| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical material excellent in transparency, heat resistance, dimensional stability, mechanical strength, and light resistance. <P>SOLUTION: The optical material for light beams of wavelength 360-430 nm includes a fluorine-containing acrylic resin. In the fluorine-containing acrylic resin having a specific repeating unit, a fluorine content is 20% or more, and the glass transition temperature is 50°C or higher. <P>COPYRIGHT: (C)2011,JPO&INPIT |
