... , 90, 96 degree Excellent Uniformity AR coating is available The Powell Lens is one kind of Aspherical lens, which can transform ... laser beam into a straight laser line. At present our Powell Lens are available in fan angles of 5°, 10°, 15 ... , both side; N: without coating GGG: Coating WavelegnthAR coating @ wavelength Powell Lens (Laser Line Generator Lens)