This book exclusively deals with apodized confocal scanning Microscope with Cauchy, Bartlett , Strauble ,Lanczo's and Hamming apodisers. Two apertures are allowed, one to receive the object information and the other to collect the modulated information from the first. At the plane of each aperture one apodiser can be used, which facilitates the contrast to vary with degree of apodisation. The image contrast against varying distance parameter for specific levels of apodization has been evaluated and corresponding contrast profiles are obtained.