Case Studies

Real optical-design workflows and performance benchmarks, run in LensHH-LT.

The 20-degree cat's-eye pupil and its best-fit vignetting ellipse, before and after aperture optimization

Vignetting factors, and why we optimize the apertures instead

What vignetting and vignetting factors actually are, why they’re awkward to carry through a global optimization — and how varying the clear-aperture semi-diameters instead keeps a Cooke triplet realizable while sharpening its off-axis image.

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GPU pre-screen merit-evaluation throughput across NVIDIA GPUs

LensHH-LT · Performance

One kernel, laptop to H100

The same bit-identical merit function on eight systems — from a fanless laptop to a datacenter H100. The GPU value pre-screen reaches ~446k evaluations/second; the CPU runs the analytic-Jacobian polish.

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Lens layout after synthesis by saddle-point construction — singlet plus cemented doublet

LensHH-LT · Synthesis

From a single BK7 lens to a 3-element design

Synthesis by Saddle-Point Construction grows a biconvex BK7 singlet into a singlet + cemented doublet, dropping the merit function ~210× in two clicks — discovering the topology without a human picking it.

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