Laser Optical Demonstration Instrument .
Main unit
Including laser, beam expander, beam splitter, whiteboard, scale disk, holder, etc.
Accessories
1. Concave/convex cylindrical mirror
2. Plano-convex cylindrical lens
3. Polarizer holder
4. Polarizer
5. Newton's ring
6. Periscope
7. Equilateral prism
8. Plane parallel plate
9. Air wedge
10. Minor
11. Galilean telescope
12. Semi-cylindrical lens
13. Plano-concave cylindrical lens
14. Diffraction plate
15. Analyzer
16. Double mirror
17. Right angle prism
18. Biconvex cylindrical lens
19. Diffuse reflector
20. Plastic fiber
21. Beam expander lens
22. Lens holder