Assertion: modern eyepiece | /r/HasAspect | anti-reflection coatings
Facets:
value: to combat this
type: PURPOSE
value: to the elements
type: TRANSITIVE-OBJECT
Source sentences:
text: Most modern eyepieces have anti-reflection coatings to the elements to combat this; these coatings may give a purplish tint to the lenses when looked at obliquely.