Design Wavelength | 780 nm | Magnification | Infinite |
Numerical Aperture | 0.55 | Window Thickness | 0.25 mm |
Clear Aperture | 4.95 mm | Laser Window Material / Index | N-BK7/1.5 |
Effective Focal Length | 4.51 mm | Glass | S-NPH1 |
Working Distance | 2.91 mm | Surface Quality | 60-40 Scratch-Dig(Entire Bulk Material) |
A230-A | |||||||
A230TM-A |
Vd number | 22.76 |
---|---|
CTE (10-6 / °C) | 8.3 |
Thermo optic coefficient (10-6 / °C) (Δn/ΔT) | -0.4 |
|
|
|
z | SAG as a Function of Y | A4 | 4th Order Aspheric Coefficient |
R | Radius of Curvature | A6 | 6th Order Aspheric Coefficient |
k | Conic Constant | A8 | 8th Order Aspheric Coefficient |
A2 | 2nd Order Aspheric Coefficient | An | nth Order Aspheric Coefficient |