Abstract
Confocal microscopy provides optical sectioning that is invaluable for many applications, most notably imaging into thick samples. However, the high cost of commercial confocal microscopes limits uses to specialized research and clinical settings. We present a minimalistic line-scanning confocal microscope costing less than $6,500 with optical performance comparable to a commercial laser scanning system. The optical sectioning and imaging performance are shown through measurement of the axial line-spread function and imaging of biological samples of varying thickness. Comparison is made to commercial widefield and confocal microscopes. The low cost of goods and optical sectioning capability of this microscope will allow the use of confocal microscopy in additional research and educational settings.
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