Assertion: microscope's lense | /r/MadeOf | different types of glass
Facets:
value: with different indexes of refraction
type: OTHER
Source sentences:
text: These lenses are made of different types of glass with different indexes of refraction.
text: In England in 1733, the amateur optician Chester Moor Hall discovered that combining two properly shaped lenses made of two different kinds of glass minimized chromatic aberration.
text: These lenses are made of different types of glass with different indexes of refraction.