what is intensity of light source
| Discussion in 'All Categories' started by bhoop singh - Feb 5th, 2014 9:40 pm. | |
bhoop singh
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what is intensity of light source? |
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re: what is intensity of light source
by Dr.J S chowhan -
Feb 21st, 2014
11:19 am
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Dr.J S chowhan
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Dear Bhoop Singh Intensity of light source refers to the colour temperature at which light is produced. Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, manufacturing, astrophysics, horticulture, and other fields. The color temperature of a light source is the temperature of an ideal black body radiator that radiates light of comparable hue to that of the light source. In practice, color temperature is only meaningful for light sources that do in fact correspond somewhat closely to the radiation of some black body, i.e. those on a line from reddish/orange via yellow and more or less white to blueish white; it does not make sense to speak of the color temperature of e.g. a green or a purple light. Color temperature is conventionally stated in the unit of absolute temperature, the kelvin, having the unit symbol K. Color temperatures over 5,000K are called cool colors (bluish white), while lower color temperatures (2,700 |