Diffractive Optical Elements with a Large Angle of Operation Recorded in Acrylamide Based Photopolymer on Flexible Substrates

Figure 3

Angular selectivity curves for diffractive lenses with spatial frequency centred at 300 l/mm recorded in layers with thickness of 50 μm on a plastic flexible substrate, at range of angles: (a) 7°, (b) 10.5°, and (c) 14° before stacking.

(a)

(b)

(c)