1. Kev sib hloov symmetry
Lub luminaire txais ib lub rotationally symmetric reflector, thiab symmetry axis ntawm lub teeb qhov chaw nrog rotationally symmetric teeb faib yog ntsia raws lub axis ntawm lub reflector. Lub iso-kev siv nkhaus ntawm hom teeb no yog concentric voj voog. Thaum lub teeb pom kev zoo li no yog illuminated los ntawm ib lub teeb, ib qho chaw elliptical tau txais ntawm lub teeb pom kev zoo, thiab lub teeb pom kev tsis sib xws;
Txawm li cas los xij, nyob rau hauv rooj plaub ntawm ntau lub teeb pom kev zoo, cov teeb pom kev sib tshooj sib tshooj, uas tuaj yeem tsim cov teeb pom kev zoo txaus. Piv txwv li, ntau pua lub rotationally symmetrical floodlights feem ntau yog siv nyob rau hauv chaw ntau pob, thiab lawv tau ntsia rau siab yees nyob ib ncig ntawm lub chaw ntau pob kom tau siab illumination thiab siab uniformity teeb pom kev zoo.
2. Ob lub dav hlau symmetrical
Lub iso-kev siv nkhaus ntawm hom teeb pom kev zoo no muaj ob lub dav hlau symmetry. Feem ntau cov luminaires siv symmetrical cylindrical reflectors, thiab linear light sources yog ntsia raws lub cylindrical axis.
3. Lub dav hlau symmetrical
Muaj tsuas yog ib lub dav hlau symmetry rau qhov sib npaug siv nkhaus ntawm lub teeb. Lub luminaire txais ib qho asymmetric cylindrical reflector lossis ib lub cylindrical reflector ntxiv rau daim phiaj uas txwv lub teeb. Qhov zoo tshaj plaws yog qhov ntse txiav-tawm thaiv retracted lub teeb faib. Hom kev siv teeb pom kev zoo li no ib lub teeb tuaj yeem tau txais kev faib tawm ntau dua.
4. Asymmetric zoo
Qhov sib npaug sib npaug ntawm cov teeb no tsis muaj lub dav hlau sib luag. Nws tsuas yog siv ntau hom teeb pom kev zoo nrog cov teeb pom kev sib txawv sib txawv thiab cov teeb tshwj xeeb tsim raws li cov teeb pom kev tshwj xeeb ntawm qhov chaw siv.
