A collimating lens is an instrument that converts light from each point in the aperture column into a parallel column of collimating light
Collimator Lens EFL4.05mm, made by optical glass aspheric lens.
The length can be6.5mm,8mm,10mm,14mm or customized. the Diameter can be customized. M9*0.5 M10*0.5
When you need other wavelength, please contact us freely.