Ilensi yokuvikela umshini wokusika i-laser ingavikela isifunda sangaphakathi se-optical kanye nezingxenye eziyinhloko zekhanda lokusika le-laser. Isizathu se-lens yokuzivikela eshisiwe yomshini wokusika i-laser ukugcinwa okungalungile futhi isisombululo ukukhetha i-cooler yezimboni efanelekile yokushisa ukushisa kwemishini yakho ye-laser.