20 mm N-BK7 Plano-concave Lens, AR Coated

Product description

The plano-concave lens made from N-BK7 material is ideal for applications such as projection and collimation. With a diameter of 20 mm and a surface quality of 20/10, this lens effectively spreads light and has a negative focal length, making it suitable for beam extension and optical system aberration correction. It is AR coated for enhanced performance across the 0.7-1.7 μm and 400-700 nm wavelength bands.

Key Features

Diameter: 20 mm for versatile integration in optical systems.
Surface quality of 20/10 ensures minimal light distortion.
AR coating enhances transmittance for improved optical performance.
Negative focal length allows for effective beam expansion.
Customizable options available for tailored applications.

Applications

Projection, Collimation

Specification Summary

Item	Value
Material	N-BK7
Shape	Plano-concave
Diameter	20 mm
Surface Quality	20/10
Coating	anti-reflective (AR)
Transmission bands	NIR (0.7-1.7 μm), VIS (400-700 nm)

Full Specifications

Parameter	Value
Type	concave lens
Customized Support	OEM, ODM, OBM
Warranty	3 Years
Weight	0.05
Flatness	lambda/4
Clear Aperture	Central 90%

FAQ

Can I get custom sizes for this lens?

Yes, the lens can be custom-made according to your specifications and drawings.

What is the minimum order quantity (MOQ)?

The MOQ is not specified, allowing for flexible ordering.