Related Clues:
- Eyeglasses glass
- Binoculars component
- The 'L' of S.L.R
- See-through object
- Light-refracting crystal
- Hubble component
- See 23
- Optical equipment teacher returned in the afternoon
- Miss _____, governess in ¿he Importance of Being Earnest'
- Solid figure - light separator
- Shape used to disperse light beams
- Solid that resolves light into separate colours
- Part of eye or camera
- Device to converge or diverge light
- Piece of glass, usually curved