This Optical Bench is supported on 2 rugged cast iron supports. The positions of the uprights is noted on a stainless steel square rod. An adjustable Sharp Slit is provided on the 1st upright. The second upright carries the Bi-Prism on a special mount and can be easily replaced by any other Bi-Prism.
Our Newton’s Rings Apparatus is compact in design; consists of a heavy cast iron base with 2 levelling screws. This base carries a 4″x4″ steel box in which the sodium lamp is suspended from a rectangular aluminium top...
Our L.B Photometer is best in its class and precisely developed. We use custom made right angled glass prisms whose opposite sides are made convex by grinding and then pressing against eachother in a special brass enclosure known as the Brodhun Cube.
Our instruments are highly efficient when it comes to performing experiments. We have designed our instruments in such a way that the students feel comfortable and highly motivated while working on our instruments.
Robust and Strongly built
The material used for making our instruments is best in class. We employ high quality optics and superior machining for better accuracy and stability throughout the lifetime of our instruments.
Testing and checking at every phase of the development process makes our instruments highly precision and accurate. Each and every instrument has to pass through various tests during and after development hence making it perfect and accurate.
We have been making scientific instruments for physics labs since 1962. Manufacturing was started by Late Sh.Mohinder Singh. The instruments made by him were Sextants, Barometers, Earth Inductors, Dip Circles etc. Now Sigma Instruments Co. is being run by Mr. Harbhajan Singh(MSc Physics). His endeavor has always been to design and improve the instruments, so that their operation becomes easy, give accurate results and are students friendly. We use right material and components for all our instruments. Our instruments are quality checked and tested thoroughly to ensure their accuracy and proper functionality. Our instruments are being used in almost all physics labs throughout India marketed by different dealers. Our instruments carry special features which make them different from the routine type of instruments and are always the first choice of quality seekers!!