The Double Convex Lens

The Double Convex Lenses are made of BK7 material, which are manufactured with an identical convex surface on both sides of the lens. The Double Convex lenses have positive focal lengths and form both real and virtual images. We also provide precision grade Double Convex lenses with tighter manufacturing tolerances



Material: BK7
Design Wavelength: 546.1nm, n=1.518721
Diameter Tolerance: +0.0/-0.1mm
Paraxial Focal Length: ±2%
Centration: 3 arc minutes
Surface Figure : l/4 @ 632.8 nm
Surface Quality: 60/40
Clear Aperture: >80%
Bevel: <0.25mm X 45°
Coating: Uncoated