Sefayi ya neutral density ndi mtundu wa optical attenuator, womwe ungathe kuchepetsa kuwala kwa kuwala.Kuwala kochokera kudera lowoneka bwino kupita kudera lapafupi ndi infrared kuwala kumadutsa musefa wosalowerera ndale, mafunde osiyanasiyana amachepetsedwa mofanana, kotero kuti chinthu chowoneka bwino chimachepetsedwa mofanana.Kutumiza kwa mphamvu ya kuwala kumasungidwa pafupifupi mofanana mu bandi yotakata.Zomwe zimatchedwanso neutral density filter, neutral filter, ND filter, attenuation filter, fixed kachulukidwe fyuluta, etc.Zosefera zowunikira za ND zimakhala ndi zokutira zowoneka bwino zamafilimu, nthawi zambiri zachitsulo, zomwe zimagwiritsidwa ntchito pagawo lagalasi.Chophimbacho chikhoza kukonzedwa kuti chikhale ndi mafunde amtundu wina.Makanema opyapyala amawonetsa kuwala komwe kumachokera.Chisamaliro chiyenera kuchitidwa kuti kuwonetsetsa kuti kuwala sikusokoneza dongosolo.Zosefera za Absorptive ND zimagwiritsa ntchito gawo lapansi lagalasi kuti lizitha kuyatsa kuchuluka kwa kuwala.
Wavelength | 200-1000nm |
ND | 0.1-4, ndi zina. |
Kukula | Zosinthidwa malinga ndi zosowa za makasitomala |
Amagwiritsidwa ntchito kwambiri pazida zoyezera za ultraviolet, ma lasers osiyanasiyana, makamera a digito, makamera amakanema, kuyang'anira chitetezo, zida ndi zida zosiyanasiyana, zosefera zolumikizirana, makina owonera, mita ya utsi, zida zoyezera, pafupi ndi infrared spectrometer, zida zowunikira biochemical. , ndi zina.