Lens Simulator
Thin-lens ray tracing for converging and diverging lenses: principal rays, image location, and magnification sign conventions.
Who it's for: Geometric optics; sign rules and real vs virtual images.
Key terms
- thin lens
- focal length
- magnification
- real image
- virtual image
How it works
Thin-lens ray diagrams use three principal rays: parallel to the axis then through the focal point; straight through the lens center; through the object-side focal point then parallel to the axis. The thin-lens equation links object distance, image distance, and focal length.
Key equations
More from Optics & Light
Other simulators in this category — or see all 31.
Simple Eye (Thin Lens)
P_total = P_eye + P_glasses; 1/v = P − 1/u vs retina; blur cue.
Thin Lens Equation
Hyperbola d_i(d_o), pole at d_o = f, schematic + 1/d check.
Prism & Dispersion
White light through a prism creating a rainbow spectrum.
Thin-Film Interference
Wedge fringes: n, d, θ; cos²(δ/2) colors and I(λ) at mid thickness.
Michelson Interferometer
I(Δ) = V cos²(πΔ/λ); tilt fringes; coherence length envelope.
Brewster Angle
tan θ_B = n₂/n₁; R_p→0; θᵢ+θₜ=90°; Fresnel R_s, R_p vs θᵢ.