E
- EDFA
- Effect of sun angle on climate
- Electro-gyration
- Electro-optic effect
- Electroluminescence
- Electromagnetic radiation
- Electromagnetic spectrum
- Electromagnetic wave
- Elve
- Emission spectrum
- Entrance pupil
- Exit pupil
- Eyeglass prescription
- Etalon
- Evanescent wave
- Excimer laser
- Eye
- Eyepiece
Read more about this topic: Index Of Optics Articles