An exemplary portable electronic device includes a main body, a first camera module disposed in the main body, a second camera module disposed in the main body adjacent to the first camera module, and a light diverging lens rotatably mounted on the main body. The light diverging lens has a first surface and an opposite second surface. The light diverging lens is rotatable between a first position and a second position. When the light diverging lens is in the first position, the light diverging lens is optically aligned with the first camera module and the first surface of the light diverging lens faces the first camera module. When the light diverging lens is in the second position, the light diverging lens is optically aligned with the second camera module and the second surface of the light diverging lens faces the second camera module.