| 摘要 |
Realized is the luminous intensity of a preset value or more over the preset range of a circumference direction and axis direction. A reflector (12) for a lamp according to an embodiment of the present invention includes: a base part (126), a top part (122), and a reflective part (124). The reflective part (124) has a curved body (120) and a ring-shaped convex part (121). The curved body (120) is installed between the base part (126) and the top part (122). The curved body forms a rotation curve around the top part (122). The ring-shaped convex part (121) is installed on the curved body (120) and forms a circular shape around the top part (122). By the diffusion function of light in the ring-shape convex part (121), the non-uniformity of luminous intensity over the preset range of a circumference direction and axis direction can be prevented and the luminous intensity of a preset value or more can be realized. |
