Two Needle and Two Lens Holder With Four Stand

An optical bench made of well-painted square cross sectiol aluminium pipe with closed ends, fitted on two moulded supports with leveling screws. A scale graduated in millimeter fitted on the top of the optical bench. There are specially designed, easy sliding tilt proof riders with index mark for mounting various accessories, height of accessories adjustable with the help of knobs fitted in the riders. We can perform the experiments related to the fundamental of optics, such as image formation, reflection/refraction through the optical elements.