Application of this prism and the prism optical detection system

Optical detection system and apply the prisms of the prism. The prism (223) comprises a bottom plane (223a), an upper plane (223b), a first side surface (223c), a second side surface (223d), wherein the first side (223c) and a second side surface (223d) is located between a plane (223b) and a lower plane (223a), and a first side surface (223c) and a second side surface (223d) is a one-dimensional parabolic surface, the lower plane (223a) used for receiving light, a first side surface (223c ) for reflecting light from the lower plane (223a) to the upper plane (223b), a second side surface (223d) for reflecting light from the line on a plane (223b) to the lower plane (223a), the light further subsequent processing .