Patents Examined by Armel C. Lavarias
  • Athermalized plastic lens
    Patent number: 7038853
    Abstract: A plastic lens includes refractive and diffractive optical apparatus configured to produce optothermal changes substantially canceling each other over a predetermined working temperature range to render the plastic lens substantially athermalized over the range.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: May 2, 2006
    Assignee: Symbol Technlogies, Inc.
    Inventors: Yajun Li, Vladimir Gurevich, Mark Krichever, Edward Barkan, Miklos Stern