The Visitron Systems GmbH “VS-Homogenizer” optics are designed to enhance the laser illumination of spinning disc confocal CSU-X1. This optical component can be easily added to already installed CSU-X1 confocal scan heads. The existing functionality of the original CSU confocal head remains. This enhancement offers even illumination of large sample areas and allows highsensitivity imaging of living cells without the need for mathematical shading correction.