| 摘要 |
The present invention relates to a pico-projector. The pico-projector according to the present invention can prevent the cross-talk of a photodiode detection operation conducted by a multi-light source and easily matches the directions of laser beams to enable uniform light output distribution and high clarity and definition of an image while implementing accurate colors. The optical system of the pico-projector includes: multiple collimator lens; multiple dichroic filters which transmit or reflect a main beam and a secondary beam to distribute the beams; and exclusive photodiodes capable of detecting the beams. |
