ULTRA-PRECISION OPTICS & SPDT
SPDT Alvarez Variable-Focus Lens Diamond Turning Calculator
Calculate cubic polynomial freeform surface sag ($z(x,y)$), lateral displacement focal power range ($\Delta P$), Fast Tool Servo (FTS) dynamic acceleration demand, and 3D diamond tool nose normal compensation.
1. Optical & Alvarez Freeform Specs
Governs surface cubic curvature steepness ($z = A(xy^2 + rac{1}{3}x^3)$).
Optical clear diameter of the Alvarez lens element.
Relative transverse shift between the two complementary lens elements.
e.g., PMMA (1.491), Zeonex E48R (1.531), Germanium (4.0).
Determines FTS oscillation frequency ($f = ext{RPM}/60$).
2. Optical Power & SPDT Dynamic Outputs
Optical Power Shift (ΔP)
0.00 D (Diopters)
Peak Surface Sag (Z_pv)
0.00 µm
FTS Dynamic Accel (a_max)
0.0 m/s²
FTS Bandwidth Demand
0.0 Hz
3. Alvarez Cubic Sag Profile & Wavefront Phase
Deep Ultra-Precision Fabrication Guide: Explore our complete SPDT Diamond Turning & Freeform Alvarez Lens Guide covering 3D tool nose normal compensation, form accuracy preflight, and spiral toolpath generation.
Order Precision Optical Vector Toolpaths
Convert 2D phase maps, aperture contours, and alignment fiducials into pristine vector packages with 1:1 metric coordinates.
Convert Optical Vector →