- Optica
- Reflection and Refraction iPad version
- Formarea imaginii
- Understanding the Thin Convex Lens
- Lenses & Chromatic Aberration
- umbra and penumbra / Halb- und Kernschatten
- Polarization
- Projection: Line of Sight on a Sphere
- Perspectiva in fotografie
- Profunzimea de camp
- Light Mixing
- Lighting on a sphere
- Dispersion of Light
- Dispersion of Light
- Single-slit diffraction
- Thin Film interference
- Subtraction with colours
- Light and Shadow
- Snell's Law 1
- visible spectrum of light
- Electromagnetic Waves
