What you don't know about LED Starry Sky Projection Lamp in china
The LED Starry Sky Projection Lamp in china includes a light source, a focusing lens, a beam splitting unit, a collimating lens and a mirror array in sequence along the optical path. The mirror array is pasted on a curved structure to form a curved reflective surface, the opening of the curved reflective surface is circular, and the curved reflective surface is inclined relative to the optical axis. The beam passes through the beam splitting unit to form two sub-beams, which are projected onto the mirror array The light spot on the beam splitting unit is adapted to the inclined curved reflective surface. By setting the two mirrors in the beam splitting unit to be non-coplanar, the light spot reflected by the two mirrors is partially overlapped, so as to project the light spot on the mirror array. Compatible with the inclined curved reflective surface, it can receive all the light without increasing the volume of the mirror array, without causing waste of light, and the overlapping part of the two light spots can be reflected by the mirror array to obtain a larger projection scope.
The above is the content introduction of LED Starry Sky Projection Lamp in china.