Low-index lenses
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RAV 7™
Material for eyeglass lenses
Applications detail
Applications
Characteristics
- 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. |
*1 ADC: Allyl diglycol carbonate
*2 IPP: Diisopropyl peroxy carbonate
Contact Us
Vision Care Materials Division