12-point circle with center point bullseye positioning laser module red-green-blue laser module 4.77° 9.95° Specifications: Wavelength: 650nm red laser/520nm green
red green and blue laser module research experiments 1.432°-36° laser module solid circle homogenization effect Description 1.432°-36° solid circle homogenization
red green blue laser module 33.18° 5 concentric circles adjustable laser line width Specifications: Wavelength: 650nm red laser/520nm green laser/450nm