why should we use canadabalsm to glued lenses

Asked by rohitlostlife | 29th Jan, 2020, 12:05: PM

Expert Answer:

Canada balsam has high optical quality and have refractive index same as that of crown glass i.e 1.55
Canad balsam becomes invisible when it becomes dry. Hence used to fuse the optical elements. 
Thus, canada balsam is used to glue two lenses. 
Apart from lenses, other applications of Canada balsam is seen in construction of Nicol prism, beam splitter, bonding two prisms etc. 

Answered by Shiwani Sawant | 29th Jan, 2020, 04:50: PM