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A curved light guide with partial-reflective segmented mirror array to out-couple the light is used by tooz technologies GmbH. [ 1 ] "Clear-Vu" reflective waveguide – thin monolithic molded plastic w/ surface reflectors and conventional coatings developed by Optinvent and used in their ORA product.
A blue color with RGB values of 0 0 255 therefore appears bright. A red area (255 0 0) or a green surface (0 255 0) appears black. Below - or in some test images above - the color bars are reference areas, that serve as an indication for a proper adjustment. Because the reference areas have the same brightness value as the colored bars.
The XYZ primaries will have XYZ coordinates [1,0,0], [0,1,0], and [0,0,1] in XYZ space, so the columns of the inverse matrix above specify the XYZ primaries ( Cr, Cg and Cb) in RGB space. Dividing each column by its sum will give the coordinates of the XYZ primaries in rgb space which yields: Cr = {1.27496, -0.27777, 0.00280576}
On June 14, 2007, Eastman Kodak announced an alternative to the Bayer filter: a colour-filter pattern that increases the sensitivity to light of the image sensor in a digital camera by using some panchromatic cells that are sensitive to all wavelengths of visible light and collect a larger amount of light striking the sensor. [8]
For simplicity, consider the example of a monochrome CRT. In this case, when a video signal of 0.5 (representing a mid-gray) is fed to the display, the intensity or brightness is about 0.22 (resulting in a mid-gray, about 22% the intensity of white). Pure black (0.0) and pure white (1.0) are the only shades that are unaffected by gamma.