LED teeb siv tsuas yog 1/10 dua hwj huam tshaj qhov tsheb npav halogen qij, uas txuag hluav taws xob thiab tiv thaiv lub tsheb npav ntawm ntau cov dej ntsaws. Nws muaj qhov zoo li nram qab no:
High brightness, tsawg zog noj, ntev lub neej thiab me me
Teeb nce tsis tau qeeb
Yooj yim qauv, zoo stability thiab poob siab ua hauj
Lub teeb pom kev zoo siab yog ib qho chaw "ntsuab" uas yog qhov tseem ceeb dawb.
Disadvantages: Tus nqi ntau dua, thiab qhov kev teeb tsa no tsuas yog muaj rau cov tsheb npav khoom kim heev xwb.
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Lub hauv paus: Ib qho hluav taws xob-dias diode yog ib qho khoom siv hluav taws xob lub xeev-xeev uas hloov cov hluav taws xob ncaj qha mus rau hauv lub teeb. Lub plawv ntawm lub LED yog lub semiconductor wafer nrog ib kawg nrog rau ib lub yas dhos, ib kawg ua tus ncej tsis zoo thiab lwm qhov kawg txuas nrog lub ncej ntawm lub hwj chim, kom tag nrho cov wafer yog encapsulated los ntawm epoxy. Lub semiconductor wafer muaj ob ntu, ib qho yog ib hom P-type semiconductor, qhov twg lub qhov taub, thiab lwm qhov kawg yog ib qho N-type semiconductor, uas yog cov hluav taws xob ntawm no. Tab sis thaum ob lub semiconductors muaj kev cob cog rua, lawv ua tus "PN hlav." Thaum twg tam sim no siv rau cov wafer los ntawm cov hlau, cov electrons raug thawb mus rau thaj av P. Hauv thaj chaw P, cov electron recombine nrog rau qhov, thiab ces lub zog yog emitted nyob rau hauv daim ntawv ntawm photons. Qhov no yog txoj cai ntawm LED illumination. Lub wavelength ntawm lub teeb, uas yog xim ntawm lub teeb, yog txiav txim siab los ntawm cov khoom uas ua tus PN nkag.
