This research is to develop a novel zoom lens system with a soft polymer materials, PDMS, which can be controlled by pneumatic pressure to adapt its shape and curvature to change effective focal length. Optical design of such soft zoom lens has been accessed to decide the optical specifications. After the mechanical assembly of soft zoom lens, the effective focal length of soft zoom lens with PDMS sphere lens can reach from 10 to 15% as the pressure activated from 0 to 0.02 MPa. Experimental results show that the zoom effects of the developed soft zoom lens are significantly affected by the shape and thickness of PDMS soft lens.
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