With high-impact resistance, high refractive index (R.I.), high Abbe number, and light weight, this thiourethane eyeglass material is a product with unique polymerization technology of MITSUICHEMICALS. It is an innovative material for lenses that offer a balanced set of characteristics—thinness, light weight, break resistance, and perfect clarity—demanded by many eyeglass lens users around the world.
Properties of MR™
Thin and Light
Lenses generally become thicker and heavier as optical power increases. But with the development of high R.I. lens materials, it’s now possible to make thinner, lighter lenses.
Now, even high-power lenses can be made thin and comfortable to wear.
Safe and Resistant to Breakage
The toughness of thiourethane resin makes it possible to build thin eyeglass lenses with high impact resistance. Thiourethane lenses resist breaking and chipping, even for two-point or rimless glasses, making them safer to wear and use. Thiourethane lenses also exhibit superior workability, which means they can be formed into virtually any design.
Lasting Appeal
Thiourethane lenses feature high wear resistance and resist discoloring over time.
They also allow stronger adhesion of the coating material to the surface. The coatings are more resistant to peeling, even after extended use.
Clear Views
Due to the prism effect, which disperses light passing through a lens, color fringing (chromatic aberration) typically becomes more evident in the view as the optical power of a lens increases.
Lens materials with high Abbe numbers,* like MR-8™, can minimize chromatic aberration.
Lighter, Stronger, Clearer Eyeglasses
MR™ is the de facto standard brand of high R.I. lenses
currently advancing the evolution of eye care.
Eyeglasses need to provide numerous characteristics, among them clarity, safety, durability, and refractive index.
The industry has long sought an innovative material that offers these properties in a balanced way.
MR™ lens materials are made from thiourethane resin, a material not yet widely used for lenses.
Thiourethane realizes lens properties not available from other materials.
That’s why it’s been eagerly adopted by eyeglass makers around the world.
Post time: Feb-08-2023