Abstract

A method has been developed which substantially reduces the reflection of viewing screens. The method consists of depositing a quarterwave layer of magnesium fluoride on a slightly roughened surface in such a way that the principle of an identical thin film is respected (conservation of interference). The remaining reflection from the front of the viewing screen is reduced to <0.4% over the whole visible spectrum. The reflection is tint-free over the complete viewing angle; light transmission and contrast are conserved; resolving power is only minimally affected. The influence which the roughening of a transparent surface has on the transmission and reflection of light is described in terms of scalar diffraction theory.

© 1985 Optical Society of America

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