TY - GEN
T1 - A novel dual screen projection system using balance-type micromirror with piezoelectric actuator
AU - Shih, M. T.
AU - Shen, S. C.
AU - Chang, S. J.
AU - Huang, H. J.
PY - 2011/9/1
Y1 - 2011/9/1
N2 - This paper presents an innovative dual screen projection system (DSPS) to solve the problem of existing micro-projectors only being able to project a single small picture. Therefore, this study designed a balanced double micro-mirror synchronous scanning mechanism using LIGA-like technology for dual screen projection. The DSPS was composed of balance-type dual micro-mirrors as fast axis, an eccentric slow axis mechanism, and slender piezoelectric actuators. For the balance-type dual projection structure, two micro-mirrors are connected using a -shape beam, so that both micro-mirrors can synchronous scanning form motion behaviors approximate to a balance. The experiments demonstrated when a voltage of 10Vpp was applied, the scanning angle of the slow axis and the fast axis were respectively 5.6° and 6.8°, and their driving frequencies were respectively 7.168kHz and 9.126kHz. The DSPS were applied a voltage of 10Vac matched with a DC voltage of 1V and integrated the fast axis mold and slow axis mold, so as to simultaneously project dual rectangular and dual round pictures. The study achieves the function of a synchronous display of two images. Therefore, this DSPS is well suited for application to portable projection equipment in the future.
AB - This paper presents an innovative dual screen projection system (DSPS) to solve the problem of existing micro-projectors only being able to project a single small picture. Therefore, this study designed a balanced double micro-mirror synchronous scanning mechanism using LIGA-like technology for dual screen projection. The DSPS was composed of balance-type dual micro-mirrors as fast axis, an eccentric slow axis mechanism, and slender piezoelectric actuators. For the balance-type dual projection structure, two micro-mirrors are connected using a -shape beam, so that both micro-mirrors can synchronous scanning form motion behaviors approximate to a balance. The experiments demonstrated when a voltage of 10Vpp was applied, the scanning angle of the slow axis and the fast axis were respectively 5.6° and 6.8°, and their driving frequencies were respectively 7.168kHz and 9.126kHz. The DSPS were applied a voltage of 10Vac matched with a DC voltage of 1V and integrated the fast axis mold and slow axis mold, so as to simultaneously project dual rectangular and dual round pictures. The study achieves the function of a synchronous display of two images. Therefore, this DSPS is well suited for application to portable projection equipment in the future.
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U2 - 10.1109/TRANSDUCERS.2011.5969714
DO - 10.1109/TRANSDUCERS.2011.5969714
M3 - Conference contribution
AN - SCOPUS:80052114958
SN - 9781457701573
T3 - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
SP - 562
EP - 565
BT - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
T2 - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
Y2 - 5 June 2011 through 9 June 2011
ER -