Consist of following items.
NODAL UPRIGHT: Consists of a combination of Single & double lens holder on a mounting 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 are read by individual pointer on a mm scale. The whole mount can rotate along its vertical axis and the degree of rotation read on a circular scale with 3” steel C.P. stem.
MIRROR: Plain, inclinable with 3” steel C.P. stand.
MICROMETER EYEPIECE: Rams den Eyepiece, 10*, is carried on a slider which moves along a micrometer screw. Perfectly made.
OPTICAL SLIT: with fine machined cross slit, one surface white & the other optical black, with 3” steel C.P. stem.
LAMP HOUSE: An electric bulb is encased in a metal case with cord & pin. It works on 220 Volt.
Complete with optical bench of C.P. rods 1&1/2 METER LONG AND nodal Slide Assembly as per Cat. No. 236.
Complete with optical bench of brass pipes (inside shafting) 1&1/2 meter long and Nodal Slide Assembly as per Cat. No.236.
Complete with optical bench of Stainless Steel rods 1&1/2 meter long and Nodal Slide Assembly as per Cat. No. 236.
The unit is encased in a special aluminium case with standard stem of 9mm dia. It is fitted with high class optics. Light from two different sources falls on either side of a uniform opaque white screen. This light is reflected by side reflectors (Special prisms) and passes through the Lummer Brodhum cube. The field of view can be seen through a telescope and the light intensities are compared directly. The photometer is mounted in a swivel bracket for proper adjustment with two-nose lamp house & electric bulb is in a metal cased with cord & pin finished optical block.