Patent ID: 6927837

Claim:
A method for visually restoring a digital image displayed on a transparent LCD screen, comprising: associating with the LCD screen an array of microlenses at an input face of the LCD screen, upstream of a black mask defining apertures positioned facing each of cells constituting the LCD, each of said cells being associated with a single pixel of said image and with one microlens of said array; using telecentric projection optics designed to increase contrast and uniformity of the image in the visual restoration; controlling the divergence angle θ of an incident beam of exposure or illuminating light, so as to allow, in association with the microlens array and the mask, control of size and shape of a spot emerging from each of the cells of the LCD screen and, in association with the telecentric projection optics, control of the effective size and shape of pixels in the visual restoration; performing, by means of a mechanism, at least one lateral shift in a projection plane of the LCD screen or of each of the pixels of the image displayed on said LCD screen; and carrying out one or more exposures on a visual restoration medium for each of these shifts.