concave lens

concave lens. Rangeofwork:2.5mm--300mm. r>2.33mm SurfaceFigure:N=1-5. Irregulardegree:N=0.11 Surfacequality:105. Dimensiontolerance:+0/0.1mm CenterThickness:±0.02mm. Clearaperture:90%.. Centering:0.01mm. R<0.2%. T>99%. Metallic-membraneplanting(ARcoating)canbeavailabletovariouscolor. You just need to tell us your technial requirement.Please don't hesitate to contact us if you are interested in our optical products.It's a great pleasure to establish a happy and successful business relationship with you in a long term.We believe that through our effort,we'll beocme your reliable supplier and best cooperator of your business.