In this paper the authors compare the performance and optical quality of two types of adaptive fluidic silicone-membrane lenses. The membranes feature either a homogeneous thickness, or it is shaped resulting in an inhomogeneous cross-section. The lens systems incorporate a piezo actuator which is operated in a regime of ±40 V. The shaped membrane lenses show lower wave front errors than the planar ones, down to 24 nm. However, the system with a planar membrane achieves a larger refractive power ranging from +19 to -14 dpt. It also shows a shorter full scale response time (tplanar = 23.9 ms) compared to the shaped membrane (tshaped = 35.4 ms).
Reference:
Schneider, F, Waibel, P and Wallrabe, U. 2009. Adaptive silicone-membrane lenses: planar vs. shaped membrane. IEEE Conference on Optical MEMS and Nanophotonics 2009, Clearwater Beach, USA, 17-20 August 2009, pp 39-40
Schneider, F., Waibel, P., & Wallrabe, U. (2009). Adaptive silicone-membrane lenses: planar vs. shaped membrane. IEEE. http://hdl.handle.net/10204/3953
Schneider, F, P Waibel, and U Wallrabe. "Adaptive silicone-membrane lenses: planar vs. shaped membrane." (2009): http://hdl.handle.net/10204/3953
Schneider F, Waibel P, Wallrabe U, Adaptive silicone-membrane lenses: planar vs. shaped membrane; IEEE; 2009. http://hdl.handle.net/10204/3953 .
