Izibane ze-LED ezibomvu/ezibhlowu zidla ngokubizwa ngokuba yi-spectroscopy yebhendi emxinwa kuba zikhupha amaza obude ngaphakathi kuluhlu oluncinci lwebhendi.
Izibane ze-LED ezinokukhupha ukukhanya "okumhlophe" zidla ngokubizwa ngokuba "yi-spectrum ebanzi" okanye "i-spectrum epheleleyo" kuba ziqulethe yonke i-spectrum ebanzi, efana kakhulu nelanga ebonisa ukukhanya "okumhlophe", kodwa eneneni kukho. akukho ukukhanya okumhlophe okwenyani ubude bewavenge.
Kufuneka kuphawulwe ukuba ngokusisiseko zonke ii-LED "ezimhlophe" zizikhanyiso eziluhlaza okwesibhakabhaka ngenxa yokuba zigqunywe umaleko wephosphor oguqula ukukhanya okuluhlaza kube ngamaza amade.Iphosphors ifunxa ukukhanya okuluhlaza kwaye iphinde ikhuphe ezinye okanye uninzi lweefotoni zibe kukukhanya okuluhlaza nokubomvu.Nangona kunjalo, le ngubo inciphisa ukusebenza kakuhle kokuguqulwa kwefoton kwi-photosynthetic esebenzayo imitha (PAR) ukukhanya okusebenzisekayo, kodwa kwimeko yomthombo wokukhanya omnye, inceda ukubonelela ngemeko engcono yokusebenza kunye nokumisela umgangatho we-spectral.
Ngamafutshane, ukwazi ukusebenza kwesibane, kufuneka uhlukanise i-photosynthetic photon flux (PPF) nge-input wattage, kunye nexabiso lokuphumelela kwamandla elifunyenweyo lichazwa njenge "μmol / J".Ixabiso elikhulu, isibane siya kuguqula amandla ombane kwi-photons ye-PAR, iphezulu ukusebenza kakuhle kuya kuba.
1.Ukukhanya kwe-LED ebomvu / eluhlaza okwesibhakabhaka
Abantu abaninzi bahlala benxulumanisa izibane "ezimfusa/ezipinki" ze-LED zokukhulisa izibane kunye nezibane zasegadini.Basebenzisa imidibaniso eyahlukeneyo ye-LED ebomvu kunye neblue, kwaye bacetyiswa ngokukodwa kubalimi be-greenhouse abanokufumana ukukhanya kwelanga.Ekubeni i-photosynthesis iphakamileyo kumaza abomvu naluhlaza okwesibhakabhaka, le ndibaniselwano ye-spectra ayilona kuphela isebenzayo ekukhuleni kwezityalo, kodwa inamandla kakhulu.
Ngokwale mbono, ukuba umlimi unokusebenzisa ukukhanya kwelanga, kunengqiqo ukutyala amandla amaninzi kwi-wavelength eyona nto inceda kwi-photosynthesis, ukwenzela ukwandisa ukonga amandla.Izibane ezibomvu / ezihlaza okwesibhakabhaka ze-LED zinamandla ngakumbi kune-"white" okanye i-LED egcweleyo, kuba i-LED ebomvu / eluhlaza okwesibhakabhaka ineyona ndlela iphakamileyo ye-photon xa kuthelekiswa neminye imibala;oko kukuthi, banokuguqula awona mandla ombane kwiifotoni, ngoko ke ixabiso Kwidola nganye, izityalo zinokukhula ngakumbi.
2.Ukukhanya okubanzi "ukukhanya okumhlophe" ukukhanya kwe-LED yokukhula
Kwi-greenhouse, ukukhanya kwelanga kwangaphandle kuya kucima ukukhanya "okupinki okanye okumfusa" okuphuma kwizibane ezibomvu / eziluhlaza ze-LED.Xa i-LED ebomvu / eluhlaza okwesibhakabhaka isetyenziswa njengomthombo wokukhanya omnye ngaphakathi kwindlu, i-spectrum ebonelela ngayo kwizityalo ilinganiselwe kakhulu.Ukongezelela, ukusebenza kulo kukhanya kunokuba nzima kakhulu.Ngenxa yoko, abavelisi abaninzi bangaphakathi baye batshintsha ukusuka kwii-LED ezinokukhanya okumxinwa ukuya "ezimhlophe" ezigcwele izibane ze-LED ezikhulayo.
Ngenxa yamandla kunye nokulahleka kwe-optical kwinkqubo yokuguqulwa, amandla asebenzayo ee-LED ezibanzi ziphantsi kune-LED ebomvu / eluhlaza okwesibhakabhaka.Nangona kunjalo, ukuba isetyenziswe njengokuphela komthombo wokukhanya kwezolimo zangaphakathi, izibane ezibanzi ze-LED zokukhula zingcono kakhulu kunezibane ezibomvu / eziluhlaza okwesibhakabhaka ze-LED kuba zinokukhupha iindidi zamaza kwizigaba ezahlukeneyo zokukhula kwezityalo.
Izibane zokukhula kwe-LED kufuneka zinike umgangatho wokukhanya ofanelekileyo kakhulu ekukhuleni kwezityalo kunye nesivuno, ngelixa zivumela ukuguquguquka kweentlobo zezityalo kunye nemijikelo yokukhula, kunye nokudala indawo yokusebenza ekhululekile.
Ixesha lokuposa: Mar-22-2021