Figure 6
From: XEOM 1 - A novel microscopy system for the chemical imaging of heritage metal surfaces
Schematic diagram of the XEOM 1 instrument. Optical simulation (ray diagram) for the microscope. The red, green and blue ray bundles come respectively from the bottom, centre and top of a field of view 2 mm across and show the transfer to the CCD surface. The lenses (L1-L4) are fused silica to give flat transmission across a bandwidth of 250–1000 nm (near-UV to near IR).