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1.59 PC ʻOki ʻoniʻoni HMC Optical
ʻO nā lens PC, nā lens resin maʻamau he mau mea thermosetting, ʻo ia hoʻi, he wai ka mea maka, wela e hana i nā lens paʻa. Kapa ʻia ka ʻāpana PC he "space piece", "space piece", ʻo ka inoa kemika he polycarbonate momona, he mea thermoplastic. ʻO ia hoʻi, paʻa ka mea maka, hoʻomehana ʻia ma hope o ka hana ʻana i nā lens, no laila e hoʻopau ʻia kēia lens ma hope o ka deformed o ka huahana i hoʻopau ʻia, ʻaʻole kūpono no ka haʻahaʻa kiʻekiʻe a me nā manawa wela.
He paʻakikī ikaika ka lens PC, ʻaʻole i haki (hiki ke hoʻohana ʻia ka 2cm no ke aniani pale), no laila ua kapa ʻia ʻo ia he lens palekana. ʻO ka umekaumaha kikoʻī he 2 grams wale nō kēlā me ke kenimika cubic, e lilo ia i mea māmā loa i hoʻohana ʻia i kēia manawa no nā lens.
