Double Convex LensesOuter diameter: φ 20.37~ φ 20.40 Thickness: 5.56-5.66mm Send InquiryLive chatProduct DetailDouble Convex LensesShare:PREVIOUS:Double Concave LensesNEXT:Double Convex LensesRelated ProductsConacave-convex Aspheric LensesHigh Reflection Mirror CoatingSingle Layer AR CoatingPlastic Optical Holders H002Conacave-convex Aspheric LensesFixed Focal Length Lenses-f 3.1mm