50mm diameter optical double convex lens

Hengpu can provide or customize positive and negative lenses with different bands, focal lengths and Diameters Based on K9, aluminum and other materials to meet various commercial and scientific research purposes. Biconvex Lens can be used in microscope and other precision optical instruments. The quality of the lenticular lens produced by our company is strictly controlled, and has been highly praised by customers with high-quality products and after-sales service.

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

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

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