Sapphire Bi Convex Lens 25.4mm Finite Conjugate Lens Antireflection Coatings

Overview:

Double-Convex (DCX) Lens, also referred to as bi-convex lens, has two positive, symmetrical faces with equal radii on both sides. These lenses are generally recommended for finite imaging applications. Bi-convex lenses are most suitable where the object and image are on opposite sides of the lens and the ratio of the image and object distances (conjugate ratio) is between 0.2 and 5. Star Optic provides double-convex lenses in a variety of substrates and anti-reflection coating options.

General Specifications Of N-BK7 Double Convex (DCX) Spherical Lens:

Material	N-BK7, UV FS, N-SF11, CaF2, Si, Ge, ZnSe, Sapphire
Design Wavelength	546.1nm
Surface Flatness	N<3(0.5)@632.8nm
Surface Quality	60/40 scratch-Dig
Diameter Tolerance	+0/-0.2mm
Thickness Tolerance	±0.2mm
Centration	<3 arc minutes
Focal Length Tolerance	±2%
Clear Aperture	>90%
Chamfer	Protective<0.5mmx45°

Standard ProductsOf N-BK7 Double Convex (DCX) Spherical Lens:

Coating Options Of N-BK7 Double Convex (DCX) Spherical Lens:

Star Optic's above standard double convex spherical lenses are uncoated. In order to reduce the amount of light reflected from each surface of the lens, antireflection coatings including singer layer MgF2, multi-layer AR coating, Broadband multi-layer AR coating and Dual wavelength AR coating are also available.

Single Layer MgF2 Coating	Multi-layer Anti-Reflective Coating
Boradband Anti-Reflective Coating	Dual Wavelength Anti-Reflective Coating

Mounting Options For Double Convex (DCX) Spherical Lens:

Star Optic's above standard double convex spherical lenses are not mounted. However, we can provide fixed mount and adjustable mount for our lenses.

Custom Your Own Lens:

You have your full design freedom, and we are able to work with complex designs to get you exactly what you need including optical design, mechanical design and optical coating design.