72 mm Diameter mounted double-concave lens

Double-Concave Lens, also named Bi-Concave Lens,  double-concave Spherical Lens are used for image reduction and to spread light. The bi-Concave is best used when the input beam is converging. Double-concave spherical lens is used in beam expanders, Projection optics systems, optical viewers and optical character readers etc.

Simple double-concave lens kits are an ideal complement to any engineering or R&D laboratory.Offered with a variety of coating options, each lens kit contains our highest quality optics with various effective focal lengths. Available uncoated or with broadband anti-reflection (BBAR) coating options on the spherical lens. Simple lens kits feature a selection of Plano-Convex Lenses (PCX), Double-Convex Spherical Lens,(DCX), Plano-Concave Spherical Lens (PCV), and double-concave (DCV) lenses. 

Blackening the edges of the spherical lens will reduce stray-light and increase the signal-to-noise ratio in an optical system.You'll see an improvement in your application. 

We manufacture various shape and special material optical spherical lens. BBAR coating,dichroic coating and super broad band anti-reflective coating available.

                                             Double-concave spherical lens

Specification of our Double-concave spherical lens, plano-concave spherical lens, Plano-Convex Spherical Lens and Meniscus Spherical Lens as follow:
*Material: BK7,fused silica,MgF2,BaF2,CaF2,ZnSe,ZnS,Ge or other Infrared Crystal Optical Lens.
*Dimension Tolerance +0.0 -- -0.1 mm 
*Center Thickness +/-0.1 mm 
*Focal Length Tolerance+/-1%
*Surface Quality:60/40 
*Surface Figure: lambda/2 at 633 nm on plano side 
*Clear Aperture >90%
*Chamfer 0.25 mm at 45 degree typical 
*Coating Optional 

Product Categories : Spherical Lens > Plano-Concave Spherical Lens