PMMA, polymethyl-methacrylate, is a thermoplastic acrylic linear polymer, the mer of which is illustrated in the diagram. PMMA is transparent, with a refractive index of 1.49, and easily formed into ...

and lower reflectors in metallic PMMA. No photo-biological risks.This luminaire is in the “Exempt Group” (no risk linked to infrared, blue light, and UV radiation) in accordance with EN 62471: ...