Kugenzura amadarubindi

1. Ihame rya lens UV itahura

Ibipimo byoherejwe byerekana indorerwamo z'izuba ntizishobora gutunganywa nk'ikigereranyo cyoroheje cyo kohereza ibintu kuri buri muhengeri, ariko bigomba kuboneka no guhuza uburemere bwogukwirakwiza ibintu ukurikije uburemere bw'uburebure butandukanye.Ijisho ryumuntu nuburyo bworoshye bwa optique.Mugihe cyo gusuzuma ubwiza bwikirahure, hagomba kubanza gusuzumwa ibyiyumvo byijisho ryumuntu kumirasire yumucyo wuburebure butandukanye.Muri make, ijisho ryumuntu ryumva urumuri rwatsi, bityo ihererekanyabubasha ryumucyo wicyatsi rifite uruhare runini mugukwirakwiza urumuri rwa lens, ni ukuvuga uburemere bwumucyo wicyatsi kibisi ni kinini;ku rundi ruhande, kubera ko ijisho ry'umuntu ritumva urumuri rw'umuyugubwe n'umucyo utukura, bityo rero kohereza itara ry'umuyugubwe n'umucyo utukura bigira ingaruka nkeya ku ihererekanyabubasha ry'urumuri, ni ukuvuga uburemere bw'urumuri rw'umutuku kandi itara ritukura naryo ni rito.Inzira ifatika yo kumenya imikorere ya anti-ultraviolet ya lens ni ukumenya umubare no gusesengura ihererekanyabubasha rya UVA na UVB.

2. Ibikoresho byo gupima nuburyo

Ikizamini cyo kwanduza ibintu gishobora gukoreshwa mu gupima ihererekanyabubasha ry’amadarubindi mu karere ka ultraviolet kugirango hamenyekane ubwiza bw’icyitegererezo cya ultraviolet.Huza metero yerekana imiyoboro ya port kuri seriveri ya mudasobwa, utangire gahunda yo gukora, ukore kalibrasi y'ibidukikije kuri 23 ° C ± 5 ° C (mbere ya kalibrasi, bigomba kwemezwa ko igice cyo gupima kidafite lens cyangwa filteri), hanyuma ushireho ikizamini uburebure bwumurambararo bugera kuri 280 ～ 480 nm, reba imirasire ya ultraviolet ya lens mugihe cyo gukuza umurongo uteganijwe.Hanyuma, shyira lens zipimishije kumashanyarazi yipimisha kugirango ugerageze kohereza urumuri (icyitonderwa: ohanagura lens hamwe na reberi yipimisha isukuye mbere yo kwipimisha).

3. Ibibazo mu gupima

Mu gutahura amadarubindi yizuba, kubara kwanduza bande ya ultraviolet ikoresha uburyo bworoshye bwo kugereranya imiyoboro yoherejwe, isobanurwa nkikigereranyo cyoherejwe.Kuri sample imwe iri kugeragezwa, niba ibisobanuro bibiri bya QB2457 na ISO8980-3 bikoreshwa mugupima, ibisubizo bya ultraviolet umurongo wogukwirakwiza byabonetse biratandukanye rwose.Iyo upimye ukurikije ibisobanuro bya ISO8980-3, ibisubizo bibarwa byo kohereza mumatsinda ya UV-B ni 60.7%;kandi niba upimye ukurikije ibisobanuro bya QB2457, ibisubizo bibarwa byo kohereza mumatsinda ya UV-B ni 47.1%.Ibisubizo bitandukanye na 13,6%.Birashobora kugaragara ko itandukaniro mubipimo ngenderwaho bizaganisha ku itandukaniro ryibisabwa bya tekiniki, kandi amaherezo bigira ingaruka kumyizerere no gupima ibisubizo byo gupima.Iyo upimye ihererekanyabubasha ryibicuruzwa byamaso, iki kibazo ntigishobora kwirengagizwa.

Ihererekanyabubasha ryibicuruzwa byizuba hamwe nibikoresho bya lens birageragezwa kandi bigasesengurwa, kandi agaciro nyako kaboneka muguhuza uburemere bwogukwirakwiza ibintu, kandi ibisubizo byibyiza nibibi byibicuruzwa byizuba.Mbere ya byose, biterwa n’uko ibikoresho bya lens bishobora guhagarika imirasire ya ultraviolet, UVA na UVB, kandi bishobora kohereza urumuri rugaragara kugirango rugere ku bikorwa byo kurwanya urumuri.Ubushakashatsi bwerekanye ko uburyo bwo guhererekanya ibyuma bya resin ari byiza, bigakurikirwa n’ibirahure, na lisiti ya kirisiti ni mbi cyane.Imikorere yo kohereza CR-39 lens muri resin lens nziza cyane kuruta PMMA.