Cov ntsiab lus tseem ceeb ntawm kev tsim ntawm LED zaj duab xis thiab lub teeb TV
1. Optical tsim
LED yog qhov chaw teeb pom kev zoo, raws li lub npe cuam tshuam, nws yog lub teeb tawm los ntawm qhov taw tes, thiab nws cov yam ntxwv yog tias muaj lub teeb nyob hauv ib qho kev taw qhia. Yog tias koj xav siv lub teeb tshwj xeeb no los ua lub teeb studio, koj yuav tsum ua nrog lub teeb ci rau qee qhov thiab tig qhov teeb pom kev zoo no rau hauv astigmatism nrog lub kaum ntse ntse kom ua tau raws li qhov yuav tsum tau ua thiab lub hom phiaj. Feem ntau, straw kaus mom LEDs yog siv los hloov lub teeb los ntawm lub teeb pom kev zoo rau hauv qhov chaw teeb pom kev zoo nrog lub kaum ntse ntse. Nyob rau tib lub sij hawm, nws lub teeb attenuation nyhuv kuj yog heev me me, uas txhim kho qhov kev siv ntawm lub teeb. LED zaj duab xis thiab TV teeb tau muab faib ua LED zaj duab xis thiab TV tiaj tus teeb thiab LED zaj duab xis thiab TV tsom teeb. Thaum LEDs tau siv rau hauv LED zaj duab xis thiab TV lub teeb lub teeb, txawm hais tias lub kaus mom straw LED tau diffused thiab softened lub teeb, lub teeb tseem yog ib qho tseem ceeb, thiab ib tug mos mos board feem ntau yog siv los txhim kho lub teeb. Mos, lub teeb ua tau raws li qhov xav tau ntawm studio teeb pom kev zoo.
2. Qhov txawv ntawm high-power thiab low-power LEDs
Tam sim no, lub zog ntawm ib lub teeb ci LED hlaws tuaj yeem ncav cuag ntau dua 200W, tab sis nws cov nqi kev ua tau zoo yog qis dua li ntawm lub zog qis LED teeb hlaws. Piv txwv li, LED zaj duab xis thiab TV tiaj lub teeb siv ntau 0.06W ib leeg LED me hlaws, thiab nws qhov ci tuaj yeem ncav cuag 7lm. Raws li 6lm, nws lumen yog 102lm / W; thiab lub zog ntawm 1W LED teeb hlaws tuaj yeem ncav cuag 80lm. , Nws cov lumen yuav tsum tsawg dua 80lm / W. Nyob rau tib lub sij hawm, tus nqi ntawm high-power LEDs yog siab tshaj qhov uas tsis muaj zog. Qhov no los ntawm ob qho tib si, ib qho yog tus nqi ntawm LED nws tus kheej, thiab lwm qhov yog tias cov LEDs siab zog yuav tsum muaj cua sov ntau dua. Nws tuaj yeem pom tias qhov ci ntsa iab ntawm LED zaj duab xis thiab TV tiaj tus vaj huam sib luag lub teeb nrog tib lub zog yog qhov zoo dua yog tias lub zog qis LED teeb hlaws raug xaiv.
3. Thaum tshav kub kub dissipation tsim
LED yog ib qho khoom siv semiconductor, uas muaj qee qhov kev xav tau ntawm qhov ntsuas kub thiab ua haujlwm kub, uas cuam tshuam rau lub neej kev pab cuam ntawm LED. Feem ntau, ambient kub yog qis dua 20 ° C, thiab PN hlws ris kub hauv lub LED yog qis dua 140 ° C. Lub zog ntawm LED video teeb yog loj, tus naj npawb ntawm LED teeb hlaws yog loj, thiab kev npaj yog meej. Feem ntau, cov cua kub dissipation system yuav tsum tau tsim los xyuas kom meej tias lub teeb ua haujlwm li qub. Lub thermal tsis kam ntawm LED teeb hlaws yog ntau qhov sib txawv hauv cov qauv ntawm cov khoom ntim, uas yog ncaj qha ntsig txog qhov kub thiab txias thiab cuam tshuam rau lub neej kev pab cuam ntawm LED thiab lub teeb nyhuv ntawm lub teeb. Thaum tsim lub LED video vaj huam sib luag teeb, lub teeb hlaws yuav tsum tau muab faib kom sib npaug li qhov ua tau kom tsis txhob muaj cua sov qhov chaw. Qhov kev tsav tsheb ntau dua, qhov zoo dua, thiab cov txheej txheem yuav tsum tau ua raws li lub hauv paus ntsiab lus ntawm cov cua kub loj tshaj plaws.
4. Cov teeb meem tam sim no hauv kev tsim cov cua sov dissipation
Ntuj tshav kub dissipation yog heev txwv los ntawm qhov chaw, thiab kev txhim kho qhov chaw yog txwv (kua hluav taws xob cua sov dissipation nws tus kheej muaj me ntsis cuam tshuam thiab yog txwv los ntawm qhov chaw loj).
Feem ntau ntawm cov cua sov dissipation tsim tsuas yog tsom rau kev xaiv ntawm cov hlaws dai, qhov chaw tshav kub dissipation, lub interface hu rau thermal resistance, thiab hluav taws xob hluav taws xob dissipation, uas yuav luag tuag.
Lub ntsiab lus ntawm kev tsim cov cua sov dissipation yog cov cua kub dissipation tsim ntawm lub teeb pom kev zoo, uas yog tshwm sim los ntawm kev sib xyaw ua ke ntawm cov khoom siv tiag tiag, cov khoom siv, cov qauv tsim thiab ntau yam kev paub hauv kev tsim hluav taws xob.
