| 摘要 |
<p>A lamp unit (10) mounted in a vehicle includes a light source (16), a light source mounting portion (14) on which the light source (16) is mounted, and a projection lens (100) having a front surface (102) with a convex shape and configured to project light from the light source (16) to the front of the lamp unit (10). When looking at the lamp unit (10) from the front, the front surface (102) of the projection lens (100) takes a substantially round shape which is centered at an optical axis (O) of the lamp unit in a position (102a) which lies closer to a front end portion and a substantially non-round shape at a rear end portion (102b). The front surface (102) changes gradually its shape from the substantially round shape to the substantially non-round shape in a region between the position (102a) and the rear end portion (102b) as it extends from the position (102a) towards the rear end portion (102b).</p> |
