PanelScan Integration Guide Focusing the Camera PanelScan is now ready for setup and operation. The first step is to get a good image by focusing the camera(s) and then aligning the camera(s) and light(s) so that they are all perpendicular to the axis of motion of the board. This can be accomplished by performing the following steps: • Put a wide board on the conveyor beneath the camera(s). The board should have white barcodes all the way across the board. These are ideal features for focusing the camera. • Run the Basler Pylon Viewer (x64) software from the Start menu. • Select each camera in turn. • Set the aperture of the lens to 8.0 . • Set the camera Exposure Time (Raw) to 1700 .
This can be found in the Acquisition Controls section. • Enable live video by selecting the camera and clicking on the Continuous Shot button. This will show a 6,144 x 256 pixel image. Zoom out to see whole image. • Change the tilt of the light so that the image is as bright as possible. Lock down the light. • Move the board so that the barcode can be seen. • Change the focus of the lens so that the black and white bars of the barcodes are as sharp as possible. Zoom in to get a better view. • Move the scroll bars so you can see the far right and far left of the image. Be sure that both sides are in focus.
• If both sides of the picture are not in focus, verify that the camera face plane and the board plane are perfectly parallel. • Adjust again. Aligning the Light and Camera The light line, the image line and the board edge must be exactly parallel to each other. The entire length of the board edge should be seen all at once, and the illumination should be perfectly even across the board. You can verify this by performing the following steps: • Put a piece of white paper over the board aligned with the leading edge. • Go into live video and zoom all the way out. • Move the board and paper under the camera until it can just be seen.
• The whole width of the image should show the whole width of the white paper simultaneously. If it doesn’t, adjust the camera, moving the paper in and out, until the leading edge is seen all at once. • Now perform the same process for the light. • Place the paper completely under the camera. Adjust the tilt of the light until the image is at its brightest. • If one side of the image is less bright than the other, adjust the light until the paper is evenly illuminated across the board. Fine Focus In the following steps you will begin taking moving pictures with PanelScan. You will begin to see full X, Y images of the board.
As the board moves under the camera you will be able to perform a fine focus to achieve the best possible images of the barcodes or Data Matrix symbols. The symbols should look like the ones shown at right. Zoom in to see real images. Cells as small as 3 pixels and narrow bars as narrow as 2 pixels should be readily distinguishable. 12 Copyright © 2019 Omron Microscan Systems, Inc.