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Full color image along with its R, G, and B components Additive color mixing demonstrated with CD covers used as beam splitters A diagram demonstrating additive color with RGB. The RGB color model is an additive color model [1] in which the red, green and blue primary colors of light are added together in various ways to reproduce a broad array ...
Generally, longer wavelengths (red) undergo a smaller deviation than shorter wavelengths (blue). The dispersion of white light into colors by a prism led Sir Isaac Newton to conclude that white light consisted of a mixture of different colors. Triangular prisms are the most common type of dispersive prism.
Green is a color associated with the primary religion of Islam – and therefore also a color representative of the caliphates. [4] [5] Green is also identified as the color of the Fatimid Caliphate by some modern sources, [3] [6] despite their dynastic color having been white. [7] [8] [9] Finally, red was the Hashemite dynastic color.
Ocean color is the branch of ocean optics that specifically studies the color of the water and information that can be gained from looking at variations in color. The color of the ocean , while mainly blue, actually varies from blue to green or even yellow, brown or red in some cases. [ 1 ]
Sepia ink was commonly used for writing in Greco-Roman civilization.It remained in common use as an artist's drawing material until the 19th century. [2] Grisaille is a painting technique developed in the 14th century in which a painting is rendered solely in tones of gray, sepia, or dark green. [4]
In Malaysia, yellow was formerly used by Bersih (The Coalition for Clean and Fair Elections). In the Philippines, yellow is commonly associated with the centre to centre-left Liberal Party although other colours such as red and blue are used. In South Korea, yellow associated with historically Uri Party and former President Roh Moo-hyun supporters.
In some lenses, the curved surfaces are replaced with flat surfaces, with a different angle in each section. Such a lens can be regarded as an array of prisms arranged in a circular fashion with steeper prisms on the edges and a flat or slightly convex center. In the first (and largest) Fresnel lenses, each section was actually a separate prism.
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