Abstract: A dual purpose camera is provided. The dual purpose camera has a doccam mode and a webcam mode. The dual purpose camera includes a base, a supporting member, and a camera. The supporting member is detachably or rotatably coupled to the base. The camera is rotatably or detachably coupled to the supporting member. The camera rotates with respect to a reference plane of the dual purpose camera between a first position and a second position. When it is detected that the camera is attached to the base and the camera rotates from the first position to the second position, the camera automatically outputs a 180 degree rotated image.

Abstract: A polyhedral is provided. The surface of the polyhedral is formed by connection of a plane having a plurality of hexagons and a plane having a plurality of quadrilaterals. There are six hexagonal connected to form a ring covering the surface of the polyhedral. On the surface of the polyhedral, any two connected hexagons form a contained angle of 120 degrees. The polyhedral has a light source and an electric control circuit disposed therein. A plurality of polyhedron can be connected into a multi-media light assembly having a numerical display function or a clock function.