| Planoconvex lenses have one plane and one convex surface. Plano-convex lenses are normally made of a medium index crown glass such as BK7 or B270. Planoconvex lenses form a moderate quality image close to the axis but usually the chromatic aberration is serious. They are generally used as elements within a more complex lens system or optical instrument. Our stock planoconvex lenses are available from 2.5mm dia up to 100mm dia in a full range of focal lengths to meet most applications. Please also note these stock planoconvex lenses are available uncoated or AR coated for visible applications through to NIR applications, including AR coated for telecoms IR applications. We can offer custom planoconvex lenses to meet your requirements or alternatively edge stock lenses for a quick turnaround, please enquire Specifications: | Material: | BK7 SF11 for lower spherical aberrations | | Diameter: | +0.0 / -0.10mm (  63mm) +0.0 / -0.15mm ( > 63mm) | | Centring Accuracy: | < 0.1mm (F.L 40mm) < 2.5mrad (F.L > 40mm) | | Focal Length: | ± 0.2% (<10mm) ± 2.0% (10-1000mm) ± 5.0% (>1000mm) | | Centre Thickness: | ± 0.35mm | | Surface Quality: | <40-20 scratch/dig | | 
Planoconvex Lenses - Quality Grade
