Digital light microscopy

The digital microscope offers an overlay of images from  adjacent planes  of focus. The final image appears like a photo taken with an optic that offers   an extended depth of focus. The steps between the planes of focus are precisely known and enable to calculate altitudes in 3D-images.

The overlay technique enables a simultaneous inspection of details that exceed the depth of  focus, e.g. at the bottom of the object. The image shows a missaligned winding off-set at an extended depth of field.

The photo depicts the contact side of a capacitor. The housing and the lead have been removed. The depth of the grove underneath the position of the lead is of interest.