The entrance prism is made from optical plastic material.

所述入射棱镜由光学塑胶材质制成。

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Xin Qiming Injectionmolding technology of optical plastic aspherical elements; Computercontrolled optical surfacing, Testing technique of aspherical surface.

光学塑料非球面零件注射成型技术，计算机控制表面成型技术，非球面检测技术。

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In addition, information tech projection Hitachi flat-screen TV has ever produced (President: Kenichi Yoshitake) is the production technology and techniques such as optical plastic substrate packaging technology developed in the manufacture of flat-screen televisions and other video equipment will continue to contract manufacturing products outside the Hitachi Group.

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"We wanted to highlight the optical qualities of plastic, " said IDEO's Caroline Flagiello, who serves as Plastic Logic's acting creative director.

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This ceramic substrate will not react with oxygen or moisture and is not damaged by temperatures that would significantly warp a conventional plastic optical disc.

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