varifocal
adjective
mainlyUKuk/ˌveə.riˈfəʊ.kəl/us/ˌver.iˈfoʊ.kəl/(USprogressive)used to refer to alens(=curvedpieceofglass)that you canlookthrough andseethingsclearlythat are atvariousdifferentdistances:
I have towearthickvarifocalglasses.我必须戴上厚厚的变焦眼镜。
Thelensesare varifocal, with threemainareasthat areblendedinto one toletyouseesharplyat alldistances.镜片是变焦的,三个主要区域融为一体,让你在任何距离都能看清。
- I can't get used to my new varifocalglasses.
- Somecameralensesare varifocal to give animprovedperformance.
- Frames aredesignedfor awiderangeofprescriptions,includingbifocaland varifocallenses.