Optics Light Lab: Ray Tracing

Optics & Light Lab turns geometric optics into something you can touch: place real mirrors, lenses and prisms on a 3D optical bench and watch a physics engine trace every beam, then prove what you learned across 50 laser-maze puzzles graded by that same engine. It's built for the physics student for whom Snell's law is still a formula to memorize, and for anyone who wants to actually see how a lens bends light instead of reading about it in a textbook. Every lesson pairs a short explanation with a live optical bench: rotate a mirror, swap a lens, drop a prism into the beam path, and the ray tracer recomputes every reflection and refraction in real time — no canned animation, no pre-rendered path underneath it. Switch the laser to white light and point it at a prism and a single beam fans into seven separately-traced wavelengths, each colored by its own refractive index, so the rainbow you see is computed, not drawn. Get the angle wrong and you can see by exactly how much; nudge the slider and the beam sweeps the bench live until it lands on target. WHAT YOU CAN DO • Work through 38 lessons across 4 worlds: Reflection & Refraction, Lenses & Mirrors, Dispersion & Color, and Deep Optics — covering Snell's law, curved-mirror geometry, the thin-lens equation, critical angle and total internal reflection • Play with 10 hand-drawn diagrams and 4 live interactive simulations: a Snell's-law slider, a thin-lens calculator, a critical-angle demo and a prism-dispersion sandbox that compute their own readouts as you drag them • Solve 18 optical-bench labs built into the lessons, each one graded by the same ray-tracing engine that draws the beam • Aim your way through a 50-level laser-puzzle ladder — single-mirror shots, two-mirror L-paths and three-mirror staircases with decoy prisms and blockers on the later levels — every level engine-verified solvable before it ever shipped • Free-play in the optics sandbox with all 9 element types — flat, concave and convex mirrors, converging and diverging lenses, prisms, blockers, targets and the laser — drag to orbit and pinch to zoom around your own 3D bench • Save your favorite sandbox builds and reopen exactly where you left off • Choose from 15 real optical materials, from ice to diamond, each with its own refractive index — swap the glass in a prism and watch the spectrum widen or narrow • Ask an AI tutor to explain what your bench is doing, or request a hint when a puzzle has you stuck • Learn in 10 languages with a genuine light/dark theme throughout WHAT'S FREE World 1 — all 10 lessons and their 5 labs — is yours for good, plus puzzle levels 1 through 10, a 5-element sandbox with 3 saved benches, 2 AI explanations a day and 1 puzzle hint a day. The app runs with ads between screens. WHAT PRO ADDS Worlds 2 through 4 (28 more lessons covering lenses, mirrors, dispersion and deep optics, with 13 more labs), puzzle levels 11 through 50, an unlimited sandbox with unlimited saved benches, unlimited AI explanations and hints, and an ad-free app. Optics & Light Lab works entirely offline — every lesson, diagram, lab and puzzle is bundled on your device, so a flight or a dead signal never interrupts a study session. Optics & Light Lab Pro is offered as a Monthly subscription ($4.99) or an Annual subscription ($29.99). Payment is charged to your Google Play account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to that date. Privacy Policy https://coddykit.com/terms/privacy-policy