Плано Выпуклые Оптический объектив

Plano-convex Opticallens, also called positive lens, is used to converge incident light to a spot on the axis, at a certain distance behind the lens, which is knowed as focal length. It can form both real images and virtual images (for magnifier) on the two sides. The materials to make plano-convex lens can be BK7, Fused Cilica, sapphire and CaF2 etc., for different applications. This model are commonly applied in many devices including telescopes, collimators, magnifiers, optical transceivers, condensers and other optical display or imaging optical systems. AR/NIR or other coatings are available according to the applications. Specifications for reference: Material-------------------Fused cilica, BK7 Grade A or equivalent optical glasses Design Wavelength------546.1nm Diameter Tolerance------±0.1mm, ±0.15mm for Dia.≥75mm Paraxial Focus Length----±2% Centration----------------<3 arc minutes Clear Aperture------------>85% Surface Figure------------λ/4 at 632.8nm Surface Quality-----------60-40 scratch and dig Coatings-------------------Antireflection coatings or NIR coatings Bevel-----------------------A slight protective bevel, such as 0.25mm×45° (For different applications, there are various choices in the specifications, which must be determined according to users specific requirements.) Products include: →Achromatic lens →Meniscus Lens →Double-concave Lens →Plano-concave Lens →Double-convex Lens →Plano-convex Lens