Specification
Focal Length: 4mm
Diameter: 6.0mm
Material: Glass
Features:
It is glass collimating lenses for lasers!
It can focus the laser beam at one dot!
It can be widely used for 400-700nm， especially good for Red lasers 600-700nm， will be more reflective from 400-532nm.High quality with clear and pure laser beam! Please keep the lens clean!!
Package:
1 x Laser Collimating Lens 4mm Focus 6mm Diameter Aspherical Glass Lens