If you need to use a back light illumination and a transparent chrome-on-glass calibration target at the same time, Dot Vision newest product is of great help. If you e.g. need a 50x50mm chrome-on-glass target then Dot Vision can customize a perfectly matching backlight illumination and frame for the 50x50mm target. The final assembled product will be just one part including a calibration target, backlight illumination and the metal frame.
Five sides of the target, except the pattern side are perfectly covered by the frame to avoid double-images as shown below.
The integrated backlight illumination ensures a high uniformity of the calibration target/ plate surface, making the choice perfect for demanding applications.