High performance PCB appearance inspection device contributes to improving the quality of electronic equipment In home appliances, mobile phones and other electronic equipment, there are many places to use the "printed circuit board" welded with electronic parts and equipped with circuit wiring. If one of the electronic components that form these circuits is not solidly welded, it will cause the entire electronic device to fail to operate normally. Recently, with the miniaturization of mobile phones and other devices, printed circuit boards have become more and more high-density, and it has reached a stage where the welding results cannot be accurately and quickly checked by the naked eye.   If the Omron PCB appearance inspection device is used, even if the mobile phone printed circuit board is equipped with hundreds of electronic parts in less than 1 square millimeter, it only takes 25 seconds to check the welding results. Moreover, the data collected by the printed circuit board appearance inspection device can be managed as knowledge, and the evolution from "eliminating defective products" to "not producing defective products" can contribute to improving the quality of electronic equipment.         Technology Special welding result recognition technology Welding result recognition technology to support high quality product manufacturing The Omron Printed Circuit Board Appearance Inspection Device (VT-S) uses color highlights. The color highlight method is a way to use a camera to take a three-dimensional shape of the welding surface and use it as a two-dimensional image to detect the hue information, and then judge the welding result according to the image. The red, green and blue lights are illuminated from the top of the printed circuit board to the welding surface, and the reflected light of various colors is captured by the camera directly above.   Which color will be reflected in the direction of the camera, according to the Angle of the welding surface is different, so it can be used as a "color change" to detect the welding state between the printed circuit board.   In other words, it is possible to determine whether the welding of electronic parts is correct according to their hue shape.