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Inkomba yokunikeza umbala (CRI) yemigqa ye-LED
2024-09-13 14:33:34
Inkomba yokunikeza umbala (CRI) iyipharamitha evame ukusetshenziswa emkhakheni wobuchwepheshe bokukhanyisa. Kubhekiselwa esilinganisweni sezinga umbala wento ovumelana ngalo lapho ukhanyiswa yilomthombo wokukhanya nalapho ukhanyiswa umthombo wokukhanya ovamile (ngokuvamile kusetshenziswa ukukhanya kwelanga njengomthombo wokukhanya ovamile), okungukuthi, kanjani namaqiniso umbala.
1.CRI incazelo
Kubasebenzi bokukhanyisa, inkomba ye-color rendering (CRI) yitemu elisetshenziswa kakhulu. Sivamise ukubona inani le-CRI kudatha yemithombo yokukhanya, futhi siyazi ukuthi libonisa ikhwalithi yomthombo wokukhanya ngokuya ngokunikezwa kombala.
Kodwa lisho ukuthini ngempela? Inani le-CRI lisiza ukunquma ukuthi yimuphi umthombo wokukhanya okufanele usetshenziswe kudivayisi yokukhanyisa. Lapho inani le-CRI liphakeme, lingcono, kodwa ingabe abantu bayazi ukuthi lilinganisa ini nokuthi lilinganisa kanjani? Isibonelo, inani le-CRI le-OLIGHT S1MINI lingama-90. Yiluphi ulwazi olwedluliswayo lokhu? Izinga lokukhanyisa lemnyuziyamu kufanele libe ngaphezu kwe-CRI 95. Kungani?
Ukukubeka kalula: ukunikezwa kombala kuyisici esibalulekile sokuhlola ikhwalithi yokukhanyisa, futhi inkomba yokunikeza umbala iyindlela ebalulekile yokuhlola ukunikezwa kombala kwemithombo yokukhanya. Ipharamitha ebalulekile yokulinganisa izici zombala wemithombo yokukhanya yokwenziwa. Uma inkomba yokunikeza umbala iphezulu, ukunikezwa kombala komthombo wokukhanya kungcono. Umbala ungcono, amandla okubuyisela umbala wento anamandla.
I-International Commission on Illumination (CIE) ichaza ukunikezwa kombala ngokuthi: umphumela womthombo wokukhanya ekubukekeni kombala wento uma kuqhathaniswa nomthombo wokukhanya oyisithenjwa ojwayelekile.
Ngamanye amazwi, i-CRI iyindlela yokulinganisa yokubonwa kombala komthombo wokukhanya uma kuqhathaniswa nomthombo wokukhanya ojwayelekile (njengokukhanya kwasemini). I-CRI iyimethrikhi eyaziwa emhlabeni wonke futhi ewukuphela kwendlela yokuhlola nokubika ukunikezwa kombala komthombo wokukhanya. indlela.
Ukusungulwa kwezinga lemethrikhi ye-CRI akukude. Inhloso yasekuqaleni yokusungula leli zinga kwakuwukulisebenzisa ukuchaza izici ezinikeza umbala zamalambu e-fluorescent ayesetshenziswa kabanzi ngeminyaka yawo-1960, kanye nokusiza abasebenzisi baqonde ukuthi amalambu e-fluorescent anokusabalalisa kwe-spectral angasetshenziswa Kuziphi izikhathi.
2.CRI ubuchwepheshe
Yize lezi zithombe zombala zicaciswa ngokucophelela futhi izinto zangempela zingakhiqiza imibala yalawa ma-swatches, kubalulekile ukuqonda ukuthi amanani e-CRI atholakala ngokuphelele ngokubala futhi awakhanyi ngempela iwashi lombala langempela ngomthombo wokukhanya wangempela.
Okufanele sikwenze ukusebenzisa i-spectrum yomthombo wokukhanya olinganiselwe ukuze siqhathanise ne-spectrum yesampula yombala eshiwo, bese sithola futhi sibale inani le-CRI ngokuhlaziywa kwezibalo.
Ngakho-ke, ukulinganiswa kwevelu ye-CRI kuyinani futhi kuhloswe. Akusona neze isilinganiso esizimele (ukulinganisa okungaphansi kuncike kuphela kusibukeli esiqeqeshiwe ukuze sahlulele ukuthi yimuphi umthombo wokukhanya onokunikeza umbala okungcono).
Ukuqhathanisa okusekelwe ekubonweni kombala nakho kunengqondo, inqobo nje uma izinga lokushisa lombala lakho kokubili umthombo wokukhanya olinganisiwe kanye nomthombo wokukhanya wereferensi kufanele kufane.
Isibonelo, ukuzama ukuqhathanisa ukubukeka kwama-swatches emibala amabili afanayo akhanyiswa umthombo wokukhanya omhlophe ofudumele onezinga lokushisa lombala elingu-2900K kanye nomthombo wokukhanya omhlophe opholile (ukukhanya kwasemini) onezinga lokushisa lombala elingu-5600K kuwukuchitha isikhathi okuphelele.
Kumelwe zibukeke zihlukile, ngakho izinga lokushisa lombala elihlobene (CCT) lomthombo wokukhanya olinganiselwe libalwa kusukela ku-spectrum yomthombo wokukhanya. Uma usunalokhu kushisa kombala, omunye umthombo wokukhanya oyisithenjwa wezinga lokushisa lombala ofanayo ungadalwa ngokwezibalo.
Kumthombo wokukhanya olinganiselwe onezinga lokushisa elinombala elingaphansi kuka-5000K, umthombo wokukhanya oyisithenjwa irediyetha emnyama (i-Planck), futhi kumthombo wokukhanya olinganiselwe onezinga lokushisa lombala elingaphezu kuka-5000K, umthombo wokukhanya oyisithenjwa yi-CIE standard illuminant D.
Okukhethiwe kungahlanganisa i-spectrum yomthombo wokukhanya wereferensi nesampula yombala ngamunye ukuze kukhiqizwe isethi yamaphoyinti afanelekile wokudidiyela umbala wereferensi (amaphoyinti ombala ngamafushane).
Okufanayo kuyiqiniso ngomthombo wokukhanya ngaphansi kokuhlolwa. I-spectrum yomthombo wokukhanya ongaphansi kokuhlolwa ihlanganiswa nesampula ngayinye yombala ukuze kutholwe enye isethi yamaphoyinti ombala. Uma iphoyinti lombala elingaphansi komthombo wokukhanya olinganisiwe lihambisana ncamashi nephoyinti lombala elingaphansi komthombo wokukhanya wereferensi, sicabangela izici zabo zokunikeza umbala njengezifana futhi simisa inani lazo le-CRI libe ngu-100.
Eshadini lombala, lapho iphoyinti lombala elingaphansi komthombo wokukhanya olinganisiwe lisuka endaweni efanelekile ehambisanayo, liba libi kakhulu ukunikezwa kombala kanye nenani eliphansi le-CRI.
Bala ukugudluka kombala wamapheya angu-8 amasampuli ombala ngokuhlukene, bese ubala izinkomba ezikhethekile ezingu-8 zokunikeza imibala (inani le-CRI lomthombo wokukhanya wesampula ethile yombala libizwa ngokuthi inkomba enikeza umbala okhethekile), bese uthatha isilinganiso sazo se-arithmetic, inani elitholiwe yinani le-CRI.
Inani le-CRI elingu-100 lisho ukuthi awukho umehluko wombala phakathi kwanoma yimaphi amasampula ombala kumapheya ayisishiyagalombili amasampuli ombala ngaphansi komthombo wokukhanya olinganiselwe kanye nomthombo wokukhanya oyireferensi.
3.Iyini inkomba yokunikeza umbala yezibani ze-LED incike kuyo?
Inkomba yokunikeza umbala yezibani ze-LED incike kakhulu kwikhwalithi nesilinganiso sama-phosphors. Ikhwalithi nesilinganiso sama-phosphor sinomthelela obalulekile kunkomba yokunikeza umbala yezibani ze-LED. Ama-phosphor ekhwalithi ephezulu anganikeza ukungaguquguquki kwezinga lokushisa lombala okungcono kanye nokukhukhuleka kokushisa kombala okuncane, ngaleyo ndlela kuthuthukise inkomba yokunikeza umbala. 12
Amandla okushayela azophinde athinte inkomba enikeza umbala yesibani se-LED. Ukushayela okukhudlwana kuzobangela izinga lokushisa lombala ukuthi likhukhuleke liye emazingeni okushisa aphezulu, ngaleyo ndlela kunciphise inkomba yokunikeza umbala.
Isistimu yokukhipha ukushisa ye-LED nayo inomthelela othile kunkomba yokunikeza umbala. Uhlelo oluthembekile lokukhipha ukushisa lungaqinisekisa ukusebenza okuzinzile kwezibani ze-LED futhi lunciphise ukuncisha ukukhanya nokwehla kwenkomba yokunikeza umbala okubangelwa ukunyuka kwezinga lokushisa.
Ukusatshalaliswa kwe-spectral komthombo wokukhanya kuyisici esibalulekile ekunqumeni inkomba yokunikeza umbala. Ingxenye nokuqina kwemibala ehlukahlukene equkethwe ku-spectrum ithinta ngokuqondile inkomba yokunikeza umbala. Ukusatshalaliswa okubanzi okubanzi, kuyanda inkomba yokunikeza umbala, kanye nokusebenza kombala okungokoqobo.