MgF2 Coated Plano-Concave Lenses

MgF2 Coated Plano-Concave Lenses

Our plano-concave lenses coated with a single layer of MaF2 AR coating @550nm are capable of providing <1.75% reflectance per surface for the 400-700nm wavelength band and AOI 0° angle of incidence, which effectively reduces the reflected light on the surface of the plano-concave lens and improves the light transmission performance of the lens for the specified wavelength range and angle of incidence.

MaF2 (magnesium fluoride) is a commonly used anti-reflective coating material with excellent anti-reflective properties at specific wavelengths. Here, the coating is designed to achieve optimum anti-reflection at 550 nm but also maintains low reflectivity over a wide wavelength range of 400-700 nm.

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Type No. Data sheet MaterialDiameter (mm)CoatingEFL (mm)CT (mm)

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Diameter (mm)

0 200

EFL (mm)

-1000 1000

Material

BK7 or equivalent
UVFS
H-F4
H-K51

Coating

Uncoated
MgF2 AT 550nm
BBAR Ravg<0.35% AT 420-680nm
BBAR Ravg<0.8% AT 400-900nm
BBAR Ravg<0.5% AT 630-1100nm
BBAR Ravg<0.5% AT 750-1500nm

A plano-concave lens is an optical element featuring a flat surface on one side and a concave surface on the other. It is widely used in various industries. Its design principle enables light to refract in a specific manner and form converged or diverged beams based on the curvature of the concave surface. By altering the direction and divergence of light, these lenses play a vital role in optical systems.


MgF₂ coating significantly enhances anti-reflection performance by effectively reducing the reflection of light on the surface of the lens substrate, thereby increasing light transmittance. In fields such as optical components and instruments, MgF₂ coating is widely used to minimize reflection losses and improve imaging quality and efficiency of the system. Therefore, MgF₂-coated plano-concave lenses have become ideal choices for high-precision spectroscopy, imaging systems, laser optics, and other fields.


CLZ Optics Co., Ltd. specializes in the processing, manufacturing, and sales of plano-concave lenses. We provide a complete product catalog that includes MgF₂ anti-reflection coated plano-concave lenses to meet the diverse needs of our customers. You can browse our product catalog on this page to select the lens that best suits your application requirements.