Invention Grant
- Patent Title: Photochromic optical article
- Patent Title (中): 光致变色光学制品
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Application No.: US10793588Application Date: 2004-03-04
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Publication No.: US07811480B2Publication Date: 2010-10-12
- Inventor: Eric M. King
- Applicant: Eric M. King
- Applicant Address: US FL Pinnellas Park
- Assignee: Transitions Optical, Inc.
- Current Assignee: Transitions Optical, Inc.
- Current Assignee Address: US FL Pinnellas Park
- Agent Deborah M Altman
- Main IPC: G02B5/23
- IPC: G02B5/23 ; F21V9/00

Abstract:
Describes a photochromic article, e.g., an ophthalmic photochromic plastic article, such as a lens, in which the article includes (1) a rigid substrate, e.g., polymeric substrate, such as a thermoset or thermoplastic substrate, (2) a photochromic polymeric coating appended to at least one surface of the substrate, the photochromic polymeric coating containing a photochromic amount of at least one photochromic material, e.g., spirooxazine, naphthopyran and/or fulgide, and (3) a film comprising a maleimide derivative coherently appended to the photochromic coating. Describes also the aforedescribed photochromic article having an abrasion-resistant coating affixed to the maleimide derivative-containing film, e.g., an abrasion-resistant coating comprising an organo silane; and describes further a photochromic article having an antireflective coating affixed to the abrasion-resistant coating.
Public/Granted literature
- US20050196696A1 Photochromic optical article Public/Granted day:2005-09-08
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