IMAGE INPUT DEVICE

摘要

PURPOSE:To permit easy checking of whether a three-dimensional object is within a focusing range of the video of a subject or not by using a means for displaying the focusing range of the video of the subject to be imaged by an imaging lens. CONSTITUTION:The point B on an image pickup side exists by the front side depth X1 of field calculated on the optical axis L in the focus position A on the optical axis L parted by from the CCD face of the image pickup plane 7 by the focus distance S read from a focus position mechanism of a lens part 8. The point C on the subject side on a stage 2 exists similarly by the rear side depth X2 of field on the optical axis L from the focus position A. The distance range from the point C to the point B is accordingly the focus range. The No.3-No.9 of the LEDs of the display elements 9 existing in the distance range from the point C to the point B measured on the optical axis from the stage 2 are made to emit light. The focus range display device is provided in such a manner. Judgement of whether the part desired to be projected of the subject is in the focus range or not is thereby confirmed without having a need for viewing a fine monitor.