base density

base density

[′bās ′den·səd·ē]
(optics)
The value of the inherent optical transmission density of a film base; does not include any contribution from the emulsion layer.
References in periodicals archive ?
5Mm Thick Tapered Edge Along The Length Having Base Density 800Kgs/M3 And Nrc Value Between 0.
Since the late Miocene, a gradual reduction in trichome base density has occurred in this complex.