METHOD OF AUTOMATIC CONTROL OF MEANS FOR ADJUSTING AN APPARATUS FOR OBSERVING A SUBJECT, MEANS FOR PERFORMING THE METHOD, AND APPARATUS EQUIPPED WITH THESE MEANS

摘要

The invention relates to a method for automatic control of means for adjusting an apparatus for observing a subject in the sight of at least one person. It is characterized in that to command the displacement of the visual field (7) to a zone of the subject that the observer wishes to have appear as a zone of vision, relative to the reference system (R) associated with each optical system (4) at the time of its definition, the principle is altered in a variable manner as a function of the magnitude of the angle measured between the sight direction and the optical axis, which makes it possible to isolate in imaginary fashion, in the field of sight (14), at least one central field (15) having its axis approximately coincident with the optical axis (9) of the optical system (4) in question, in the form of a cone with its apex (S) substantially coincident with the center of the pupil of at least one eye of the observer and having its envelope at least partly contained in the visual field (7) and then to divide the field of sight (14) in imaginary fashion into approximately at least two coaxial volumes (16, 17, 18).