View Expansion Microscope based on Viewpoint Movement using a Galvano Mirror and Focus Adjustment using an Electrically Tunable Lens

Abstract

Previously, our research group developed a view expansion microscope based on the viewpoint movement using a galvanomirror. The previous view expansion microscope had a problem of the focal blur due to the change in the optical path length. In this paper, we develop a novel view expansion microscope using ana electrically tunable lens (ETL) and a galvanomirror. The focal blur of the view expansion microscope is improved by adjusting working distance using the ETL, and verify the effectiveness of the proposed system through observation experiment of the micro grid film.