| 摘要 |
An aspheric lens ( 1 ) includes a substrate ( 10 ) and an aspheric film ( 12 ). The substrate ( 10 ) is made of glass, and has a spherical surface ( 102 ). The aspheric film ( 12 ) is formed on a surface of the substrate ( 10 ), and is made of plastic material. The aspheric film ( 12 ) has an aspheric surface ( 122 ). A method for making the aspheric lens ( 1 ) includes the steps of: providing a substrate ( 10 ) made of glass, the substrate ( 10 ) having a spherical surface ( 102 ); putting the substrate ( 10 ) in an injection mold, the injection mold having an aspheric surface ( 202 ); closing the injection mold, and injecting a plastic material on the substrate ( 10 ); solidifying the plastic material, thereby forming an aspheric film ( 12 ) on the substrate ( 10 ); and opening the injection mold, and obtaining the aspheric lens ( 1 ).
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