| 摘要 |
A lens body, a light source unit and a lighting system, which can reduce the cost by using a common lens, are provided. Substantially cylindrical supporting units 210, 220 are formed at both sides of a lens 200. The supporting units 210, 220 are to adjust the separation distance between the lens 200 and the surface of a substrate depending on the height dimension of a light emitting diode mounted on the substrate from the substrate face when the lens body 2 is fixed to the substrate. A cylindrical convex part 202 is formed at a part of the tip face of the supporting unit 210 in a concentric fashion relative to the supporting unit 210, and a cylindrical positioning unit 201 is formed at a part of the tip face of the convex part 202 in a concentric fashion. The positioning unit 201 functions as a member for positioning when the substrate and the lens body 2 are fixed to each other. |
