Laser ray strong light interference prevention device

The utility model discloses a laser ray strong light interference prevention device, which comprises a projection brightening curtain plate, the projection brightening curtain plate comprises two glass curtain plates which are parallel to each other, and the two glass curtain plates are respectively arranged on two sides of an emergent laser ray and are parallel to the emergent laser ray. The portions of the two sides of the section of the emergent laser rays coincide with the inner sides of the two glass curtain plates respectively, and a plurality of light absorption material points are evenly distributed in the areas, located above and below the emergent laser rays, of the glass curtain plates. The projection brightness enhancement curtain plate has the advantages that the two glass curtain plates in the projection brightness enhancement curtain plate partially coincide with emergent laser rays, so that the laser rays of the coincident part are scattered to a certain extent on the glass curtain plates, the