Laser Optical Disk Set, 1 Each

The Laser Optical Disk Set by United Scientific is an introductory ray optics set with a laser ray box projecting one, three or five parallel beams, a vinyl degree-circle template, seven frosted-bottom acrylic elements and an adjustable plane/concave/convex mirror. It includes a wall-mount power supply, aluminum storage case and activity guide. Physics teachers use it for refraction, lens and mirror practicals; the laser is Class IIIa.