| 摘要 |
PROBLEM TO BE SOLVED: To improve side visibility by enlarging a horizontal width of a light distribution pattern without generating a light pool and emission light outside the control range. SOLUTION: A reflection face 2 is formed in a free curve face with a bulb installation hole 3 in a center portion, while the reflection face 2 divided into a plurality of segments different in an emission angle of light of a light source bulb 4 installed in the bulb installation hole 3. The plurality of segments comprises a plurality of convex reflection faces A, B, etc., and concave reflection faces (a), b, etc., which horizontally alternately continue. A boundary portion between both reflection face A (B, etc.), (a) (b, etc.), is a connection refection face 7 passing through a nearly middle point of an offset width h, formed by extending a gentle slope intersecting a standard paraboloid S at a larger intersection angle than an intersection angle between the standard paraboloid S, and the convex reflection face A (B, etc.), and the concave reflection face (a) (b, etc.), in the right and left direction. In the boundary portion, the convex reflection face A (B, etc.), and the concave reflection face (a) (b, etc.), between a connection width H are continued. |
