LASER PROJECTION DEVICE

摘要

A laser projection device includes three laser chips, a spectroscope arranged on light paths of laser beams emitted from the three laser chips, and a lens mounted between the laser chips and the spectroscope. The lens includes a main body and a bending part bent from the main body. The main body is on the light paths of two of the laser chips. The bending part is on the light path of another laser chip. The laser beams emitted from the corresponding two laser chips are refracted by the main part of the lens. The laser beams emitted from the corresponding another laser chip are refracted by the bending part. The laser beams emitted from the laser chips are converged by the lens to reach the spectroscope and then reflected by the spectroscope to be mixed together.

主权项

1. A laser projection device comprising:
a substrate; three laser chips mounted on the substrate, each laser chip being a laser diode; a spectroscope arranged on laser beams paths of the laser chips; and a lens located between the laser chips and the spectroscope, the lens comprising a main body and a bending part bent from an end of the main body, the main body being located on laser beams paths of two of the three laser chips, the bending part being located on laser beams paths of another laser chip, laser beams emitted from the laser chips being refracted by the main body and the bending part convergently into the spectroscope.