用模压成形方法生产小尺寸非球面透镜是最经济、重复性最好的方法。
Using molding methods to produce small aspherical elements is the best economic way with the best repetitiveness.
塑料透镜是由聚丙烯酸塑料模压而成的费涅尔透镜，该透镜具有透光率高，耐日光老化等优点。
Plastic lens is plastic molded polypropylene acid from the fees Nieer lens, lens with the transmission rate is high and the aging of the advantages of daylight-resistant.
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