Figure 3
Center-line thickness profiles of lens #3, in (a) the horizontal and (b) the vertical direction. The ideal value for the fitted curvature radius Rfit is 25 µm, equal to the curvature radius of the surface divided by the number of curved surfaces (two for the 50 µm lens). The residual is defined here as (parabolic fit − experimental data), the same as in Fig 2. |