Calculation Tools - DeepLightSeek

Optical Tools

All-in-one optical design and analysis tools — lens calculation, ray tracing, parameter solving, beam expanding, NA and diffraction analysis, and more

Single Lens Focal Length Calculator

Enter lens parameters (radius of curvature, refractive index, center thickness) to calculate EFL, edge thickness and back focal distance using the thick lens formula.

Thick Lens Formula EFL / BFD Material Database

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Multi-Lens Focal Length Calculator

Configure multi-element lens systems freely. Add or remove lenses, then compute system EFL, BFL and FFL via paraxial ray tracing.

Ray Tracing Multi-Element EFL/BFL/FFL

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Radius of Curvature Calculator

Given a target focal length, solve for R2. Supports five lens types (biconvex, plano-convex, biconcave, plano-concave, meniscus) with automatic weight calculation.

Solve R2 5 Lens Types Lens Diagram

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Beam Expander Calculator

Supports Keplerian and Galilean configurations. Enter magnification and input beam parameters to calculate lens focal lengths, spacing and output beam properties.

Keplerian / Galilean Magnification Rayleigh Range

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Numerical Aperture Calculator

Forward/inverse calculation of NA, half-cone angle and f/#. Linked to Abbe resolution, Rayleigh criterion and depth of focus. Supports air, water and oil immersion.

NA ↔ f/# Resolution / DoF Multi-Medium

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Diffraction Limit Calculator

Based on Rayleigh criterion and Airy disk theory, calculate the limiting resolution, depth of focus and wavefront error tolerance for a given wavelength and aperture.

Airy Disk Viz Rayleigh Criterion Strehl Ratio

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Resources

Single Lens Focal Length Calculator

Multi-Lens Focal Length Calculator

Radius of Curvature Calculator

Beam Expander Calculator

Numerical Aperture Calculator

Diffraction Limit Calculator

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