Assertion: meniscus lens | /r/CapableOf | obtain exactly zero optical power
Facets:
Source sentences:
text: To obtain exactly zero optical power, a meniscus lens must have slightly unequal curvatures to account for the effect of the lens' thickness.
text: To obtain exactly zero optical power, a meniscus lens must have slightly unequal curvatures to account for the effect of the lens' thickness.