optics
cylindrical lence (fused silica transmittance is quite flat in the UV zone, also index of refraction changes very small in the UV range as well)
wedged window (also fused silica, n is quite flat in the UV zone)
cylindrical lence (fused silica transmittance is quite flat in the UV zone, also index of refraction changes very small in the UV range as well)
wedged window (also fused silica, n is quite flat in the UV zone)