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 > Quality planoconvex lenses Uncoated This is the section containing Uncoated. AR coated 450-900nm This is the section containing AR coated 450-900nm. AR coated 630-1100nm This is the section containing AR coated 630-1100nm. 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 Knight Optical > Lenses > Quality planoconvex lenses
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