A method and an arrangement for depicting half-tone images of equal-sized image dots provides an arrangement of the image dots in a grid having three directions of orientation at an angle of 60.degree.. Each image dot is thus equidistant from the six directly adjacent image dots. A constant number of...http://www.google.es/patents/US4374388?utm_source=gb-gplus-sharePatente US4374388 - Method and an arrangement for depicting a half-tone image
Method and an arrangement for depicting a half-tone image
