Abstract
Very wide field of view imaging can be used in biology to infer statistical information on cell populations from a single-shot acquisition. In particular, for applications in hematology, fluorescence wide-field of view imaging could be an alternative to standard fluorescence flow cytometry methods; it can be useful to achieve standard blood tests, such a leukocyte count or leukocyte differential count. We will introduce two 30mm2 wide-field fluorescence imaging set-ups and compare their performances. Both systems achieve 1x magnification. The first one is based on a macro-photography lens. Although such a system optimizes the resolution and field of view, it suffers from its bulkiness. With the second system, we seek miniaturization while loosening the requirements on image quality. It is based on a lens-less approach with a fiber plate optical relay. The potential of the two systems for hematology analyzes will be illustrated with the imaging of labelled white blood cells.
© 2019 SPIE/OSA
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