optical lens

The large Plano convex lens is a kind of lens. The large Plano convex lens is composed of a plane and a spherical surface. When focusing, the collimated beam should be incident on the curved surface of the lens, while when collimating, the point light source should be incident on the plane of the lens, the beam converges on the rear focus, and the point light source can also be converted into a collimated beam. Its characteristic is that the focal length is positive. The quality of the flat convex lens produced by our company is strictly controlled, and has been highly praised by customers with high-quality products and high-level after-sales service.

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

Example with BK7 material：These N-BK7 Plano-Convex 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 Plano-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：

Convex lens Ball lens  Rod lens Achromatic lens Colored glass fliter  Zinc Selenide Window