| 摘要 |
An optical lens includes a barrel and a protruding boss unit. The barrel defines a receiving space in which a plurality of components are disposed and arranged along an axis, and includes a front wall. Each of the front wall and the components has front and rear confronting surfaces opposite to each other along the axis. The protruding boss unit is formed on and protrudes from one of the adjacent two front and rear confronting surfaces, and abuts against the other one of the adjacent two front and rear confronting surfaces. The other one of the front and rear confronting surfaces abutted by the boss unit is flat. |
