| 摘要 |
A scope is disclosed and includes a substantially tubular body having an inner surface and an outer surface. The scope includes a reticle, a light-emitting diode, and a circuit board including a processor having a program. The light-emitting diode is connected to the circuit board and the program controls the light-emitting diode to emit one of at least three user-selectable colored lights upon the reticle. |
