| abstract |
(57) Abstract The present invention relates to the analysis of cytological material. Specifically, the present invention provides a stain and a method for producing the stain, a method for staining cells for cytological or histological analysis, and contrasting the nuclear portion of the cell with the cytoplasmic portion, and A system and method for illuminating a cytological sample. The analysis may be automated or manual. The invention also includes a first light source having a first wavelength to confirm that the stain has been used in the cytological sample, and a second light source to observe the cytological sample. An optical device illumination system, comprising: a second light source, wherein the first wavelength is different from the second wavelength, and a second light source. |