Plano-concave cylindrical lenses feature one flat and one concave cylindrical surface, designed for diverging collimated light into a line or expanding beam coverage.
They are widely used in laser beam expanders, optical shaping systems, and scientific research.
LUMINA offers various materials, wavelength ranges, and coating options, with full precision customization.
Material: H-K9L, N-BK7, fused silica, CaF₂, ZnSe, etc.
Diameter：0.5mm—300mm
Diameter tolerance：±0.1mm to±0.02mm
Focal length range：-10mm to -1000mm(Typical)
Focal length tolerance：±1% to±0.5%
Centration：< 3 arc min to <10 arc sec
Clear aperture：>85% to >95%
Surface quality：MIL 60-40 to MIL 10-5
Surface accuracy:up toλ/10, Ra < 5 nm
Coating options: AR coatings or custom coatings upon request
Focal length refers to the powered axis only. The orthogonal axis has no optical power.
Specifications may vary depending on lens geometry, diameter, focal length, and material.
Diverge or expand light beams
UV to IR material availability
Customizable dimensions and coatings
Suitable for beam expansion and shaping
