| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser projection apparatus capable of reflecting light beams in the direction of an observer, preventing images from beeing seen from surroundings, and concentrating light in the direction of the observer, thereby enabling the observer to see bright images. SOLUTION: The laser projection apparatus has short-wavelength laser beam sources that generate at least three color laser beams, namely red, blue, and green laser beams. The apparatus also has a screen that reflects red, blue, and green laser beams emitted from the short-wavelength laser beam sources. The light beams are reflected so as to be limited to corresponding specific ranges of angle by an angle selecting element disposed on the screen. COPYRIGHT: (C)2007,JPO&INPIT
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