Patents Assigned to Microsharp Holdings Limited
  • Optical recording materials
    Patent number: 7232651
    Abstract: A photopolymerisable system is disclosed which can be polymerised by exposure to UV light, for example, to form a solid, light-transmitting sheet material having volume refractive index variations defining an optical diffuser or a hologram, for example. The system includes a silicone monomer, prepolymer, macromonomer or co-monomer capable of undergoing free radical initiated polymerization and further includes a photoinitiator.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: June 19, 2007
    Assignee: Microsharp Holdings Limited
    Inventors: Robin J. T. Clabburn, Rifat Iqbal, Stephen Moratti