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Towards high resolution pico-projector applications: Design improvements on MEMS scanning mirror

By: Yiu, C.; Chun Cheong Wong; Ho-Yin Chan; Wei Ma; Lee, F.C.S.; Yick Chuen Chan;

2011 / IEEE / 978-1-61284-777-1

Description

This item was taken from the IEEE Conference ' Towards high resolution pico-projector applications: Design improvements on MEMS scanning mirror ' Design and implementation of a micro scanning mirror for the application of WVGA resolution (848�80) pico-projector display is presently reported. A FEM model for damping coefficient analysis is built and shows a good agreement with experiment result. In addition, stress study for the torsional bar is performed to deal with fracture issue. With the consideration on damping coefficient and stress in torsional bar, the new designed and implemented micro scanning mirror has shown to have a > 6� scanning angle at 21kHz resonant frequency.