An integrated fluidic adaptive zoom lens is demonstrated for what is believed to be the first time. A zoom lens was fabricated using an UV lithographic-galvanic-like process involving soft lithography and wafer bonding. The zooming capability of such a lens was achieved by varying the focal length instead of the distance between the lenses. A zoom ratio of greater than 2 was obtained for devices that are 8 mm thick and have a 20-mm lens diameter. Including the 30-mm image distance, the total physical length of the fluidic zoom lens was less than 43 mm. More-compact systems with a higher zoom ratio can be obtained by reduction of the aperture size.
© 2004 Optical Society of America
(080.3620) Geometric optics : Lens system design
(110.0110) Imaging systems : Imaging systems
(220.3630) Optical design and fabrication : Lenses
(230.3990) Optical devices : Micro-optical devices
(230.6120) Optical devices : Spatial light modulators
De-Ying Zhang, Nicole Justis, and Yu-Hwa Lo, "Integrated fluidic adaptive zoom lens," Opt. Lett. 29, 2855-2857 (2004)