Patent ID: 6517055
Filing Date: 2003-02-11
Classification: G03B,H04N

Abstract:
A printing device comprising:a light source; exposing means for modulating light from the light source for each pixel and for directing the resulting light to a photosensitive material, the exposing means being provided with a plurality of light modulating elements each of which control the transmission and interruption of light rays having respectively different specific wavelength bands and each of which transmit light rays having the other wavelength bands, the light modulating elements being aligned in a light-axis direction so as to correspond to the respective pixels, wherein color tones in the respective pixels with respect to an image printed on printing paper are controlled based upon a subtractive color process by allowing the respective light modulating elements to control the transmission and interruption of light rays having respectively specific wavelength bands;light conversion means for converting light from the light source so as to form virtually parallel light rays with respect to a plane formed by the main scanning direction and the light axis direction in which the light is directed onto the photosensitive material; and light converging means for converging light released from the light conversion means with respect to a plane made by the sub scanning direction and the light axis direction in which the light is directed onto the photosensitive material, wherein the photosensitive material is exposed by allowing the light from the light converging means to pass through the exposing means,wherein the light conversion means is a concave mirror.