20150704 state optics https://ceilinex2015.de/images/20150704-state-optics.png/view https://ceilinex2015.de/images/20150704-state-optics.png/@@images/image-1200-04c6b2323296eaceb22be3dd5175b34e.png 20150704 state optics 20150704_state_optics.png image/png Type image/png Dimension Dimension 2833x2358 Size File size 387.8 KB Download View full-size image