Refractive Index 1.60MR-8™
This is the standard high R.I. lens material.
Compared to other lens materials of the same refractive index,
the exceptionally high Abbe number means minimal chromatic aberration in the visual periphery
and an ideal balance of properties such as impact resistance and thermal resistance.
*In addition to the MR-8™, the R.I. 1.60 MR™ lineup includes the MR-6™, MR-8™plus, MR-20™, and MR-90™, depending on combination of materials.
We recommend the R.I. 1.60 MR™ for a wide range of designs and purposes and for optical powers ranging from nearsightedness to presbyopia.
Refractive Index 1.67MR-7™/MR-10™
This lineup features a balance of lens thinness, lightness, and high impact resistance.
The MR-7™ offers good tintability. The MR-10™ offers superb thermal resistance.
We recommend the R.I. 1.67 MR™ for users who are uncomfortable with thick or heavy high-powered lenses. The MR-7™ with its good tintability is ideal for sunglasses and fashion-oriented glasses. The heat-resistant MR-10™ lens offers added safety for use under challenging temperature conditions.
Refractive Index 1.74MR-174™
This lens material makes it possible to produce ultra-thin lens of the highest refractive index.
Additionally, this Do Green™ product is made using plant-derived materials.
We recommend the R.I. 1.74 MR™ for users looking for the ultimate in thinnes, as well as those who are especially eco-conscious or prefer the highest possible quality.