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- W4318185124 abstract "Miniaturized vectorial beam steering mirrors are required in numerous applications like (i) LIDAR, (ii) diagnostic imaging or (iii) miniaturized therapeutic laser systems. To increase simultaneously static tilt angle (≥ ±5°) and mirror aperture (≥ 3mm) electro-dynamic driven MEMS vector scanners, actuated by moving magnet drives, were developed. Here, Fraunhofer IPMS uses a hybrid MEMS concept combining its experience in the fabrication of monolithic silicon 2D MEMS scanning mirrors with existing know-how in MEMS micro-assembly technologies. Two designs of electro-magnetic driven vectorial 2D MEMS scanners are presented, (i) a non-gimbaled 2D vector scanner with 8 mm mirror aperture and ≥ ±2° quasi-static tilt angle and (ii) a 2D vector scanner with gimble suspended moving magnet drive. The gimbaled electro-magnetic MEMS scanner has a 5 mm large aperture and enables large quasi-static tilt angles of ±13° on both scan axis. Eigenfrequencies are 142 Hz (X) and 124 Hz (Y) allowing non-resonant vectorial scanning with speeds up to 100…400°/s. A step response time < 10 ms is achieved in closed loop control for both axes. This hybrid electro-magnetic MEMS approach significantly expands the parameter space of the previous monolithic electro-static scanners." @default.
- W4318185124 created "2023-01-27" @default.
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- W4318185124 date "2023-03-15" @default.
- W4318185124 modified "2023-09-27" @default.
- W4318185124 title "2D MEMS vector scanning mirrors for LIDAR, medical imaging, and high laser power applications" @default.
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- W4318185124 doi "https://doi.org/10.1117/12.2668618" @default.
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