Eminyakeni yamuva, ngokusetshenziswa kabanzi kwe-solid-stateIzibani ze-LED, abantu abaningi bazama nokuhlaziya ubunkimbinkimbi nezindlela zokulawula zobuchwepheshe bombala we-LED.

Mayelana Nokuxuba Okungeziwe

Izibani zezikhukhula ze-LEDsebenzisa imithombo eminingi yokukhanya ukuze uthole imibala ehlukahlukene nokuqina. Embonini yezibani zokuzijabulisa, ukwengeza nokuxuba imibala sekuvele kuyi-clich é. Sekuyiminyaka eminingi odokotela besebenzisa amalambu anezihlungi zemibala ukuze baveze indawo efanayo ku-canopy, okungelula ukuyilawula. Isibani esinemithombo yokukhanya emithathu ye-MR16, ngayinye enezihlungi ezibomvu, eziluhlaza, neziluhlaza okwesibhakabhaka. Ezinsukwini zokuqala, lolu hlobo lwesibani lwaluneziteshi zokulawula ze-DMX512 kuphela futhi azikho iziteshi zokulawula amandla ezizimele. Ngakho-ke kunzima ukugcina umbala ungashintshiwe phakathi nenqubo yokufiphalisa. Ngokuvamile, abahleli bezinhlelo zokukhanya kwekhompuyutha baphinde bamise "ukushintsha kombala okhanyayo" ukuze bacime kalula izibani. Yebo, zikhona izindlela ezingcono, futhi ngeke ngizibale zonke lapha.

Ukulawula kanye Nencazelo Yemibala

Uma umsebenzisi engasebenzisi amanani amsulwa e-DMA ukuze alawule izinto zokukhanyisa ezihlakaniphile, kodwa esebenzisa indlela ethile yokulawula engabonakali, inani lamandla abonakalayo lingasetshenziswa. Ngisho noma umkhiqizi ecacisa ukuthi izinto zokukhanyisa zisebenzisa amashaneli e-DMA amathathu, indlela yokulawula engabonakali isenganikezwa izibambo ezine ukuze zilawule: inani lokuqina kanye nemingcele emithathu yombala.

Amapharamitha amathathu ombala “esikhundleni sokubomvu, oluhlaza okotshani, noluhlaza okwesibhakabhaka, njengoba i-RGB iyindlela eyodwa kuphela yokuchaza imibala. Enye indlela yokuyichaza i-hue, saturation, kanye nokukhanya kwe-HSL (abanye bayibiza ngokuqina noma ukukhanya, kunokukhanya). Enye incazelo i-hue, saturation, kanye nenani le-HSV. Inani, elaziwa nangokuthi ukugqama, lifana nokuKhanya. Nokho, kunomehluko omkhulu encazelweni yokugcwaliswa kwesikhala phakathi kwe-HSL ne-HSV. Ukuze kube lula, kulesi sihloko, umbhali uchaza i-hue njengombala nokugcwaliswa kwesikhala njengenani lombala. Uma 'L' isethelwe ku-100%, imhlophe, i-0% imnyama, futhi u-50% ka-L uwumbala omsulwa onokugcwaliswa kwesikhala okungu-100%. Ku-'V', u-O% umnyama futhi u-100% uqinile, futhi inani lokugcwaliswa kwendawo kufanele lenze umehluko.

Enye indlela esebenzayo yokuchaza i-CMY, okuwuhlelo oluyisisekelo lwemibala emithathu olusebenzisa ukuxutshwa kombala okukhiphayo. Uma ukukhanya okumhlophe kukhishwa ekuqaleni, khona-ke izihlungi ezimbili zombala zingasetshenziswa ukuthola okubomvu: i-magenta nephuzi; Basusa izingxenye eziluhlaza okwesibhakabhaka ekukhanyeni okumhlophe ngokwehlukana. Ngokuvamile,Amalambu okushintsha umbala we-LEDungasebenzisi ukuhlanganisa imibala ekhiphayo, kodwa lokhu kuseyindlela ephumelelayo yokuchaza imibala.

Ngokombono, lapho ulawula ama-LED, kufanele kwenzeke ukulungisa ukuqina kanye ne-RGB, i-CMY One ye-HSL noma i-HSV (nomehluko othile phakathi kwawo).

Mayelana nokuxubana kombala we-LED

Iso lomuntu likwazi ukubona ukukhanya ngamaza amaza asukela ku-390 nm kuya ku-700 nm. Ukulungiswa kokuqala kwe-LED kwakusetshenziswa kuphela okubomvu (cishe u-630 nm), okuluhlaza (cishe u-540 nm), nama-LED aluhlaza okwesibhakabhaka (cishe 470 nm). Le mibala emithathu ayikwazi ukuxutshwa ukuze ikhiqize wonke umbala obonakalayo emehlweni omuntu