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Sensors 2016, 16(5), 675; doi:10.3390/s16050675

Image Quality Analysis and Optical Performance Requirement for Micromirror-Based Lissajous Scanning Displays

State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Haidian District, Beijing 100084, China
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Academic Editor: Vittorio M. N. Passaro
Received: 26 January 2016 / Revised: 28 April 2016 / Accepted: 29 April 2016 / Published: 11 May 2016
(This article belongs to the Section Physical Sensors)
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Abstract

Micromirror-based scanning displays have been the focus of a variety of applications. Lissajous scanning displays have advantages in terms of power consumption; however, the image quality is not good enough. The main reason for this is the varying size and the contrast ratio of pixels at different positions of the image. In this paper, the Lissajous scanning trajectory is analyzed and a new method based on the diamond pixel is introduced to Lissajous displays. The optical performance of micromirrors is discussed. A display system demonstrator is built, and tests of resolution and contrast ratio are conducted. The test results show that the new Lissajous scanning method can be used in displays by using diamond pixels and image quality remains stable at different positions. View Full-Text
Keywords: micromirror; Lissajous scanning display; diamond pixel; resolution; contrast ratio micromirror; Lissajous scanning display; diamond pixel; resolution; contrast ratio
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Du, W.; Zhang, G.; Ye, L. Image Quality Analysis and Optical Performance Requirement for Micromirror-Based Lissajous Scanning Displays. Sensors 2016, 16, 675.

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