Abstract
This manuscript presents design considerations and testing of a 3D printed lens with an outer diameter of 0.5mm. Off-the-shelf GRIN and half-ball lenses with the same outer diameter were used to compare the angular field of view and resolution at object distances between 5mm and 100mm. Results show the performance of this 3D printed optic is between that of the half-ball lens and the GRIN lens with the possibility for improvement. This opens opportunities in the sub-millimeter, refractive optics space. Our goal is to utilize 3D printed lenses in a sub-millimeter diameter endoscope for in vivo imaging.
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