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.
