A novel dual screen projection system using balance-type micromirror with piezoelectric actuator

M. T. Shih, S. C. Shen, S. J. Chang, H. J. Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
Pages562-565
Number of pages4
DOIs
Publication statusPublished - 2011 Sep 1
Event2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 - Beijing, China
Duration: 2011 Jun 52011 Jun 9

Publication series

Name2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11

Other

Other2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
CountryChina
CityBeijing
Period11-06-0511-06-09

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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