20pcs Optical grade PMMA Coated Collimating lens/Focusing Lens 7mm for Red Laser Diodes

20pcs Optical grade PMMA Coated Collimating lens/Focusing Lens 7mm for Red Laser Diodes Features: . Material: PMMA high quality coated optical lens Diameter: 7MM Surface Treatment: Plated multi-layer anti-reflection film Suitable for all kinds of red and blue-violet lasers Details: They are coated collimating lens especially for red laser diodes! 7mm Do not directly touch the surface of the lens by hand, do not let the lens be in direct contact with hard objects to avoid scratch,please use plastic forceps to take the lens! Package: 1 x 20pcs Optical grade PMMA Coated Collimating lens/Focusing Lens 7mm for Red Laser Diodes