MR Series | Products Line Up

MR™ Series ~ Trademark of Safe, Clear and Lightweight Lenses ~

Excellent optical materials with high refractive index, high Abbe number, low specific gravity and high impact resistance are provided by polymerizing monomers of MR™ Series. MR™ Series is especially suitable for ophthalmic lenses and is known as the first thiourethane based high index lens material. MR™ Series offers a variety of products to provide the best solution for optical lens users.

R.I. 1.60： MR-8™

The best balanced high index lens material with the largest share of the R.I. 1.60 lens material market.
MR-8™ is suited to any strength ophthalmic lens and is a new standard in ophthalmic lens material.

R.I. 1.67： MR-7™ & MR-10™

Global standard R.I.1.67 lens material.
Great materials for thinner lenses with strong impact resistance.

Material Characteristics
MR-7™ : Better color tintability
MR-10™ : Higher heat distortion temperature

R.I. 1.74： MR-174™

Ultra high index lens material for ultra thin lenses.
Strong prescription lens wearers are now free from thick and heavy lenses.

MR™ Series is a brand name of the raw material for optical lenses.
MR™ Series based lenses are available from most leading lens manufacturers.

>How to produce optical lens using MR™ Series
>Where to buy MR™ Series based lenses

Comparison of physical properties of lenses made with MR™ Series vs. other optical materials

	MR™ Series				Other
	MR-8™	MR-7™	MR-10™	MR-174™	Poly carbonate	Aclyric (RI:1.60)	Middle Index	ADC (CR-39® RAV7®)	Crown Glass
Refractive Index (ne)	1.60	1.67	1.67	1.74	1.59	1.60	1.55	1.50	1.52
Abbe Number (νe)	41	31	31	32	28-30	32	34-36	58	59
Heat Distortion Temp. (ºC)	118	85	100	78	142-148	88-89	-	84	>450
Tintability	Good	Excellent	Good	OK	None	Good	Good	Good	None
Impact Resistance	Good	Good	Good	OK	Good	OK	OK	OK	Poor
Static Load Resistance	Good	Good	Good	OK	Good	Poor	Poor	Good	Good

* CR-39 is a trademark of PPG Industries, Inc. RAV7 is a trademark of ACOMON AG.
All properties are representative measurement figures obtained under specified test methods at Mitsui Chemicals, Inc. and are not guaranteed as specifications.