51*16*0.5mm 640nm laser filter lens JGS1 quartz for laser beauty machine Optical equipment laser machine
Optical filter:
An optical device used to select the desired radiation band. One of the common
features of filters is that no filter can make the image of the celestial body brighter,
because all filters will absorb certain wavelengths, making the object darker
Description:
Name: Laser filter lens
Wavelength:640nm
Material:Quartz
Coating type: Double sides coated