Patent ID: 6169562
Filing Date: 2001-01-02
Classification: H04N

Abstract:
An image exposure apparatus comprising: at least three kinds of light sources each of which emits a light of a different wavelength; deflecting means which deflects at least three kinds of emitted light emitted by said light sources in a predetermined scanning direction; a scanning lens which is disposed so that the at least three kinds of emitted light deflected by said deflecting means can be transmitted therethrough and which allows each chromatic aberration of two kinds of emitted light from among the at least three kinds of emitted light to have substantially the same characteristics; clock generating means for generating a scanning clock for the two kinds of emitted light and a scanning clock for emitted light other than the two kinds of emitted light, each frequency of the scanning clocks being determined in advance so that the two kinds of emitted light and the emitted light other than the two kinds of emitted light have substantially the same scanning lengths on an exposure surface; and modulating means which modulates the two kinds of emitted light based on image data and the scanning clock for the two kinds of emitted light, and also modulates the emitted light other than the two kinds of emitted light based on image data and the scanning clock for the emitted light other than the two kinds of emitted light.