high refractive index resin (optical grade)

[opticsman]

Does anyone know if there is a commercially available injection moulding resing with a high refractive index, for optical components. Polycarbonate has an RI of 1.58 but is there anything higher?

cheers opticsman

 

[insideman]

Acrylic

 

[patprimmer]

Acrylic also has better light transmission and is more scratch resistant Regards
pat