Ioda has started the production of photocromatic semifinished

The colours available are 'Gray' and 'Brown'. The index of refraction is medium (1.55) and the reaction time to light is very little: in few seconds indeed our semifinished absorb 75% of light. These semifinished are going to be available in the various versions of the IODA products, both in the 'gray' and 'brown' colours. At the moment we can provide:VEGA2 - semifinished for wrap framesNOVA - aspheric semifinished