The image below is a single 20-second exposure taken with a red-green-blue filter.

下图是用红-绿-蓝滤光片拍摄的单一20秒曝光照片。

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Most commercial digital cameras use color filter arrays to sample the red, green, and blue colors according to a specific pattern.

大多数的数码相机都是根据特定的模板而使用颜色滤波阵列来对红、绿、蓝的颜色进行采样。

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Most commercial digital cameras use a single CCD or CMOS sensor having a color filter array on its surface to get red , green, or blue samples.

大部分消耗型数字相机都采用单片CCD或CMOS图像传感器，并通过一个彩色滤波阵列来实现，因此在每个像素上只能采集红、绿或蓝一种颜色分量。

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Philips' solution is to combine two blue and one red element, but use a green phosphor filter to convert one of the blue LEDs to green.

ENGADGET

The first permanent colour photograph was taken by Thomas Sutton who was working with Clerk Maxwell and is a composite of three black and white pictures, each one taken through a red, green or blue filter.

BBC: Pioneering colour photography

Each disc is covered in a transparent plastic coating (either blue, green, yellow or red) which lets daylight filter through.

WSJ: Daniel Buren's Bright Periphery | 'Excentrique(s) Travail In Situ' at the Grand Palais in Paris