Photochromic compositions and light transmissible articles

Photochromic compositions of improved fatigue resistance

Photochromic compositions, preparation thereof and articles...

Photochromic compound and articles containing the same

Photochromic compound and articles containing the same

Photochromic compound and articles containing the same

Photochromic compound and optical functional material

Photochromic compound, process for production thereof, use there

Photochromic compounds

Photochromic compounds

Photochromic compounds

Photochromic compounds

Photochromic contact lens having excellent discoloring...

Photochromic curable composition

Photochromic curable composition

Photochromic curable composition and cured articles thereof

Photochromic h-annellated benzo[f]chromene compounds

Photochromic heterocyclic fused indenonaphthopyrans

Photochromic heterocyclic fused indenonaphthopyrans

Photochromic indeno-fused naphthopyrans