optical microscope dark-field microscope A piece of apparatus, consisting of an eyepiece, an objective lens, a condenser lens, stage, and light source, which collects electromagnetic radiation in the visible range. An opaque disc is placed underneath the condenser lens, so that only light that is scattered by objects on the slide can reach the eye. dark field optical microscope CHMO:0002236 https://orcid.org/0000-0001-5985-7429 dark-field optical microscope dark field microscope 2009-07-31T01:56:03Z