Abstract :
This paper surveys the problem of matching colour television monitors and the relative merits of optical or electronic aids. An optical design for assessing the normalizing white of a colour monitor is then discussed at length, and comments are made in detail on the alternative solutions at each stage of the design. It is concluded that a Lummer-Brodhun matching field, together with a tungsten lamp and glass filter combination for the reference D65, form an economical solution to the problem of a standard reference illuminant. Design flexibility allows the instrument to be used for other applications such as checking film review screens, and shadow mask tube phosphors.
