R
- Radial polarisation
- Radiometry
- radius of curvature
- Rainbow
- Raman amplification
- Raman amplifier
- Ray (optics)
- Rayleigh criterion
- Rayleigh scattering
- Ray tracing
- Ray transfer matrix analysis
- Reflecting telescope
- Reflection (optics)
- Refracting telescope
- Refraction
- Reflection coefficient
- Refractive index
- Refractometer
- Retroreflector
- RGB color model
- Rochon prism
- Rotating wave approximation
Read more about this topic: Index Of Optics Articles