This standard prescribes the general technical requirements and the methods of test for the following types of finished basic optical com-ponents used in optical instruments or optical systems:
a) Lenses
b) Prisms
c) Mirrors
d) Graticules or diaphragms
e) Plates, parallel and prismatic
f) Optical filters
1.1.1 For the special requirements governed by the individual assembly, location or function of the component in a particular system or instrument, reference should be made to the relevant specifica-tion for the instrument or svstem, as the case may be.
IS 988-1959 history
1959IS 988-1959 General requirements for optical components