| 摘要 |
A high beam and low beam combination lamp for a bicycle includes a main body 1, a lens 2, a downward light source 3 and a straight light source 4, the main body 1 having a receiving space 11 defined thereon, the receiving space 11 having a first surface 12 and a second surface 13 formed therein, the lens 2 being assembled in the receiving space 11 and corresponding to the second surface 13, the downward light source 3 being assembled with the first surface 12, parts of the light beam of the downward light source 3 obliquely passing through the receiving space 11 so as to form a low beam lighting region, the straight light source 4 being assembled with the second surface 13, the light beam of the straight light source 4 passing through the lens 2 so as to form a high beam lighting region. The lens 2 may be a plane lens, a Fresnel lens, or a TIR lens. The downward light source may be directed at a reflecting plane (5, figure 14). |
