Helium neon laser light
A 2 milliwatt laser, mountable on optical bench, with in built power supply workable on 220v ac, 50hz. Design for continues working. Highly rugged mechnical setup. Up-down motion for beam.
1. Low line diffrection grating for laser wave length
2. Young's double slit
3. Hand micrometer
4. Grating stand
5. Laser filter
6. Set of 13 (demo kit)
single taper slit, holes a,b,c,d, grey filter, multiple slit, circular opaque, spot, mesh, multiple slit 5 grid pattern.