Point spread function robustness in galvanometer beam scanning

  • Eric Joshua Vincent Capuloy Reyes National Institute of Physics, University of the Philippines Diliman
  • Wynn Dunn Gil Dugang Improso National Institute of Physics, University of the Philippines Diliman
  • Giovanni Alarkon Tapang National Institute of Physics, University of the Philippines Diliman

Abstract

We describe the point spread function (PSF) of an optical system with a galvanometer scanner mounted with a planar mirror. For each mirror rotation, minimal translation along the x and z axes were observed. Meanwhile, rapid increase in spread were also found along these axes. Using the Linfoot's criteria of merit, we characterize the aberration of each point spread function as the mirror is tilted. We find that from this characterization, the limits of the galvanometer swing can be determined. For example, given that the chosen tolerance for a photopolymerization is 25% similarity of the transverse profile, the swinging angle limit must be ±20°. With the same tolerance for the axial profile, the limit must be ±10°.

Published
2019-05-22
How to Cite
[1]
E. J. V. Reyes, W. D. G. Improso, and G. Tapang. Point spread function robustness in galvanometer beam scanning, Proceedings of the Samahang Pisika ng Pilipinas 37, SPP-2019-PA-51 (2019). URL: https://paperview.spp-online.org/proceedings/article/view/SPP-2019-PA-51.