Cov iav F-Theta feem ntau siv ua ke nrog cov iav galvanometer scanning hauv laser engraving, txiav, thiab cim cov kab ke. Feem ntau qhov F-Theta distortion ntawm lub lens raug khaws cia tsawg dua 1% kom nws muaj peev xwm tsim tau qhov chaw meej hauv thaj chaw tiaj tus ntawm lub dav hlau duab.
Wavelength tau tsom mus rau kev muab cov khoom siv kho qhov muag siab rau 20 xyoo