平凸透镜(PCX)的焦距为正，非常适合在成像应用中搜集及汇聚光线。也可以用于各种涉及散射，探测，激光以及光纤的方面的应用。加镀膜的产品透过率好。有多种尺寸及焦距可供选择。

These coated lenses are optimized for a wide range of optics and photonics applications, including biotech instruments such as DNA sequencers and polymerase chain reaction (PCR) testing platforms.