USAGE

Nodal Slide Assembly Setup is useful for accurate measurement of focal length of convex lens and for combination of convex lenses. It consists of incandescent light source, cross slit, movable circular mirror and nodal slide assembly.

Scope of Learning

• Determination of the focal length of the converging lens
• Determination of the focal length of the combination of convergent lenses 
• Verification of the relation: 1/F = 1/f1 + 1/f2 -d/f1f2

Product Features

• A comprehensive and self contained optics system
• A complete system with a Light Source, Bench and all other accessories
• Sliding uprights
• 40W incandescent lamp Light Source
• Online product tutorial

CONSISTS

Mirror                 Plain, inclinable with 3” steel  stand

Nodal Upright consists combination of single & double lens holders on a mount rotating along the vertical axis, adjustable in height & can either be                                 moved together by rack & pinion or relative to each other by sliding. These motions can be read by individual pointers on a mm scale.

Optical Slit         cross slit, one surface white & the other clack, with 3” steel stem.

Lamp house         en electric bulb 60 W 220V AC is encased in a metal case with cord & shoe.

Optical Bench 

RODS:             It consists of  two metallic rods (one rod is engraved in mms) overall length 170 cms X 18 mm thick , Scale length 150 cms. 

FEET             supported by heavy cast iron feet of 8 inch x 6 inch

RIDERS             provided with 4 metal riders -2 of these provided with fine cross motion & 2 w/o motion. All the 4 sliders are fitted with hollow pillars .one                             screw with 4 inch x 14 mm metal painted strip for tightening rider is provide on each rider. All the riders are half shapered

LENS HOLDER: U shape Die cast Iron Lens Holder provided with a groove for holding  lens, with upper part movable - 2 nos.  

OPTICAL PINS: M.S. chromed 12 mm half shapered  Needles - 2 nos