Mhute nemvura inonaya zvakajairika. Mumamiriro ezvinhu aya akaderera, kutyaira kana kufamba mumugwagwa kunogona kuva kwakaoma kune vatyairi nevanofamba netsoka, asi teknolojia yemazuva ano yemwenje ye LED iri kupa vafambi kufamba kwakachengeteka.
Chiedza chenzira ye LEDinzvimbo yakasimba-inotonhora inotonhora sosi, ine hunhu hwekuchengetedza kwezvakatipoteredza, hapana kusvibiswa, kuderera kwesimba rekushandisa, kupenya kwakanyanya, uye hupenyu hurefu. Naizvozvo, mwenje wemugwagwa we LED unova sarudzo yakanakisa yekugadziridza-kuchengetedza simba kwemwenje wemugwagwa. Chiedza chemugwagwa che LED inzvimbo yakakwirira-yakasimba yakasimba-nyika chiedza inobva pane semiconductor pn junction, iyo inogona kubudisa chiedza nemagetsi asina simba. Pasi peimwe positive bias voltage uye jekiseni razvino, maburi anobaiwa mu-p-region uye maerekitironi akaiswa mu-n-dunhu anopararira kunharaunda inoshanda mushure mekusanganiswa kwemwaranzi uye kuburitsa mafotoni, achishandura zvakananga simba remagetsi kuita simba rechiedza. Chiedza chemugwagwa che LED inzvimbo yakakwirira-yakasimba yakasimba-nyika chiedza inobva pane semiconductor pn junction, iyo inogona kubudisa chiedza nemagetsi asina simba. Pasi peimwe positive bias voltage uye jekiseni razvino, maburi anobaiwa mu-p-region uye maerekitironi anobaiwa mu-n-dunhu anopararira kunharaunda inoshanda mushure mekusanganiswa kwemwaranzi uye kuburitsa mafotoni, achishandura zvakananga simba remagetsi kuita simba rechiedza.
Zvakanakira zvemwenje wemugwagwa we LED mumhute nemvura zvinogona kuratidzwa muzvikamu zvitatu:
1. The inherent directionality yechiedza chakabudiswa;
2. Wavelength maitiro e LED machena;
3. Kuwanda kweiyi wavelength kana ichienzaniswa nemamwe magetsi.
Musiyano uripo pakati pemwenje we LED uye mamwe ese emwenje masosi ndiyo inotonga wavelength kwainoburitsa simba, uye kuti madonhwe emvura anopindirana sei kana kukanganisa danda pawavelength iyoyo, kunyanya sekushanduka kwemadonhwe emvura.
Zviedza zvinonyanya kubudisa simba rechiedza mu blue wavelengths yezvinooneka spectrum, zvakadai se LEDs, inoita zviri nani kudarika mamwe magetsi mumamiriro ekuderera.
Chiedza munharaunda yeviolet ye spectral range ine mapfupi marefu kupfuura chiedza munzvimbo tsvuku. Mhepo yemhute yemvura mumhepo inowanzopfuura chiedza muyero-orenji-tsvuku, asi inowanzoparadzira chiedza chebhuruu. Izvi zvinogona kunge zvichikonzerwa nekuti zvimedu zvemvura zvinowanzofanana neblue wavelengths. Naizvozvo, kana denga rakachena mushure mekunaya kwemvura kana mhepo yakajeka mukuvhuvhuta (kune mashoma matete particles mumhepo, kunyanya kupararira kwema molecular), pasi pekupararira kwakasimba kwemamorekuru emuchadenga, mwenje webhuruu unopararira kuzadza denga. uye denga rinooneka rebhuruu. Ichi chiitiko chinozivikanwa seRayleigh kupararira.
Mumamiriro ekunze akaderera, zvimedu zvemvura zvinowedzera kukura kusvika pazvinenge zvisisafanane nehukuru hweblue light wavelengths. Panguva ino, iwo anofananidzwa muhukuru kune yero-orenji-dzvuku wavelengths. Zvimedu zvemvura zvinowanzoparadzira nekudzvanyirira chiedza mumabhandi aya, asi kupfuura chiedza chebhuruu. Ichi ndicho chikonzero chiedza chezuva dzimwe nguva chichigona kuoneka sebluish kana girinhi nekuda kwemhute.
Kubva pahukuru hwemvura kusvika kune wavelength, mwenje wemugwagwa we LED ndiyo yakanakisa sarudzo kune yakaderera kuoneka mamiriro. Iyo tembiricha yemavara uye dhizaini yekuvhenekesa inogadzira akanakisa mugwagwa mamiriro panguva yekunaya uye mhute. Nekuvandudza kuoneka, marambi emumugwagwa eLED anochengetedza migwagwa mumvura inonaya mvura uye munzvimbo dzine mhute.
Kana iwe uchida mwenje wemugwagwa we LED, unogamuchirwa kuti ubate mwenje wemwenje we LED mugadziri TIANXIANG kuverenga zvimwe.
Nguva yekutumira: Aug-02-2023