Design Wavelength | 780 nm | Magnification | infinite |
Numerical Aperture | 0.15 | Window Thickness | 0.25 mm |
Clear Aperture | 5.50 mm | Laser Window Material / Index | N-BK7/1.5 |
Effective Focal Length | 18.40 mm | Glass | H-LAK54 |
Working Distance | 17.13 mm | Surface Quality | 60-40 Scratch-Dig(Entire Bulk Material) |
A280-A | |||||||
A280TM-A |
Vd number | 51.05 |
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CTE (10-6 / °C) | 5.2 |
Thermo optic coefficient (10-6 / °C) (Δn/ΔT) | 6.7 |
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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 |