Features :
! Measuring range of refractive
index nD1.300 to nD1.700.
! A thermometer is fitted on the
double prism.
! A sugar scale with 0-95% reading
is provided in the instrument.
! Standard glass plate having 1.509
refractive index alongwith
c o n t a c t s o l u t i o n f o r
standardization is also provided
with the instrument.
Features :
! A simple type, useful for studying the general nature of spectrum and
for classroom demonstration of emission and absorbtion of spectra
obtained from any visible light source. The instrument is made on the
principal of dispersion without deviation of light. Dispersion is
increased by multi element prism of crown and flint glass.
Features :
! C.I casted heavy base with
chrome plated shaft. The
Telescope is hinged on a
carriage with up and down
motion by knurled head screw.
Telescope has rack nad pinion
focusing system and is focusable
from 1mtr. to infinity distance.
! An objective lens dia 25mm with
focal length 178mm and eyepiece
10x with cross line
graticule is provided with
telescope.
co-axial movement of base with joy stick, microscope having objectives 1x and 1.6x (paired), eye-pieces 10x and 16x (paired). The slit having width adjustment 0- 12mm, length adjustment 0- 12mm, with halogen lamp 12V- 50W. operates on 220-240V AC 50Hz.
coincidence focusing system, 15x eyepieces , one position instrument,
measure both meridians without changing optical system, the achromatic
optical systems to precise measurement of the corneal radius curvature and accuirate measurement of radius curvature of contact lens.
