Topic: Units of Light Brightness Measurement
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How to Measure the Brightness of Light
When you are taking pictures or deciding on the amount of lights to install in a room, you must know the amount of lighting. While many homeowners may be satisfied with a visual confirmation of the amount of light available, there is a more... Read More »
Source: http://www.ehow.com/how_8659793_measure-brightness-light.html
What is the unit for measuring brightness of light
lumen The unit of measuring the brightness - or to use the precise scientific terminology, illuminance - in SI system of measurement is lux or lumen per square meter. Illuminance is measured in foot candles. One foot-candle is equal to 10.7... Read More »
Source: http://www.enotes.com/science/q-and-a/what-unit-measuring-brightn...
How to Measure Bright Fluorescent Lights
Light output is measured by lumens, but the amount of light per square foot is measured by foot-candles and lux. One foot-candle is equal to 10.76 lux. Bright fluorescent lights often give off a high number of foot-candles, but you need a l... Read More »
Source: http://www.ehow.com/how_7472871_measure-bright-fluorescent-lights...
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Units of Light Brightness Measurement
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Answers to Other Common Questions
it is called an lightometer
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Source: http://wiki.answers.com/Q/What_is_the_instrument_to_measure_brigh...
By the angle, time and the position of the light source.
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Source: http://wiki.answers.com/Q/What_are_the_measurement_of_brightness_...
The frequency is measured in Hz (Hertz), the wavelength in m (meters), the energy in J (Joules) or eV (electronvolts), the intensity in W/m^2 (Watts per square meter), the speed in m/s (meters per second), etc...
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Source: http://wiki.answers.com/Q/What_unit_is_light_measured_in
You cannot 'measure' light. However, there is the light-year, a measurement of the distance light can travel in one year. there are many. Lumens, cadlepower, foot candles and candelas. There are probably a few more.
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Source: http://wiki.answers.com/Q/What_is_the_unit_for_measurement_of_lig...
Brightness is perceived, not measured. Brightness is what is perceived when lu...
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Source: http://www.chacha.com/question/what-is-the-unit-to-measure-bright...
In Lumens, not Watts. Lumens is a measure of the perceived power of light.
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Source: http://wiki.answers.com/Q/How_do_you_measure_the_brightness_of_a_...
