colour filter


Also found in: Encyclopedia, Wikipedia.
Related to colour filter: Bayer filter

colour filter

or

color filter

n
(Photography) photog a thin layer of coloured gelatine, glass, etc, that transmits light of certain colours or wavelengths but considerably reduces the transmission of others
References in periodicals archive ?
Opsec Security Group, disclosed a novel structured colour filter device in US20140103634A1; the device includes a substrate having a surface with a step function surface profile having two or more discrete levels.
In this paper, a hidden message is virtually 'invisible' when viewed with the naked eye but becomes visible when viewed through an appropriate colour filter (see Figure 1).
The company launched its TrueImage [TM] colour reflection holograms two years ago (see HN Vol 13 No 2) and is also supplying a holographic colour filter for JVC's projection television (see inset).
The Optical Filter Shop stocks a variety of band pass filters, colour filters, UV - IR filters and ITO, all of which can be selected by the shopper.
A total of 400 WE-EF fittings, with all their accessories such as ground-spikes, lenses, colour filters and connectors, were supplied and installed.
Special colour filters placed over pages can help children with reading difficulties read 25 per cent faster.
protective screens and colour filters, and with an integrated anti-twist device can be adjusted in 5 degree increments.