optical axis of the low-beam light emitting surface, and an optical axis of the low-beam light converging part being obliquely disposed with respect to the optical axis of the low-beam light emitting surface; a reflecting part being formed on a lower surface of the first optical channel, a cut-off part being disposed on a position on which the reflecting part intersects with a rear end surface of the second optical channel, rays emitted by the low-beam light source sequentially passing through the first optical channel and the second optical channel after being converged by the low-beam light converging part, and being emitted by the low-beam light emitting surface to form a low-beam light shape; and
the auxiliary low-beam module comprising an auxiliary low-beam primary optical element, a lens, and at least one auxiliary low-beam light source, the auxiliary low-beam primary optical element comprising an auxiliary low-beam light transmission part and at least one auxiliary low-beam light converging part, a rear end of the auxiliary low-beam light transmission part and the auxiliary low-beam light converging part being integrally formed, an auxiliary low-beam primary light emitting surface being formed on a front end of the auxiliary low-beam light transmission part, the auxiliary low-beam light converging part being in one-to-one correspondence to the auxiliary low-beam light source, rays emitted by the auxiliary low-beam light source being irradiated onto the auxiliary low-beam light transmission part after being converged by the auxiliary low-beam light converging part, being irradiated onto the lens after being emitted by the auxiliary low-beam primary light emitting surface, and being refracted by the lens to form an auxiliary low-beam light shape.
|