Micromachined two dimensional lens scanner with large aperture beam

Abstract

This work present a novel approach for miniaturized optical scanning using the two-axis MEMS lens scanning system with large beam diameter of 0.6mm. A millimeter aspheric glass lenses are integrated on electrostatic MEMS actuators to fold optical path. By integrating optical components perpendicularly on MEMS actuators, more compact device size along the optical axis is accomplished within 2mm. The scanning angle of 4.6° and 5.3° at the scanning speed of 276.5Hz and 294.4Hz for x-scanning and y-scanning respectively are achieved, when actuated by only DC 5V and AC peak to peak 10V biased resonance excitation.