Basket (0)
Knight Optical(UK) Ltd - - +44 (0)1622 859444

BK7/SF11 planoconvex lenses

What are you looking for in Stock?

Planoconvex lenses have one plane and one convex surface and have a positive focal length. Planoconvex lenses are typically used for focusing or collecting light in optical systems. Plano-convex lenses are normally made of a medium index crown glass such as BK7 or equivalent or BaK4 or equivalent however for lower spherical aberrations lenses high index glass is used typically SF11 or equivalent. 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 in imaging systems, lasers and detectors.

Knight Optical 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. We aare able to supply alternative coatings including AR coated for telecoms IR applications on request. 

We can offer custom planoconvex lenses to meet your requirements or alternatively edge stock lenses for a quick turnaround, please enquire.

Material: BK7 or equivalent, SF11 or equivalent(for lower spherical aberrations)
Diameter: +0.0 / -0.10mm (≤ 65mm) +0.0 / -0.15mm ( > 65mm)
Centring accuracy: < 5 arc min
Focal length: ± 0.2% (<10mm) ± 2.0% (10-1000mm) ± 5.0% (>1000mm)
Centre thickness: ± 0.2mm
Surface quality: <40-20 scratch dig

Planoconvex lenses with suffix "AV2" are coated on both faces with:
Extended broadband multilayer antireflective coating <0.5%@450-900nm

And are subject to availability


Planoconvex lenses with suffix "AV2" are coated on both faces with:
Extended broadband multilayer antireflective coating <0.5%@450-900nm

Stock Optics

Get a Custom Quote

Part No. CoatingFocal length
Material Price
LPV0304 Uncoated5.44.0Bak4 or Equivalent £13.95
LPV0504 Uncoated5.04.0N-BK7 or equivalent £18.95
LPV0806 Uncoated8.06.0N-BK7 or equivalent £13.95
LPV0806-AV2 AR coated (Ext.Vis 450-900nm)8.06.0N-BK7 or equivalent £25.95
LPV10025 Uncoated100.025.0N-BK7 or equivalent £15.95
LPV1006 Uncoated10.06.0N-BK7 or equivalent £13.95
LPV12525 Uncoated125.025.0N-BK7 or equivalent £15.95
LPV20025 Uncoated200.025.0N-BK7 or equivalent £15.95
LPV25025 Uncoated250.025.0N-BK7 or equivalent £15.95
LPV2525 Uncoated25.025.0N-SF11 or equivalent £15.95
LPV2525-AV2 AR coated (Ext.Vis 450-900nm)25.025.0N-SF11 or equivalent £20.95
LPV4025 Uncoated40.025.0N-BK7 or equivalent £15.95
LPV50025 Uncoated500.025.0N-BK7 or equivalent £15.95
LPV5010 Uncoated50.010.0N-BK7 or equivalent £13.95
LPV5010-AV2 AR coated (Ext.Vis 450-900nm)50.010.0N-BK7 or equivalent £18.95
LPV5025 Uncoated50.025.0N-BK7 or equivalent £15.95
LPV15025 Uncoated150.025.0N-BK7 or equivalent £15.95
LPV1512 Uncoated15.012.5N-BK7 or equivalent £13.95
LPV2512 Uncoated25.012.5N-BK7 or equivalent £13.95
LPV4012 Uncoated40.012.5N-BK7 or equivalent £13.95
LPV0138 Uncoated6038N-BK7 or equivalent £18.20
LPV0260 Uncoated6060N-BK7 £18.95
LPV5007-AV2 AR coated (Ext.Vis 450-900nm)50.07.1N-BK7 or equivalent £16.95

Get a Custom Quote

Get in touch

Our Multi-Lingual Sales Team are here to help with your requirments:

UK +44 (0)1622 859444
UK +44 (0)1622 850614
UK +44 (0)1622 851078
+1 401 583 7846

International Shipping

We are able to ship to most countries at good rates, please click here for more info.

This site requires cookies in order to work properly. By continuing to use this site you are agreeing to our cookies policy.