Patent ID: 7864390

Claim:
An image display apparatus capable of displaying an image on a given plane of projection by beam raster scanning, said image display apparatus comprising: (a) an actuator part capable of causing a movable part to oscillate about a first axis and a second axis, said movable part having a reflecting surface reflecting a light beam emitted from a given light source, said second axis intersecting with said first axis at approximately a right angle; (b) a main scanning unit driving said actuator part based on a first drive signal of a first frequency to cause said movable part to oscillate about said first axis, thereby scanning said light beam reflected off said reflecting surface in a main scanning direction of said raster scanning; and (c) a sub-scanning unit driving said actuator part based on a second drive signal of a second frequency to cause said movable part to oscillate about said second axis, thereby scanning said light beam reflected off said reflecting surface in a sub-scanning direction of said raster scanning, said main scanning unit including a setting part for, out of specific frequencies calculated based on said second frequency, setting a frequency around a resonant frequency relevant to oscillatory motion of said movable part as said first frequency.