METHOD AND APPARATUS FOR MEASURING DRAWING POSITION, AND METHOD AND APPARATUS FOR DRAWING IMAGE

摘要

modulating the incident light relative to the exposure head and drawing surface for forming the drawing points on the drawing surface moving, in the imaging position measuring method for measuring a position of the imaging point in time to draw the image on the drawing surface formed by sequentially plotting point by the exposure head, a problem than the measured position of the imaging point with high precision with, and modulate the incident light and for this purpose was relatively moving the exposure head 26 and the drawing surface to form an imaging point on the drawing surface, the imaging point seedlings by the exposure head 26 by the relative movement In the position of the imaging point in time sequentially formed by drawing a picture on the screen to draw the location measurement method of measuring by the slit 74 formed on the drawing surface for detection, the exposure of the relatively moving the head with a slit for detection ( measuring the relative positional deviation of 74), and corrects the position of the drawing point, as measured by a slit (74) for detecting on the basis of the measured position error.