3D Refraction Simulator

Optics benchSnell’s law in 3D

Incident Reflected Transmitted

Air · n 1.000 Water · n 1.333

Refraction

θᵢ 42.0° θᵣ 42.0° θₜ 30.0°

Drag to orbit · wheel to zoomDashed line = surface normal

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Upper medium

Lower medium

Incidence angle42.0°

Wavelength532 nm

Beam diameter18 mm

Wavefront markers

θ transmitted30.1°

Reflectance2.4%

Critical angle—

n₁ sin θᵢ = n₂ sin θₜ 1.000 × 0.669 = 1.335 × 0.501