Related Clues:
- Disperser or reflector of light
- Transparent solid for dispersing light
- Part of the inner eye, or camera
- Part of eye
- Glass triangle that separates white light into the colour spectrum
- Optics prop
- Optical element
- Light shower?
- Contact, e.g
- Refraction device
- Bifocal ___ (Benjamin Franklin invention)
- Fisheye, e.g
- Triangular glass shape, breaks up light
- Item in many peepholes
- Spectrum-showing object