Lub cev qauv
Muab tso nruab nrab ntawm lub teeb tsa hluav taws xob ua ke nrog cov txheej ntawm cov khoom siv hluav taws xob nrog cov kev ua si, lawv cov nplaim yog polished nrog qee qhov kev xav, ua rau muaj qhov kho qhov muag hluav taws xob. Nyob rau yav tom ntej kev tsis ncaj ncees cov ntaub ntawv, lub LED emits lub teeb nrog sib cuam tshuam nrog kho qhov muag kab, thiaj li ntxiv kev txhawb zog los ntawm pob cyuam tua ib qho yoj yoj ntawm lub teeb, cov khoom siv lub cev ntawm lub teeb thiab cov khoom siv.
VCD tshuab, semiconductor laser diode laser lub taub hau yog ib qho ntawm cov tub ntxhais sib xyaw, nws feem ntau yog los ntawm cov qauv sib txawv ntawm gallium aluminium Arsenide (AsALGA) ternary compound, yog qhov ze-infrared semiconductor ntaus thiab yoj yoj ntawm 780 ~ 820 NM, lub zog ntawm 3 ~ 5 MW. Tsis tas li ntawd, tseem muaj qhov pom kev pom (liab) laser diode, siv dav hauv VCD player nrog bar nyeem nyeem.