found: Work cat.: Yildirim, A. Processor control for neutral density filter controller, 2003:leaf iii, abstr. (Although there are a variety of different neutral density (ND) filters available commercially, the filter developed during the present study simplified the experimental setup ....)
found: McGraw-Hill dictionary of scientific and technical terms, 2003(neutral-density filter; an optical filter that reduces the intensity of light without appreciably changing its color; also known as gray filter; neutral filter)
found: Melles Griot glossary, via WWW, Dec. 3, 2004(Neutral density filter - Neutral-density filters attenuate, split, or combine beams in a wide range of irradiance ratios with no significant dependence on wavelength. These filters find wide application for precise attenuation or control of light)
found: IUPAC compendium of chemical terminology, via WWW, Dec. 3, 2004(Attenuance filter; an optical device (filter) which reduces the radiant power of a light beam by a constant factor over all wavelengths within its operating range. Sometimes called attenuator or neutral density filter)
found: Chambers dictionary of science and technology, 1999:(neutral density filter ... one which attenuates all colours uniformly so that the relative spectral distribution of the energy of the transmitted light has been unaltered)
