For direct reading for Visible wavelength of Spectrum, fluorescence spectra, Band Spectra , Zeeman effect and determination 

Analysis.* Collimator / Telescope Prism Housing*

A) Telescope tube:  2” with Ramsden type Eyepiece Mag. 10x for focussing of spectral lines.

B) Collimator tube 50 mm dia provided with Rack and Pinion arrangement & slit (circular type).

C) Corrected achromatic doublet are fitted in the lens holders of collimator and telescope tube.

D) BASE : Collimetor & telescope tubes are fitted in cast iron plate which in turn are mounted on a iron base.

E) Rotatable Calibrated wave length drum : Calibration for visible region i.e from 4000Aº -7000Aº is attatched with prism assembly

F) C.D.S. PRISM : Optical glass reflective Index 1.66/1.78 Achromatic high resolution Lenses in Telescope.

G) Prism is fitted in the Machined cast iron Prism table.