| 摘要 |
A laser projector is provided to offer a pointer function with different colors by using an optic module generating a green light, a laser light source generating a red light and a blue light, and a rotational mirror reflecting lights from light sources into more than two paths. A laser projector(100) includes an optic module(101), laser light sources(102,103), a rotation mirror(110), a first refection mirror(121), a second reflection mirror(122), a first band pass filter(131), a second band pass filter(132), a spatial light modulator(161) and a scan mirror(164). A green light generated from the optic module is reflected by the first reflection mirror and then reflected perpendicularly by the second reflection mirror. The first and second band pass filters transmit the green light reflected by the second reflection mirror and reflect red and blue lights emitted from the laser light sources to the rotation mirror. The spatial light modulator spatially modulates the incident light from the rotation mirror to reflect light into more than two paths.
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