Optical Bench, Angle Profile

For exploring the fundamentals of optics, such as image formations, reflection / refraction through optical elements. Comprises a lightweight alloy extrusion having angular profile, about 1m long, with a scale on one side graduated in millimeters. Complete kit includes – 1 Light source, 3.5V with parabolic reflector; 5 multipurpose holders – 40mm diameter diaphragm holder, screen holder; 4 convex lenses, diameter 40mm and focal lengths 25, 12.5, 10 and 5cm; 1 concave lens, diameter 40mm and focal length 10cm; 5 metal clips for mounting lenses in the multipurpose holders; 1 diaphragm with 3 holes of diameters 3, 5 and 8mm; and one object letter. Specially designed multipurpose holders of light-weight, moulded plastic have bottom to sit exactly on top of the optical bench with free sliding motion and index mark for reading the position.