초록 ▼

Provided is a photochromic optical articleincluding: (a) an optical substrate; (b) a thermally reversible photochromic material; and (c) reversible thermochromic material capable of at least partially filtering UV/visible light at or below room temperature and becoming less capable of filtering UV/v

Provided is a photochromic optical articleincluding: (a) an optical substrate; (b) a thermally reversible photochromic material; and (c) reversible thermochromic material capable of at least partially filtering UV/visible light at or below room temperature and becoming less capable of filtering UV/visible light at temperatures greater than room temperature.

대표청구항 ▼

We claim: 1. A photochromic optical article comprising:(a) an optical substrate;(b) a thermally reversible photochromic material; and(c) a reversible thermochromic material operable for at least partially filtering UV/visible light at or below room temperature and becoming less operable for filterin

We claim: 1. A photochromic optical article comprising:(a) an optical substrate;(b) a thermally reversible photochromic material; and(c) a reversible thermochromic material operable for at least partially filtering UV/visible light at or below room temperature and becoming less operable for filtering UV/visible light at temperatures greater than room temperature,wherein the reversible thermochromic material (c) comprises a tautomer selected from a Schiff base and/or a Mannich base.