Nodal Slide Assembly
Consists of the following items
a) Nodal Upright : Consists of a combination of Single & double lens
holder on a mount rotating along the vertical axis. The combination lens holders are adjustable in height, and the single & twin lens holders 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.
b) Mirror : Plain, inclinable with 3” steel C.P.
c) Optical Slit : With fine machined cross slit, one surface white & the other optical black, with 3” steel C.P. Stem.
d) Lamp House : an electric bulb is encased in a metal case with cord & pin. It works on 220V AC