The iris recognition module 40 and the visible light camera 24 are disposed in the housing 50, and the iris recognition module 40 and the visible light camera 24 may be protected by the dustproof and waterproof functions of the housing 50, thereby preventing the iris recognition module 40 and the visible light camera 24 from being damaged by external factors and from affecting the normal operation. In addition, the iris recognition module 40 and the visible light camera 24 are exposed from the front surface 52 to facilitate the iris recognition module 40 and the visible light camera 24 to operate, thereby avoiding influence on the light collection of the infrared camera 22 and the visible light camera 24 in the iris recognition module 40 and ensuring that the iris recognition module 40 and the visible light camera 24 can operate efficiently.

Referring to FIG. 8, in some embodiments, an illumination range of an infrared light source 12, a field of view of the infrared camera 22 and a field of view of the visible light camera 24 at least partially overlap.

As such, the infrared light source 12, the infrared camera 22 and the visible light camera 24 may operate cooperatively.