Patent ID: 7365837

Claim:
A vision inspection apparatus using total reflection mirrors comprising: a board position control module for fixing a printed circuit board on a suitable inspection position; an independent lighting unit installed at a just upper part of the board position control module and provided with a primary lighting for primarily illuminating the printed circuit board; a photographing position control module, installed at a just upper part of the dependent lighting unit, for changing an incidence angle and a reflection angle by attaching the total reflection mirrors on axes of X-Y axis motors for performing a photographing and an illumination on required location coordinates; a dependent lighting unit provided with a half reflection mirror for changing an illuminating position on the printed circuit board depending upon the photographing position as the photographing position control module is moved, reflecting light illuminated from a secondary lighting to the photographing position control module, and penetrating an image of the printed circuit board; a camera for obtaining images of the printed circuit board penetrated from the half reflection mirror; a control unit including a motion controller for controlling the photographing position control module and the board position control module, a lighting controller for controlling an operation of the independent lighting unit, and an image processor for controlling an operation of the camera and converting the image entered to the camera into digital data; and a vision processing unit for reading the image obtained through the camera and judging whether the image is good or bad.