| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve problems of limited design of a light emitting pattern and degree of freedom in designing, a large number of components and high manufacturing cost of a conventional lamp for vehicle. <P>SOLUTION: The lamp includes a lamp housing 2 and a lamp lens 3, a light source 4, and a light distribution control unit 6. The light distribution control unit 6 is constituted of a group of fine prism elements. The group of fine prism elements is constituted of incidence planes 27, reflection planes 28, and outgoing planes 29. The incidence planes 27 and the outgoing plane 29 in the group of fine prism elements are alternately disposed stepwise so as to come closer to the side of the lamp lens 3 as they go in a radial direction of light L from the light source 4. <P>COPYRIGHT: (C)2010,JPO&INPIT |
