Patent ID: 8698997
Filing Date: 2014-04-15
Classification: G03B

Abstract:
1. A stereoscopic image printing device comprising: an actuating unit for moving a grating structure; a positioning module comprising: a plurality of shelters disposed on a side of the grating structure; a planar light source disposed on the other side of the grating structure for emitting light to pass through the grating structure and an interval between the adjacent shelters; and a photosensitive component disposed on the side of the grating structure for receiving the light emitted from the planar light source passing through the grating structure and the interval between the adjacent shelters so as to generate a corresponding optical intensity signal; and a controlling unit coupled to the actuating unit and the photosensitive component for controlling the actuating unit to move the grating structure according to the optical intensity signal generated by the photosensitive component.