20x25 mm Fused Silica Plano-concave Lens, AR Coated

Product description

The plano-concave lens made of fused silica is ideal for applications requiring precise light manipulation, such as in optical systems for imaging and laser applications. With a focal length of 25 mm and a diameter of 20 mm, it provides excellent performance with a surface quality of 40/20. This lens is suitable for various wavelengths and can be customized to meet specific project requirements.

Key Features

Focal Length: 25 mm for effective light focusing.
Surface Quality: 40/20 ensures high clarity and minimal distortion.
Clear Aperture: >90% for optimal light transmission.
Tolerance: ±0.1 mm for precise fitting in optical assemblies.
Custom Sizes: Available in diameters from 20 mm to 25 mm.

Available Sizes

Diameter x Focal Length (mm)
20 x 25

Specification Summary

Item	Value
Material	Fused Silica
Shape	Plano-concave
Diameter	20 mm
Focal Length	25 mm
Surface Quality	40/20
Coating	anti-reflective (AR)

Full Specifications

Parameter	Value
Type	Convex Lens, Aspherical Lens, Concave Lens, Plano Convex Lens, Biconvex Lens
Customized Support	OEM, ODM, OBM
Warranty	1 Year
Weight	0.01
Focal Length Tolerance	±1%
Clear Aperture	>90%
Color	Clear transparent
Tolerance	±0.1mm
Surface Figure	lambda/2 @632.8nm
Centration	±3 arc minutes
Effective Focal Length	±5mm~±1000mm

FAQ

Can I get custom sizes?

Yes, this lens is available in custom sizes, specifically in diameters of 20 mm and 25 mm.

What are the tolerances for this lens?

The lens has a tolerance of ±0.1 mm and a focal length tolerance of ±1%.