Lenses
Lenses
1、BK7 Negative Meniscus Lenses
Material: BK7 glass
Paraxial Focal Length: ±2%
Design Index: 1.5183±0.0005@546.1nm
Centration: 3 arc minutes
Diameter tolerance: +0.0,-0.15mm
Clear Aperture Diameter: 80%
Surface Quality: 60-40 scratch and dig
Surface Figure: λ/4@632.8nm
2、BK7 Meniscus Lenses
Material: BK7 glass
Paraxial Focal Length: ±2%
Design Index: 1.5183±0.0005@546.1nm
Centration: 3 arc minutes
Diameter tolerance: +0.0,-0.15mm
Clear Aperture Diameter: 80%
Surface Quality: 60-40 scratch and dig
Surface Figure: λ/4@632.8nm
3、Double-Concave Glass Lenses
Material: BK7 glass,UV grade fused silica
Paraxial Focal Length: ±1%(FL<1m), ±2%(FL>1m)
Centration: 3 arc minutes
Diameter tolerance: +0.0,-0.15mm
Clear Aperture Diameter: 80%
Center Thickness: ±0.2 mm
Surface Quality: 60-40 scratch and dig
Bevel: 0.25mmx45°
4、Double-Convex Glass Lenses
Material: BK7 glass,UV grade fused silica.
Paraxial Focal Length: ±1%(FL<1m), ± 2%(FL>1m)
Centration: 3 arc minutes
Diameter tolerance: +0.0,-0.15mm
Clear Aperture Diameter: 80%
Center Thickness: ±0.2 mm
Surface Quality: 60-40 scratch and dig
Bevel: 0.25mmx45°
5、Plano-Convex Lenses
Material: BK7 glass, UV grade fused silica, CaF2.
Paraxial Focal Length: ±0.1% (FL<1m), ± 2%(FL>1m)
Centration: 3 arc minutes
Diameter tolerance: +0.0,-0.15mm
Clear Aperture Diameter: 80%
Center Thickness: ±0.2 mm
Surface Quality: 60-40 scratch and dig
Bevel: 0.25mmx45°
6、Plano-Concave Lenses
Material:BK7 glass, UV grade fused silica, CaF2.
Paraxial Focal Length: ±1%(FL<1m), ± 2%(FL>1m)
Centration: 3 arc minutes
Diameter tolerance: +0.0,-0.15mm
Clear Aperture Diameter: 80%
Center Thickness: ±0.2 mm
Surface Quality: 60-40 scratch and dig
Bevel: 0.25mmx45°
7、Plano-concave Cylindrical Lenses
Material: BK7 glass, UV grade fused silica
Paraxial Focal Length: ±2%
Centration: 3 arc minutes
Diameter tolerance: +0.0,-0.2mm
Clear Aperture Diameter: 80%
Surface Quality: 60-40 scratch and dig
Bevel: 0.25mmx45°
8、Plano-convex Cylindrical Lenses
Material: BK7 glass, UV grade fused silica
Paraxial Focal Length: ±2%
Centration: 3 arc minutes
Diameter tolerance: +0.0,-0.2mm
Clear Aperture Diameter: 80%
Surface Quality: 60-40 scratch and dig
Bevel: 0.25mmx45°
