A Simple Microspectroscopic Ocular
THE MICROSCOPE
1966, Volume 15:4, pp. 143–144
AUTHOR
John Gustav Delly
ABSTRACT
A simple microspectroscopic ocular suitable for most qualitative work can be assembled at a trifling cost. This has become possible with the availability of inexpensive, acetate plastic diffraction grating replicas having about 13,400 lines per inch. A 10× ocular with focusing eye lens, of the type used with micrometer discs and other reticles, is most conveniently modified.