1.50 CR-39 Plastic Finished Sing Pono Lenses
Hobaneng u ka khetha lilense tsa CR-39 Optical?
Mahlaseli a mahlaseli a letsatsi a ka ba kotsi mahlong.
Lilense tse thibelang 100% UVA le UVB li thusa ho thibela litlamorao tse kotsi tsa mahlaseli a UV.
Lilense tsa Photochromic le likhalase tsa letsatsi tsa boleng bo holimo li fana ka tšireletso ea UV.
Hobaneng u ka khetha lilense tsa CR-39 Optical?
Crystal Vision (CR) ke lilense tsa boleng bo holimo tse entsoeng ke e 'ngoe ea lik'hamphani tse kholo ka ho fetisisa lefatšeng tsa lense.
CR-39, kapa allyl diglycol carbonate (ADC), ke polima ea polasetiki e atisang ho sebelisoa ha ho etsoa lilense tsa khalase ea mahlo.
Kgutsufatso ena e emetse "Columbia Resin #39", eo e neng e le foromo ea 39 ea polasetiki ea thermosetting e ntlafalitsoeng ke projeke ea Columbia Resins ka 1940.
Ke ea PPG, thepa ena e fetola mokhoa oa ho etsa lilense.
Halofo e boima joaloka khalase, ha e na monyetla oa hore e pshatlehe, 'me boleng ba optical bo batla bo lekana le khalase.
CR-39 e futhumetse 'me e tšeloa ka har'a liforomo tsa khalase tsa boleng ba optical - ho fetola litšobotsi tsa khalase haufi-ufi.
Khanyetso-ea ho hanyetsa
Mekhoro ea lilense e ea sitisa,
e sa bonahaleng le maemong a itseng e ka bang kotsi.
Li ka boela tsa kena-kenana le ts'ebetso e lakatsehang ea lilense tsa hau.
Litlhare tse manganga li tiisa lilense ho etsa hore li tšoarelle nako e telele.
Anti-reflective Treatments(AR)
Bakeng sa feshene, matšeliso le ho hlaka, litlhare tse khahlanong le ho bonahatsa ke tsela ea ho tsamaea.
Ba etsa hore lense e se ke ea bonahala, 'me ba thusa ho khaola khanya ho tsoa maboneng a pele, li-skrini tsa khomphutha le mabone a matla.
AR e ka ntlafatsa ts'ebetso le ponahalo ea lilense tse ka bang teng!
