AUTOMATIC FOCUSING DEVICE

摘要

PURPOSE:To display an angle of view in an automatic focusing constantly and to display information such as the coincidence of a focal point in an electron view finder by flashing the light and putting out the light for a part of a frame indicating the angle of view in the automatic focusing displayed in the electron view finder. CONSTITUTION:Since there is complete information concerning the angle of view, the flashing of the light and the putting out of the light of other four sides are combined and plural states can be displayed. The figure (a) displays the state in which the upper side light of the four sides of the frame in a back focusing is put out and the figure (c) displays the focusing by lighting up all the beams of light of the four sides. The figure (d) shows an alarm state when there is no focusing information to be obtained in the focusing angle of view by flashing the beams of light of both the sides of the four sides.