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Illuminance is another term for luminous-flux density which defines the intensity of the luminous flux arriving at a surface, measured in lumens per square metre, which is given the special name 'lux'.
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What is the illuminance on a table that is 5 m away from a source of light that has a luminous flux of 1275 lm?
51 lux
Why does the moon apper brighter at night?
The moon appears brighter at night than during the daytime because the level of outdoor illuminance is less than that of the moon.
What is luminosity and how is it measured in the case of the Sun?
Luminosity is the energy of all types is radiated by an object in all directions per sec. So it measured in ergs per sec or Joule per sec (= Watt). Luminosity can be measured in more than one unit. - Candela per square metre - Stilb - Apostilb - Lambert - Foot-lambert Each one is explained in the related links below. Previous answer Candela per square meter or for illuminance.
What are the release dates for Illuminance - 2011?
Illuminance - 2011 was released on: USA: 19 May 2011 (limited)
What is the illuminance required in reading room in terms of LUX?
the reading room required illuminance around 500.
What actors and actresses appeared in Illuminance - 2011?
The cast of Illuminance - 2011 includes: Oth Khotsimeuang as Noah
What is the difference between daylight fluorescent and cool white fluorescent?
Daylight Fluorescent lamps have bluish-white illuminance, whereas coolwhite fluorescent lamps have yellowish-white illuminance.
How do you calculate daylight factor in lighting design?
The most commonly used metric for measuring daylight in a building is called the "daylight factor"-expressed as a percent of available exterior daylight.Daylight factor is defined as a ratio of interior illuminance at a horizontal point in a building to the sun-shaded exterior illuminance on a horizontal surface under a fully overcast sky (a ratio of outside illuminance over inside illuminance).The higher the daylight factor, the more natural light that is available in the room.
If a 72-candela light source is located at a distance of 3 meters from a surface the illuminance on the surface is?
The illuminance on the surface can be calculated bu using the formula: E=I/s2. E stands for the illuminance on the surface (in lux), I stands for theintensity of the light from the source (in candelas), and s stands for the distance from the light source to the surface (in meters). So, the answer is: 8 lux
How much do revlon creme illuminance shadows cost?
Around $4 in the US.
'what is the SI UNIT for sunshine'?
Illuminance is measured in lumens (lm) in SI units.
What happens to the illuminance when you move away from the light source?
The intensity decreases.
According to the information in your study uint what locations requires the highest illuminance?
A study area.
How do you spell alouminse?
Phonetically, this could be "elements" (parts, or chemical elements), or possibly "illuminance" (light).
How many footcandle is 1 candela per meter square?
Foot Candela is the measuring unit for illuminance while candela/meter squared is a measuring unit for luminance,which makes conversion not possible. conversion can be done for units of the same quantity, for example, illuminance units : ft candela = 10.764 lux. To know the difference between luminance & illuminance, you can take a look at http://www.tpub.com/content/gsacriteria/gsa_courtroom_lighting/gsa_courtroom_lighting0012.htm
