Installation for exposing a cinematographic film from digital images

An installation for exposing a cinematographic film from digital images, said installation comprising:

• a light source capable of emitting in three fundamental colors red, green and blue;
• means for storing film photoresist, respectively for exposure and already exposed;
• a film carrier suitable for positioning said film photoresist accurately at a level of an exposure plane;
• a projection lens capable of projecting the digital images at the exposure plane of said film carrier;
• a liquid crystal matrix where the various digital images to be exposed are displayed, located on a light beam issuing from the light source;
• a retractable mirror oriented at 45° to an optical axis of the projection lens;
• and
• an image analysis device positioned symmetrically to said film carrier exposure plane with regard to a plane containing said mirror when the latter is in place on the optical axis of the projection lens, and suitable, when said mirror is positioned on the optical axis of the projection lens, for receiving the digital image transmitted by the liquid crystal matrix issuing from the projection lens, the image analysis device processing signals thereby detected using an associated software, for setting parameters of the optical members of the installation, which includes at least the light source and of the liquid crystal matrix, and for adjusting and controlling a focusing of the projection lens.