| 摘要 |
PROBLEM TO BE SOLVED: To give the degree of freedom in design to a projector type lamp difficult to be applied to a change in design so far, by changing the shape and increasing the area of a projection lens without losing characteristics such as the shape of the light distribution characteristic as the projector type lamp. SOLUTION: A projector type lamp 1 can be obtained by forming a cylindrical lens part 31, wherein a curve appears in a vertical cross section in a fitted condition to the center portion in a projection lens 3, and an spherical lens part 32 halved in a cross section passing the center and having a shape contacting on a divided surface on both the respective right and left end parts of the lens part 31. Consequently, the projection lens can be changed in shape and the area is increased without losing characteristics as a projector type lamp 1. |
