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THE TRANSMISSION OF COMBINED NEUTRAL DENSITY FILTERS
Author(s) -
POFF KENNETH L.,
BURKART UHLAND,
HAUDER DONATP.,
VIERSTRA RICHARD D.
Publication year - 1984
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1984.tb03415.x
Subject(s) - reflection (computer programming) , transmission (telecommunications) , stacking , absorption (acoustics) , materials science , optics , computer science , physics , telecommunications , nuclear magnetic resonance , programming language
— Stacking of neutral density filters to decrease transmission causes various problems, depending on the type of filters used. Combining reflective filters results in a higher total transmission than the product of the individual transmissions suggests. The error increases dramatically with increasing reflection of the filters due to multiple reflection between the filters. Equations are presented which allow the calculation of combinations of reflective filters and those combining both reflection and absorption.