单词 | Rheinberg illumination |
释义 | Rheinberg illumination [`rīn´bǝrg i´lü·mǝ´nā·shǝn] OPTICS An illumination technique used in optical microscopes that is a modification of the dark-field method; the central disk is transparent and colored; an annulus of a complementary color fills the remaining condenser aperture; the specimen is seen in the color of the annulus against the background of the central disk. Also known as optical staining. |
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