Optical plastic component
AssigneeGeneral Electric Company
InventorsXuan-ming Duan, Mitsunobu Sato
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Abstract
Optical parts are obtained from the thermoplastic resin compositions containing alicyclic polyester, e.g., polycyclohexanedimethanolcyclohexane dicarboxylate as the alicyclic resin. The thermoplastic resin compositions contain alicyclic polyester as well as polycarbonate with the polycarbonate: alicyclic polyester weight ratio is in the range of 0:100 to 95:5, for optical elements having excellent chemical resistance and transmittance characteristics.
Claims13
An optical element obtained from thermoplastic resin composition having at least 75% light transmittance, comprising alicyclic polyester.
An optical element fabricated by the process of:
- a) melt blending a thermoplastic composition comprising alicyclic polyester and polycarbonate, in a ratio of polyester to polycarbonate of 5:95 to 95:5, based on the total weight of said composition, wherein said thermoplastic composition has a refractive index in the range of 1.50 to 1.60
- b) forming said thermoplastic composition into an optical element having at least a 75% light transmittance.
A process for fabricating an optical element, said process comprises:
- a) melt blending a thermoplastic composition comprising alicyclic polyester and polycarbonate, in a ratio of polyester to polycarbonate of 5:95 to 95:5, based on the total weight of said composition, wherein said thermoplastic composition has a refractive index in the range of 1.50 to 1.60;
- b) forming said thermoplastic composition into an optical element having at least a 75% light transmittance.
Dependencies are inferred from the claim text.