PATTERN DISPLAY UNIT FOR INSPECTING SPEED OF ELECTRONIC SHUTTER OF VIDEO CAMERA

摘要

PURPOSE:To make it possible to quantitatively inspect the function of the electronic shutter of video camera. CONSTITUTION:A plurality of microlight emitting bodies 22 are laid out on a screen 21 and are sequentially lit in a shape of pulse chain to form an inspection. The video camera 10 to be inspected takes picture of this pattern, counts the number of a chain of light emitting bodies 22 whose lighting is observed on the screen of monitor TV 50, and calculates the shutter speed to realize the quantative inspection.