Optics and Precision Engineering, Volume. 32, Issue 9, 1273(2024)
Design of fiber scanning Lissajous trajectory near-eye display system
To further reduce the size of head-worn displays (HWDs), a near-eye display system utilizing an asymmetric fiber cantilever has been developed, alongside a specific pixel division rule. This study explores the factors affecting the scanning trajectory, image reconstruction capabilities, display resolution, and frame rate of the system. The resonant frequencies in orthogonal directions are tailored for enhanced definition and faster frame rates, with calculated structural parameters for the asymmetric fiber cantilever. The display unit measures 2 mm in diameter and 19 mm in length, offering a resolution of 160×120 pixels at a 10 Hz frame rate, with an image reconstruction error rate of 0.002%. It can potentially reach a maximum resolution of 290×220 pixels and a frame rate of 95 Hz. A fiber-scanning near-eye display system has been constructed, employing a camera to document the experimental outcomes. These results confirm the display's efficacy and the promising future applications of asymmetric fiber cantilevers in HWDs.
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Tong WU, Xiangyu YANG, Jincong ZOU, Youwen LIU, Ling WANG, Jiming WANG, Yuangang LU, Chongjun HE. Design of fiber scanning Lissajous trajectory near-eye display system[J]. Optics and Precision Engineering, 2024, 32(9): 1273
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Received: Nov. 14, 2023
Accepted: --
Published Online: Jun. 2, 2024
The Author Email: WU Tong (wutong@nuaa.edu.cn), LIU Youwen (ywliu@nuaa.edu.cn)