Maat currently adopts two kinds of production processes to meet the needs of different consumer groups.
In-mass photochromic originally was developed by Corning in the 1960s and applied to glass materials, nowadays it is widely used in resin lens production. The principle is mixing photochromic dyes with lens monomer, the biggest advantage is a stable photochromic performance at a lower price, the bands are only mid-index available, and lower responsive speed(both darkening and fading time).
CB layer coating photochromic, also named spin-photo, is considered to be the most advanced photochromic lens production technology nowadays.
Advantages: faster color changing speeding and fading speed, more optional indexes andflexible function selection.
Disadvantage: higher price.
Photochromic lenses remain clear indoors, while get dark outdoors when exposed to UV light present in sunlight. The major factor of the magic is the photochromic dyes in the lens or on the surface of the lens. After decades of R&D and improvement, Maat has made breakthrough achievements in its self-developed and improved dyes:
1. Faster responsiveness
2. Darkness up to CAT-3 level
3. Stability and consistency in all optional colors
4. Long-service life
The lens monomer(major material) is supplied by worldwide brand companies, PPG, Mitsui, KOC, and so on. Maat does not produce all the substrate lenses ourselves, we also use a self-developed process to apply patented photochromic dyes or other photochromic materials to our partner’s clear substrate lenses.
Not only do Photochromic lenses react to UV light—but they also protect your eyes from it! It could fully block UVA and UVB rays, reducing the risks of UV-related cataracts and other eye diseases.
A blue light filter is optional in most of our products, we now supply photochromic lenses with two levels of blue light filter, UV410 and UV420.UV410 blue light filter is designed for light office work, an average of 3-4 hours per day in front of the computer.UV420 suits people who work with computers all day long or have higher blue light protection needs.
Generally, a photochromic lens gets very dark in 30 seconds and fades back to acceptable clarity in 2 minutes. Maat’s self-developed super fast and dark photochromic(Maatlite RapidyTM) lens improved the transition speed by 20%(darkening speed 18.5% faster, fading speed 26% faster)compared with regular In-mass photochromic lenses.
By introducing the latest generation of CB layer coating dyes, the Maat CB2 photochromic lens improved its transition speed without sacrificing any photochromic properties. It’s a breakthrough product in all dimensions.