STYLE: Brands + Designers Technology and Design Trends Over the Last Two Decades By By Deirdre Carroll Monday, September 10, 2007 10:13 AM RELATED CONTENT Cover Story: The Evolution of Eyewear Design Changes in Infrastructure Special Report: Brands Transform Eyewear Design The Impact of Marketing In an effort to constantly push the envelope and develop new and better ways of creating eyewear, designers are always searching out new technology and design inspiration. Over the last 20 years, it is that hunt for innovation that has lead to some of the most notable design trends and technological advancements that have become integral to the modern day eyewear industry, including: Titanium and beta titanium Injected materials and co-injection Double and triple laminates The integration of composites The use of computers in image modeling 8-base lenses Shield and mask styles Progressive lenses Laser etching Memory metals Magnetic clips Polarization Streamlined manufacturing processes Flex hinges Hingeless frame styles