1. Nheyo ye lens UV transmittance yekuona
Chiyero chekufambisa kwemagirazi ezuva hachigone kugadziriswa seavhareji yakapfava yeavhareji yekutapurirana pawavelength yega yega, asi inofanirwa kuwanikwa nekuremerwa kubatanidzwa kweiyo spectral transmittance zvichienderana nehuremu hwemawavelength akasiyana.Ziso remunhu iri simple optical system.Paunenge uchiongorora kunaka kwemagirazi, kunzwisiswa kweziso remunhu kuchiedza chemwaranzi yemawavelengths akasiyana kunofanirwa kutanga kutariswa.Muchidimbu, ziso remunhu rinonzwa nechiedza chegirini, saka kufambiswa kwegirinhi bhandi rechiedza kune simba guru pakufambiswa kwechiedza chelenzi, ndiko kuti, huremu hwegirini bhandi hukuru;pane kudaro, nekuti ziso remunhu harina hanya nechiedza chepepuru uye dzvuku mwenje, saka The transmittance yepepuru mwenje uye dzvuku mwenje ine mhedzisiro idiki pane mwenje transmittance yelens, ndiko kuti, huremu hwepepuru mwenje uye bhendi tsvuku tsvuku zvakare idiki.Nzira inoshanda yekuona iyo anti-ultraviolet mashandiro emalenzi ndeyekutarisisa uye kuongorora kutapurirana kweUVA neUVB spectra.
2. Kuedza midziyo uye nzira
Iyo spectral transmittance tester inogona kushandiswa kuyera iyo spectral transmittance yemagirazi ezuva munharaunda yeultraviolet kuona kunaka kweiyo sampuli ultraviolet transmittance.Batanidza iyo spectral transmittance mita kune komputa serial port, tanga chirongwa chekushanda, ita chiyero chezvakatipoteredza pa23 ° C ± 5 ° C (isati yagadziriswa, inofanirwa kusimbiswa kuti chikamu chekuyera hachina lens kana sefa), uye isa bvunzo. wavelength kureba kusvika 280 ~ 480 nm, tarisa ultraviolet mwaranzi ye lens pasi pemamiriro ekukurisa kweiyo transmittance curve.Pakupedzisira, isa ma lenzi akaedzwa pabvunzo dzerubha plugs kuti uedze mwenje transmittance (chinyorwa: pukuta malenzi uye test rubber plugs kuchenesa usati waedzwa).
3. Matambudziko pakuyera
Pakuonekwa kwemagirazi ezuva, iyo transmittance calculation ye ultraviolet band inotora nzira iri nyore yeavhareji ye spectral transmittance, iyo inotsanangurwa seavhareji transmittance.Kune imwecheteyo sampuli iri pasi pekuyedzwa, kana tsananguro mbiri dzeQB2457 uye ISO8980-3 dzakashandiswa kuyerwa, mhedzisiro yeultraviolet waveband transmittance yakawanikwa zvakasiyana zvachose.Kana kuyerwa maererano netsanangudzo ye ISO8980-3, mhedzisiro yakaverengerwa yekutapurirana muUV-B bhendi i60.7%;uye kana ikayerwa zvinoenderana netsanangudzo yeQB2457, mhedzisiro yakaverengerwa yekutapurirana muUV-B bhendi i47.1%.Zvigumisiro zvakasiyana ne13.6%.Zvinogona kuonekwa kuti mutsauko muyero yereferensi inotungamira zvakananga kumusiyano mune zvinodiwa zvehunyanzvi, uye pakupedzisira inokanganisa kurongeka uye chinangwa chemhedzisiro yekuyera.Pakuyera kutumirwa kwezvigadzirwa zvemaziso, dambudziko iri harigone kuregererwa.
Kufambiswa kwezvigadzirwa zvemagirazi ezuva uye lens zvinhu zvinoedzwa nekuongororwa, uye kukosha chaiko kunowanikwa nekuremerwa kubatanidzwa kweiyo spectral transmittance, uye mhedzisiro yezvakanakira nekuipira zvezvigadzirwa zvemagirazi zvinowanikwa.Chekutanga pane zvese, zvinoenderana nekuti zvinhu zve lens zvinogona kuvharira ultraviolet rays, UVA neUVB, uye inogona kufambisa mwenje unooneka kuti uwane anti-glare basa.Ongororo dzakaratidza kuti kutapurirana kweresin lenzi ndiko kwakanyanya, kuteverwa negirazi lenzi, uye makristasi lenzi ndiwo akaipisisa.Kufambiswa kwekuita kweCR-39 lenzi pakati pe resin lenzi kuri nani kupfuura PMMA.
Nguva yekutumira: Nov-10-2021