Ihe oghere index dị elu kachasị mma dabara nke ọma nwere oke kachasị nke ihe nlegharị anya 1.60.
ahịa. MR-8 dabara na oghere ophthalmic ike ọ bụla ma bụrụ ọkọlọtọ ọhụrụ na ihe oghere anya anya.
MR-8 | Polycarbonate | Acrylic | CR-39 | Iko okpueze | |||||||||||
Ntụgharị ntụgharị | 1.60 | 1.59 | 1.60 | 1.50 | 1.52 | ||||||||||
Abebe nọmba | 41 | 28-30 | 32 | 58 | 59 |
· Ma elu refractive index na elu Abbe nọmba na-enye ngwa anya arụmọrụ yiri ugegbe anya.
Ihe dị elu nke nọmba Abbe dị ka MR-8 na-ebelata mmetụta prism (chromatic aberration) nke lenses ma na-enye ndị na-eji ya niile aka.
A na-eme resin MR-8 n'otu n'otu n'otu iko. Tụnyere lenses polycarbonate kpụziri injection,
lenses resin MR-8 na-egosi obere nrụgide nrụgide ma na-enye ọhụụ doro anya na-enweghị nchekasị.