Accurate Fan Angle: 5, 10, 15, 20, 30, 45, 53, 60, 70, 75, 85, 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°, 20°, 30°, 45°, 53°, 60°, 70°, 75°, 85°, 90° and 96°. The optical line generator lens is optimized ...