Portable device for the photographing of book pages

摘要

Two transparent plates constitute with each other an angle variable from about 60 to 120 degrees along their common edge. A book to photograph is opened at the chosen pages and placed sitting on said common edge. A photographic camera is attached near the free edge of one of the plates through a supporting element in such a way that the optical axis of the camera stays perpendicular to the one plate. A first planar mirror, which has one edge in common with the common edges of the transparent plates, is maintained exactly in the middle of the angle formed by the transparent plates but can be folded against the one plate. A second mirror which has one edge in common with the one plate near its free edge, is maintained perpendicular to the reference position of the first mirror.