Table 1 Key parameters of the standard surface and the odd aspheric surface.
From: Printing special surface components for THz 2D and 3D imaging
C (curvature) (mm) | k (conic) | β1 (1th order) | β2 (2th order) | β3 (3th order) | |
|---|---|---|---|---|---|
Standard | − 117.8 | − 0.687 | None | None | None |
Odd asphere | − 25.5 | − 0.986 | − 0.071 | 0.015 | 1.148E−005 |
