Quality Planoconvex lenses Planoconvex lenses are the simplest form of lens, used for focusing parallel rays of light to a point. These high quality planoconvex lenses are made from BK7 and B270 and are ideal for most high quality imaging and laser applications. Planoconvex lenses can also be used for a variety of other applications such as fibre optics and emitters etc. Most of the Planoconvex lenses are stocked uncoated or with a broadband AR coating for 450-900nm. Planoconvex lenses are also stocked with an alternative coating for use over 630-1100nm ranges with special care taken to optimise the transmission at 1064nm.
Knight Optical > Lenses > Planoconvex lenses - Quality Grade > AR coated 630-1100nm > 25 diameter (mm) Only UK and EU customers are charged VAT at 17.5%, customers outside the EU and EU customers based outside the UK who have a valid EU VAT number will not be charged VAT Bulk Discounts! Where (B) appears next to a price below, bulk prices are available, click the (B) button to view! PDF Part No. Focal length (mm) Material Back focal length (mm) Centre thickness (mm) Edge thickness (mm) Price Qty Buy LPI3225-AI2 31.5 B270 26.6 7.4 1.5 £33.00 LPI4025-AI2 40 B270 36.2 5.7 1.5 £32.50 LPI5025-AI2 50 B270 46.9 4.7 1.5 £31.50 LPI6325-AI2 63 BK7 60.4 4 1.5 £31.50 LPI8025-AI2 80 BK7 77.8 3.4 1.5 £31.50 LPI10025-AI2 100 BK7 98 3 1.5 £31.50 LPI12525-AI2 125 BK7 123.2 2.7 1.5 £31.50 LPI16025-AI2 160 BK7 158 2.5 1.5 £31.50 LPI20025-AI2 200 B270 198.5 2.3 1.5 £31.50 LPI25025-AI2 250 BK7 248.6 2.1 1.5 £31.50 LPI50025-AI2 500 BK7 498.8 1.8 1.5 £31.50 LPI100025-AI2 1000 BK7 998.9 1.7 1.5 £31.50 Knight Optical > Lenses > Planoconvex lenses - Quality Grade > AR coated 630-1100nm > 25 diameter (mm)
Specification   Material: BK7 (or B270), SF11 for lower spherical aberrations (See spherical aberration calculation section) Material Data: (see materials section)  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 (see quality section)
Specific requirements We can manufacture Planoconvex Lenses to any size or focal length at short notice, so if your requirements are not listed please contact us by telephone / fax or email: stockrequirement@knightoptical.co.uk Coating Planoconvex lenses with suffix "AV2" are coated on both faces with (Extended broad band multilayer antireflective coating <0.5%@450-900nm (see coatings section) Options available   · For shorter focal lengths in relation to your required diameter please see section biconvex   · Mounting (lenses up to 50mm dia)   · Special AR coating (see coatings section) See also Higher Quality: High-index planoconvex laser lenses & Precision aspheric lenses Larger sizes: Fire-polished biconvex lenses & Commercial achromatic doublets UV Lenses: UV-silica convex lenses Short FL and larger relative aperture: UV-silica convex lenses, Precision aspheric lenses & Commercial achromatic doublets Lower-cost lenses: Commercial convex lenses & Fire-polished biconvex lenses