1.59 PC Polycarbonate holomua Lens
No ke aha i ʻike ʻia ai nā Lens Polycarbonate?
ʻO ka polycarbonate kahi mea pale i ka hopena. Ua hoʻomohala ʻia i nā makahiki 1970 no nā noi aerospace e pili ana i nā hiʻohiʻona mahiole astronaut a me nā pale makani mokulele, no laila inā ʻaʻohe mea ʻē aʻe, maikaʻi loa kēlā…
Ma ka makahiki 1980 ua hoʻohana ʻia ka polycarbonate no nā lens no ka mea ʻoi aku ka lahilahi, ʻoi aku ka māmā a ʻoi aku ka pale ʻana ma mua o ke aniani. I kēia mau lā, ʻo ia ka maʻamau no nā maka aniani palekana, nā makaaniani keiki a me nā goggles haʻuki, no ka maikaʻi o ka hopena.
ʻO ka polycarbonate kahi thermoplastic e hoʻomaka i ke kaʻina hana lens e like me nā pellets i hana ʻia i kahi kaʻina i kapa ʻia ʻo injection molding. I loko o kēia kaʻina hana, hoʻokomo ʻia nā pellets ma lalo o ke kaomi kiʻekiʻe loa i loko o nā mole lens, a laila hoʻomaha ʻia a lilo i lens plastik paʻakikī.
Me kona paʻakikī, paʻa maoli nā lens polycarbonate i 100% o nā kukuna UV o ka lā me ka ʻole o ka uhi ʻana, ʻo ia hoʻi ua pale pono ʻia kou mau maka. Hāʻawi ʻia kēia mau lens ma kahi ākea o nā koho (e like me nā lens holomua) ma mua o nā mea lens hopena kiʻekiʻe.
ʻOiai ʻo ka polycarbonate e hana maoli i kahi lens kūʻē i ka hopena, hiki mai ka lōʻihi ma ke kumukūʻai. ʻOi aku ka nui o ka noʻonoʻo ʻana o ka lens ma ka polycarbonate ma mua o ka plastic a i ʻole aniani, ʻo ia ka mea e pono ai kahi uhi anti-reflective. Ma waho aʻe o kēia polycarbonate he waiwai ʻo Abbe o 30 wale nō, ʻo ia ka mea e hāʻawi ana i ka maikaʻi optical maikaʻi ʻole i nā koho i kūkākūkā mua ʻia.
Nā Leni No Presbyopia - Holomua
Inā ʻoi aku ʻoe ma mua o 40 a pilikia ʻoe i kou ʻike kokoke a hiki i ka lima, aia paha ʻoe i ka presbyopia. ʻO nā lens holomua kā mākou hopena maikaʻi loa i ka presbyopia, e hāʻawi iā ʻoe i ka ʻike maka ma kēlā me kēia mamao.
He aha nā pōmaikaʻi o nā Lenses Progressive?
E like me nā lens bifocal, hiki i nā lens multifocal holomua ke ʻike maopopo i ka mea hoʻohana ma nā pae mamao like ʻole ma o ka lens hoʻokahi. Hoʻololi mālie ka lens holomua i ka mana mai luna o ka lens a i lalo, e hāʻawi ana i kahi hoʻololi maʻalahi mai ka hihiʻo mamao i ka ʻike waena/kamepiula i ka ʻike kokoke/heluhelu.
ʻAʻole like me nā bifocals, ʻaʻohe laina ʻokoʻa o nā lens multifocal holomua a loaʻa iā ia ka pōmaikaʻi o ka hāʻawi ʻana i ka ʻike maopopo ma kahi ākea nui, ʻaʻole e kaupalena iā ʻoe i ʻelua a ʻekolu paha mamao. Hoʻolilo kēia iā lākou i koho kaulana no nā poʻe he nui.
Pehea e haʻi ai inā kūpono nā Lenses Progressive iā ʻoe?
ʻOiai ʻo ka lens holomua e ʻae iā ʻoe e ʻike maopopo i kahi kokoke a mamao loa, ʻaʻole kēia mau lens ke koho kūpono no kēlā me kēia.
ʻAʻole hiki i kekahi poʻe ke hoʻololi i ke komo ʻana i kahi lens holomua. Inā loaʻa kēia iā ʻoe, hiki iā ʻoe ke ʻike i ka noʻonoʻo mau, nā pilikia me ka ʻike hohonu, a me ka distortion peripheral.
ʻO ke ala wale nō e ʻike ai inā pono nā lens holomua iā ʻoe e hoʻāʻo iā lākou a ʻike i ke ʻano o kou mau maka. Inā ʻaʻole ʻoe e hoʻololi ma hope o ʻelua pule, pono paha kāu optometrist e hoʻololi i ka ikaika o kāu lens. Inā hoʻomau nā pilikia, ʻoi aku ka maikaʻi o ka lens bifocal no ʻoe.
