| 摘要 |
PURPOSE: A double scanning method and a laser projection image apparatus are provided to supply an image of high quality and high definition by splitting a laser beam so as to apply it to an image scanning part. CONSTITUTION: A color split part divides a light source into red, green and blue beams. A light modulation part modulates the divided beams. A light integration part integrates the divided beams into one beam. A laser beam split part(60) is provided for double scanning. A scanning part projects the beam onto a screen. The laser beam split part includes a beam splitter(101) for splitting the beam into two beams, a polarization rotation plate(102) for rotating the beam by 90°, a high reflective mirrors(103,104) for reflecting the beam that passes the polarization rotation plate and a cube beam splitter(105) for applying the beams split by the beam splitter to the scanning part.
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