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Title:
METHOD FOR CORRECTING IMAGE DISTORTION DURING OPTICAL FIBER SCANNING, AND OPTICAL FIBER SCANNER
Document Type and Number:
WIPO Patent Application WO/2019/184624
Kind Code:
A1
Abstract:
Disclosed is a method for correcting image distortion during optical fiber scanning. The optical fiber scanning is raster scanning comprising: a fast-axis driver (2) driving an optical fiber (1) to vibrate in an X direction, and a slow-axis driver (3) driving the optical fiber to vibrate in a Y direction that is perpendicular to the X direction. A response in the Y direction is superposed on the fast-axis driver or the slow-axis driver, such that the response in the Y direction caused by the fast-axis driving is offset by the response superposed in the Y direction. By introducing an equal quantity reverse to that of the response in the Y direction caused by the fast-axis driving, the offset effect is generated to offset an out-of-plane response in a fast axis, so that the response in the fast axis is a horizontal straight line. At this point, an area in which the image is displayed is a regular rectangle, namely, the out-of-plane response is corrected. Therefore, accurate control of a scanning trace is realized, and the display resolution and performance of a scanned image are improved. Further disclosed is an optical fiber scanner.

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Inventors:
YAO CHANGCHENG (CN)
SONG HAITAO (CN)
ZHOU XUDONG (CN)
Application Number:
PCT/CN2019/075483
Publication Date:
October 03, 2019
Filing Date:
February 19, 2019
Export Citation:
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Assignee:
CHENGDU IDEALSEE TECHNOLOGY CO LTD (CN)
International Classes:
G02B26/10
Foreign References:
CN103782223A2014-05-07
CN201537081U2010-08-04
CN105899120A2016-08-24
CN107505704A2017-12-22
CN108803012A2018-11-13
CN206990919U2018-02-09
CN101755233A2010-06-23
Attorney, Agent or Firm:
YUHONG INTELLECTUAL PROPERTY LAW FIRM (CN)
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