High pressure boiler tube use classification

High-pressure boiler tube is used for heating surface pipe of low and medium pressure boiler (working pressure is generally not more than 5.88Mpa, working temperature is below 450°C); it is used for high pressure boiler (working pressure is generally above 9.8Mpa, working temperature is from 450°C to 650°C) Between the heating surface tube, economizer, superheater, reheater, petrochemical industrial pipe, etc.

Double-Convex Spherical Lens

Double-Convex Lens, also named Bi-Convex Lens,composing of two convex surfaces, has a positive focal length. DCX Lens is most suitable where the object and image are on opposite sides of the lens and the ratio of the image and object (conjugate ratio) distances is between 0.2 to 5. It is used in beam expanders,projection optics systems, optical viewers applications etc.

We also supply kinds of plano-convex spherical lenses,plano-concave spherical lenses,bi-convex spherical lenses,bi-concave spherical lenses,meniscus spherical lenses,special spherical lenses,achromatic spherical lenses,ball lenses,sphere lenses etc..

Specification of our Spherical Lens as follow:
*Material: BK7,fused silica,MgF2,BaF2,CaF2,ZnSe,ZnS,Ge or other optical crystals
*Dimension Tolerance +0.0 -- -0.1mm
*Center Thickness +/-0.1mm
*Focal Length Tolerance+/-1%
*Surface Quality:60/40
*Surface Figure: lambda/2 at 633nm on plano side
*Clear Aperture >90%
*Chamfer 0.25mm at 45 degree typical
*Coating : AR coating options available :MgF2, VIS 0°, VIS-NIR, NIR I, and NIR II

Custom Wide Variety of Diameters and Focal Lengths.

Double-Convex Spherical Lens,Double-Convex Lenses,Double-Convex Ar Coated Spheric Lenses,Double-Convex Spheric Lens

China Star Optics Technology Co.,Ltd. , https://www.opticsrealpoo.com