| 摘要 |
A lamp unit includes a linear light source that extends at an angle with respect to an optical axis; and a reflector that reflects light radiated from the linear light source. The reflector has a predetermined section that reflects light radiated from the linear light source such that images of the linear light source projected on a predetermined virtual panel extend in a predetermined direction. The reflector is configured so as to forms a high-intensity region that linearly extends in the predetermined direction and whose intensity of which is higher than a surrounding area. The high-intensity region is formed by superimposing light reflected by the predetermined section and a surrounding section thereof on the virtual plane.
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