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Electromagnetic biaxial vector scanner using radial magnetic field

Title
Electromagnetic biaxial vector scanner using radial magnetic field
Authors
Han, AleumCho, Ah RanJu, SunaAhn, Si-HongBu, Jong-UkJi, Chang-Hyeon
Ewha Authors
지창현
SCOPUS Author ID
지창현scopus
Issue Date
2016
Journal Title
OPTICS EXPRESS
ISSN
1094-4087JCR Link
Citation
vol. 24, no. 14, pp. 15813 - 15821
Publisher
OPTICAL SOC AMER
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We present an electromagnetic biaxial vector-graphic scanning micromirror. In contrast to conventional electromagnetic actuators using linear magnetic field, proposed device utilizes a radial magnetic field and uniquely designed current paths to enable the 2 degree-of-freedom scanning motion. As the radial field is generated by concentrically assembled magnets placed under the scanner die, large driving torque can be generated without the aid of hermetic packaging and relatively small device volume can be achieved. Mechanical half scan angle of 6.43 degrees and 4.20 degrees have been achieved at DC current of 250mA and 350mA for horizontal and vertical scans, respectively. Forced actuation along both scan axes has been realized by feedback control. (C)2016 Optical Society of America
DOI
10.1364/OE.24.015813
Appears in Collections:
엘텍공과대학 > 전자공학과 > Journal papers
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