LASER FOR LASER SCREEN

A laser for a laser screen comprises a housing (1), a laser module (2) provided therein, and a conical mirror (3) arranged at the right end of the housing (1) and located at a light exit path of the laser module (2); the right end part of the housing (1) is connected with a fixed base for the conical mirror (3) through a connection part (4), the axis of the conical mirror (3) offsets toward one side of the connection part (4), the distance between the axis of the conical mirror (3) and the axis of the laser module (2) is kept within a range from 0 mm to 4 mm, and exit laser light from the laser module (2) is reflected by the conical mirror (3) and then exits from a gap between the fixed base (5) for the conical mirror and the housing (1); and the included angle between the two end parts of the connection part (4) along the housing (1) is larger than or equal to 90 degrees, and is smaller than or equal to 180 degrees. Being free from repeated adjustments, the laser achieves a reduction in laser quantity, impro