CaF2 Double Convex Lens optical lens

Our company can process ordinary spherical mirrors with different specifications, radii and base materials, such as calcium fluoride flat convex Spherical Mirror, calcium fluoride flat concave spherical mirror, calcium fluoride biconvex spherical mirror, calcium fluoride biconvex spherical mirror, calcium fluoride crescent spherical mirror and so on.

Material: K9, BK7, FS, UVFS, CaF₂, ZnSe

Diameter:3mm-200mm±0.05mm

Center Thickness Tolerance:±0.05mm

Lens Alignment Error:≤3min

Surface Accuracy:λ/ 10 @

Surface Quality:40/20. 60/40. 80/60

Effective Caliber: 90%

Example with BK7 material：These N-BK7 biconvex lenses are available uncoated or with one of five antireflection coatings (-A, -AB, -B, -C, or -D), which reduces the amount of light reflected from each surface of the lens (see the Selection Guide table below for coating option). Since approximately 4% of the incident light is reflected at each surface of an uncoated substrate, the application of an AR coating improves transmission, which is important in low-light applications, and prevents the undesirable effects (e.g., ghost images) associated with multiple reflections. Having optics that are AR coated on both surfaces is particularly desirable for applications utilizing multiple optical elements. Please see the Graphs tab for additional coating information.

N-BK7 Double- Convex Lens Selection Guide
Coating name	wavelength band
Uncoated	Uncoated
A Coating	350nm-700nm
AB Coating	400nm-1100nm
B Coating	650nm-1050nm
C Coating	1050-1700nm
D Coating	1650nm-3000nm

Other series products：

  Concave Lens    Achromatic Lens   Ball Lens  Silicon Window Zinc Selenide Window Wedge Optical Window