Fluidic Zoom-Lens-on-a-Chip With Wide Field-of-View Tuning Range

Abstract

Integrated fluidic zoom-lens-on-a-chip with 5-mm lens aperture and less than 18-mm optical system physical length was demonstrated. The device was fabricated using standard microfabrication process. The zooming capability was achieved via focal length tuning instead of varying the lens distance. Zoom lens, telephoto, and reverse telephoto optical systems can be functionally integrated into one system on a chip without any additional hardware. The device shows a zoom ratio large than 2.83 and has a wide tuning range in its field-of-view from 10/spl deg/ to 80/spl deg/.