| 摘要 |
The present invention relates to a letter using a convex lens connection. According to the embodiment of the present invention, the present invention relates to a technique for making latters by using an LED (1). According to the embodiment of the present invention, the present invention includes a convex lens cap (2) which is connected to an LED lamp, a protrusion part (4), a female screw (3), and a male screw (4). The protrusion part is connected to a hole (3). |
