Lens Definition · LDS 4.1
Progressive Freeform
SPH-3.25
CYL-0.75
AXIS178°
ADD+2.00
PD32.5 / 32.5
Base Curve4.50
Diameter75 mm
MaterialPoly 1.67
CoatingAR + Blue Cut
Optical map · mean power
Features
A canonical model for every lens.
LDS 4.1 Native
Full VCA-compatible LDS 4.1 with support for legacy 3.x formats.
Every Parameter
SPH, CYL, AXIS, ADD, PD, prism, base curve, diameter and material.
Coatings & Tints
AR, hard coat, blue cut, photochromic, polarized, mirror — all coded.
Progressive Designs
PAL corridor lengths, freeform maps and design libraries by manufacturer.
Machine Compatibility
Generate machine-ready job files for every major generator brand.
Standardization
One canonical model — the same order, spoken by every machine.
Validation
Range checks, prescription anomaly detection and warranty policies.
Versioned Spec
Every LDS change is versioned and diffed — audit-friendly and safe.