Transitions Optical, Inc.

Shengwen Yuan

Anil Kumar

Robert W Walters

Jun Deng

Darrin R Dabideen

Massimiliano Tomasulo

The present invention relates to a photochromic compound having a core fused ring structure represented by at least one of the following Formula (Ia) or Formula (IIa), (Ia) (IIa) Independently for each of Formula (Ia) and Formula (IIa): Ris in each case independently selected from substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, —SOR, or —C(O)—XR, where, X is selected from a single bond, —N(R)—, or —O—, and Rin each case is independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; and B and B' are each independently selected from substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl. The present invention also relates to photochromic compositions and articles including such photochromic compounds.

Dihydroquinoline photochromic compounds

The present invention relates to photochromic indeno fused phenanthrenopyran compounds represented by the following Formula (I). With some embodiments, the photochromic compounds represented by Formula (I) include at least one lengthening group (e.g., Rand/or Reach independently being a lengthening group) and the compounds of the present invention are photochromicdichroic compounds. The present invention also relates to photochromic compositions and photochromic articles, such as photochromic ophthalmic articles that include one or more photochromic compounds represented by Formula (I). 

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Northbrook, IL, United States of America

Shengwen Yuan