CREATION OF A NEW 3D OBJECTIVE FOR 35 MM FOR CINEMA PROJECTOR AND VIDEOPROJECTOR

摘要

Three-dimensional lens adapted to the standard 35mm projector as well as to the projector for transferring exclusively to the screen the 35mm high quality left and right images that have been compressed beforehand transferred onto a single 35mm film frame. Only one standard anamorphic lens is combined with an adapter box placed immediately in front of the lens. When the two 35 mm left and right compressed images from the light source arrive at the optical system, they are decompressed first by the anamorphic lens. These two 35mm left and right images were pre-compressed by a specific printing system that compresses two left and right 35mm images instead of reducing them to one 35mm film frame. The uncompressed images then pass through the adapter box. The latter consists of a trapezoidal metal frame in the middle of which two primary mirrors are joined with the angle of 90 °. The two secondary mirrors, parallel to the two equal sides of the trapezoidal frame and in front of the primary mirrors are adjustable in inclination. Two polarizing filters are mounted where the optical axis leaves the housing. The left and right images are directed to the screen by all the mirrors and the polarizing filters of the adapter box whose ray reflection set first divides the two images and then superimposes them so that they are perceived with a very high quality thanks to the filter glasses in three-dimensional format.