Fig. 5.

Lenslet array mount and the characterization of the lenslet array surface. Fig. (a). Photograph of the lenslet array in the rotation mount. Fig. (b). Photograph of the lenslet array through a stereomicroscope. Missing lenslets and defects can be seen and are easy to spot through the stereomicroscope. Fig. (c). Intensity map of lenslets taken with a white light interferometer. Individual lenslet dents and imperfections can be seen. Fig. (d). The surface profile acquired with the white light interferometer. Due to the lenslet curvature, the surface profile is incomplete for steep portions of the lenslets’ surfaces.