Specifications:

Laser Optical Demonstration Instrument is developed as a low-cost solution to lower class optical education at universities and colleges. It provides a complete set of optical and mechanical components as well as light source.

A He-Ne laser beam is emitted from a built-in laser tube, diverted by a mirror and expanded by a cylindrical lens. A beam splitter assembly then creates three equally intense beams. These beams' positions and directions can be adjustable independently and beam tracks are presented on a white board. A rotational disk with angular scales is located at the center of the board. There is a hole in the disk center for mounting various optical components. By inserting proper optical components into the optical path, numerous geometric- and physical-optics experiments can be demonstrated (covering ray optics, imaging optics, optical interference, diffraction and polarization)

A list of 61 experimental examples can be conducted as follows:

1. Rectilinear propagation of light rays

2. Independent propagation of light rays

3. Law of light reflection

4. Beam expansion by a convex lens

5. Beam expansion by a cylindrical lens

6. Beam splitting by a beam splitter

7. Beam splitting (diffraction) by a grating

8. Light reflection at a boundary of two media

9. Real image formed by convergent rays

10. Virtual image formed by divergent rays

11. Beam deflection by plane mirror

12. Imaging properties of a double mirror

13. Diffuse reflection of light

14. Law of light refraction 

15. Total internal reflection of light

16. Applications of total internal reflection

17. Principle of periscope

18. Minimum deviation angle of prism

19. Displacement of rays through a plane plate

20. Propagation of light through optical fiber

21. Convergence of light by concave mirror

22. Self-tracing of light by concave mirror

23. Imaging of concave mirror (object distance >2f') 

24. Imaging of concave mirror (object distance f'~2f')

25. Imaging of concave mirror (object at focal plane) 

26. Imaging of concave mirror (distance < f')

27. Divergence of light by convex mirror

28. Self-tracing of light by convex mirror

29. Imaging of convex mirror

30. Rays passing nodal point of convex lens

31. Demonstrating focal point in object space 

32. Light focusing by a convex lens

33. Principle of camera

34. Principle of projector

35. Principle of collimator

36. Principle of magnifier

37. Imaging of convex lens

38. Imaging of convex lens

39. Imaging of convex lens

40. Imaging of convex lens

41. Imaging of convex lens

42. Imaging of convex lens

43. Divergence of light by concave lens

44. Imaging of prism

45. Principle of Galilean telescope 

46. Imaging of Galilean telescope

47. Principle of nearsighted vision correction

48. Principle of farsighted vision correction

49. Interference of Newton's rings

50. Interference by air wedge

51. Young's double-slit interference

52. Polarization of light

53. Diffraction by single-slit

54. Diffraction by double-slit

55. Diffraction by triple-slit

56. Diffraction by quadruple-slit

57. Diffraction by grating

58. Diffraction by circular aperture

59. Diffraction by square aperture

60. Diffraction by rectangular aperture

61. Diffraction by triangular aperture