RAV 7™

Applications detail

Low-index lenses

Applications

Vision care materials

Characteristics

Optical properties

Vision Care Materials Division of Mitsui Chemicals

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Basic information

Overview

The RAV 7™ series Optical Monomers produce high quality low index (1.50) ophthalmic lenses.
They are characterized by a high scratch and weather resistance, are tintable and have optical performance close to mineral glass. Apart from ophthalmics, RAV 7™ extends its use to applications in the marine environment and use in welding masks, as well as photographic filters.

Product Portfolio

High scratch resistance and non-yellowing
Excellent solvent resistance and weather resistance

Comparison of Properties

Classification	Grades	Key features
Standard	RAV 7™AT RAV 7™AX	Standard ADC^1 grade for production of 1.5 index lenses Standard ADC^1 grade with even better colour of 1.5 index lenses
Specialty	RAV 7™NG	ADC^*1 grade for production of 1.5 index lenses with reduced shrinkage and initiator demand Suited to cast complex lenses. Improved scratch resistance
Specialty	RAV 7™MC	ADC^*1 grade for production of 1.5 index lenses. In-mass coloration of sunlenses and corrective lenses. Prevent tinting failures and improves color consistency.
Specialty	RAVolution™	Pure polyurethane with 1.51 index. High impact resistance combined with high abbe value and very low density. Perfectly suited for rimless and neutral colored blue-cut glasses
Specialty	RAV 7™55T	ADC^*1 grade for production of 1.55/1.56 index lenses.
Specialty	RAV 7™BC	ADC^*1 grade for production of 1.5 index lenses. UV+420cut (Blue Cut) grade for providing protection against harmful visible light(HEV) on top of full UV protection
Specialty	RAV 7™NL	ADC^1 grade for production of 1.5 index lenses. 40% less IPP^2, yet with excellent castability, and with higher heat resistance and hardness
Specialty	RAV 7™AF	ADC^1 grade for production of 1.5 index lenses. Anti-fern additive to prevent tinting defects in high power finished lenses. Mixable with other ADC^1 grades.