Flat‐top illumination profile in an epifluorescence microscope by dual microlens arrays

@article{Coumans2012FlattopIP,
  title={Flat‐top illumination profile in an epifluorescence microscope by dual microlens arrays},
  author={Frank A. W. Coumans and Edwin van der Pol and Leon W.M.M. Terstappen},
  journal={Cytometry Part A},
  year={2012},
  volume={81A}
}
Low uniformity in illumination across the image plane impairs the ability of a traditional epifluorescence microscope to quantify fluorescence intensities. Two microlens arrays (MLAs) were introduced into the illumination path of two different epifluorescence microscope systems to improve the uniformity of the illumination. Measurements of the uniformity of illumination were performed with a CCD camera in the focal plane and with fluorescent beads in the image plane. In semi critical alignment… 
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