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Optical Plano Convex Lens



Plano-convex lens, 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.


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 @632.8nm

Surface Quality-----------60/40~40/20 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.)
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