Image printing method and apparatus

摘要

A method and device for rotating images about an optical axis by changing the direction of a light path by a composite mirror unit having a simple structure. A printing device has a light source for emitting light to an image Xa on a negative film, a printing lens for adjusting the magnification of the light that passes through the image, and a composite mirror unit for reversing the light path to print an image Ya on a printing material. The entire composite mirror unit can be rotated through a predetermined angle about a rotary shaft by a driving motor. The composite mirror unit has two oppositely arranged mirrors which are mounted on separate blocks and so as to be inclined by 45 DEG with respect to the vertical. By turning the unit by +/-45 DEG from the reference position (0 DEG ), the image will rotate by 90 DEG or 270 DEG with respect to the image Xa.