Optical Rail Model Bc-4

In optical experiments, it is often necessary to translate components along an axis, e.g. when focusing a lens. The traditional solution is 
the optical bench consisting of a heavy cast-iron section (of Cat No. 1210 & 1211) of immense rigidity, carrying heavy, cast saddles. 
Such systems are still relevant for special single-axis work or (upto +2 level), but are relatively useless for multiple axis assemblies, 
especially when these axis intersect.  and choice of different types of rail carriers. Double Rod Optical Benches are also useless when 
setting-up small scale optics which are characteristic of most electro-optic instruments, as bench systems do not permit close spacing 
of optics. Thus the optical bench has largely given way to smaller scale optical rails which can provide intersecting axes can permit 
close spacing of components.    
Our optical rails are triangular shaped aluminum extrusion. They are available in various sizes 
0.5m,1m, 1.5m & 2m
structure & standard in weight. linear scale with one mm graduation are provided on both sides for quick position reference.