correlated color temperature वाक्य
उदाहरण वाक्य
मोबाइल
- Daylight has a spectrum similar to that of a black body with a correlated color temperature of 6, 500 K ( D65 viewing standard ) or 5, 500 K ( daylight-balanced photographic film standard ).
- The inverse calculation, from chromaticity co-ordinates ( " x ", " y " ) on or near the Planckian locus to correlated color temperature, is discussed in Color temperature # Approximation.
- D . B . Judd, D . L . MacAdam, G . Wyszecki, Spectral distribution of typical daylight as a function of correlated color temperature, Journal of the Optical Society of America 54 ( 1964 ) 1031-1040.
- CIE 1960 UCS . The isotherms are perpendicular to the Planckian locus, and are drawn to indicate the maximum distance from the locus that the CIE considers the correlated color temperature to be meaningful : \ Delta uv = \ pm 0.05 ]]
- CIE 1960 UCS . The isotherms are perpendicular to the Planckian locus, and are drawn to indicate the maximum distance from the locus that the CIE considers the correlated color temperature to be meaningful : \ Delta _ { uv } = \ pm 0.05 ]]
- Judd " et al . " simply tabulated the values of certain chromaticity coordinates, corresponding to commonly used correlated color temperatures, such as 5500 K, 6500 K, and 7500 K . For other color temperatures, one could consult figures made by Kelly.
- The manufacturer of each selected luminaire will be required to commission third-party testing, each being tested for : total luminous flux, luminaire efficacy, correlated color temperature, color rendering index, steady state package / module / array temperature, and maximum power supply case.
- The illuminance of a source is the dominating factor for deciding as to whether or not a source is pleasing or comfortable, as viewers participating in this experiment evaluated a range of correlated color temperatures and illuminance levels, yet their impressions remained generally unchanged as correlated color temperature changed.
- The illuminance of a source is the dominating factor for deciding as to whether or not a source is pleasing or comfortable, as viewers participating in this experiment evaluated a range of correlated color temperatures and illuminance levels, yet their impressions remained generally unchanged as correlated color temperature changed.
- Judd, D . B ., MacAdam, D . L ., Wyszecki, G . W . Spectral distribution of typical daylight as a function of correlated color temperature, " Journal of the Optical Society of America ", 54, 1964, 1031 1036.
- Since D65 represents white light, its co-ordinates are also a white point, corresponding to a correlated color temperature of 6504 K . Rec . 709, used in HDTV systems, truncates the CIE 1931 coordinates to x = 0.3127, y = 0.329.
- Together with D . L . MacAdam and G . Wyszecki he used in 1964 the method of principal component analysis to demonstrate that natural daylights are largely composed of three components from which daylights at any correlated color temperature can be defined ( CIE method of calculating D-illuminants ) . ( 4)
- To deal with the problem of having to compare light sources of different correlated color temperatures ( CCT ), the CIE settled on using a reference black body with the same color temperature for lamps with a CCT of under 5000 K, or a phase of CIE standard illuminant D ( daylight ) otherwise.
- Good quality consumer CFLs use three or four phosphors to achieve a " white " light with a color rendering index ( CRI ) of about 80, where the maximum 100 represents the appearance of colors under daylight or other sources of black-body radiation such as an incandescent light bulb ( depending on the correlated color temperature ).
- CRI is calculated from the differences in the chromaticities of eight CIE standard color samples ( CIE 1995 ) when illuminated by a light source and by a reference illuminant of the same correlated color temperature ( CCT ), commonly measured in Kelvins, indicating the light color produced by a radiating black body at a certain temperature; the smaller the average difference in chromaticities, the higher the CRI . A CRI of 100 represents the maximum value.
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