Concentric Arrays of Ring Shaped Apertures as Neutral Density Filters

Surendra Kumar

doi:10.14429/dsj.15.7278

Concentric Arrays of Ring Shaped Apertures as Neutral Density Filters

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.

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

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Issue

Vol 15 No 3

Section

Research Papers

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