Assertion: microscope's eyepiece | /r/HasProperty | blue fringe
Facets:
value: around their field diaphragm
type: LOCATION
Source sentences:
text: These eyepieces are distinguished by a blue fringe around their field diaphragm when the eyepiece is used in brightfield.
text: These eyepieces are distinguished by a blue fringe around their field diaphragm when the eyepiece is used in brightfield.