Following experiments can be performed on this optical bench set: 1.Image formation by a convex lens and measure the focal length of a convex lens 2.Dispersion 3.Imagine formation by a pinhole 4.The model of Kepler telescope 5.The model of Galilean telescope 6.The model of microscope 7.Double slits interference with different slit width 8.Diffraction formed by single slit with different slit width,diffraction gratings,apertures with different shape and size.a string,an edge and a small circular screen (poisson bright spot) 9.Shadow to simulate the formation of eclipse and lunar eclipse 10.Image formation by a concave mirror and a convex mirror 11.Polarisation produced by a polarizer and detected by an analyser Following optical ray diagrams could be shown on this board: 1.Reflection from a plan mirror 2.Reflection from a concave mirror 3.Reflection from a convex mirror 4.Refraction by a prism 5.Refraction by a concave lens 6.Refraction by a convex lens 7.Refraction though a brick and a semi-cylindrical lens 8.Total internal refraction ModelJFG-GJZ-ZHthe specification of guide-way500mm×54mm×27 mmthe total length of guide-way100cmthe specification of white board500mm×350 mmwork temperature(-10~40)°C ;(86~106)Kpatechnical specifications (laser lamp-house)laser output power≤5mwlaser wavelength600~670nmlaser beam divergent angle≤20mradpower2pieces of 5#batteriestechnical specifications (white light lamp-house)output power≤35wpowerDC 12v ; 35w