Concentric Arrays of Ring Shaped Apertures as Neutral Density Filters

Authors

  • Surendra Kumar Meteorological Office, Bombay Airport, Bombay

DOI:

https://doi.org/10.14429/dsj.15.7278

Keywords:

Curves, Neutral Filter

Abstract

Neutral density filters with flat transmission curves find extensive use in optical instruments, but really neutral filters i.e., with flat transmission are rather difficult to fabricate. A new method of making neutral filter has been discussed here from the oretical as well as practical aspect.

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Published

2014-05-16

How to Cite

Kumar, S. (2014). Concentric Arrays of Ring Shaped Apertures as Neutral Density Filters. Defence Science Journal, 15(3), 165–168. https://doi.org/10.14429/dsj.15.7278

Issue

Vol. 15 No. 3

Section

Research Papers

License

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