Abstract: The invention relates to an optical pickup device usable in television cameras,intended in particular for reading documents and comprising a pickup lens system. The optical device according to the invention comprises an aiming window, a selective mirror located substantially vertically above the window, dividing the optical beam from the said window into a transmitted beam and a reflected beam, and a reflecting mirror located in the continuation of the reflected beam from the selective mirror, directing the reflected beam towards the pickup lens system of the device.

Abstract: The invention relates to a document bearing an image or a text, broken down into a large number of elementary areas with which are associated respectively a large number of indexes.According to the invention, each index includes a group of dots (10) placed on the document in the vicinity of the associated elementary area and forming a specific code for the said area, the indexes as a whole forming a location frame covering the said image or the said text and superimposed thereupon, each group of dots being readable by optical reading means cooperating with a data processing system comprising a data medium addressable by means of the said indexes.

Abstract: The invention relates to a map bearing a graphic representation of cartographical information, broken down into a large number of elementary areas with which are associated respectively a large number of indexes.According to the invention, each index includes a group of dots (10) placed on the map in the vicinity of the associated elementary area and forming a specific code for the said area, the indexes as a whole forming a location frame covering the said geographical representation and superimposed thereupon, each group of dots being readable by optical reading means cooperating with a data processing system comprising a data medium addressable by means of the said indexes.