# Team:Cambridge/References/ProjectBioluminescence/LightLevel

(Difference between revisions)
 Revision as of 10:00, 28 July 2010 (view source)PM (Talk | contribs) (→Light Output)← Older edit Latest revision as of 12:18, 7 October 2010 (view source)Theos (Talk | contribs) (10 intermediate revisions not shown) Line 1: Line 1: - {{:Team:Cambridge/Templates/header}} + {{:Team:Cambridge/Templates/headerMinimalprototype}} - {{:Team:Cambridge/LumNavTemplate}} + {{:Team:Cambridge/Templates/RefBar}} - + {{:Team:Cambridge/Templates/headerbar|colour=#96d446|title=Bioluminescence: Light Output}} - =Light Output= + ==Increasing Light Emission== ==Increasing Light Emission== Line 16: Line 15: *The [http://en.wikipedia.org/wiki/Lumen_%28unit%29 lumen] is simply cd*sr. It is thus the analogue to the Watt *The [http://en.wikipedia.org/wiki/Lumen_%28unit%29 lumen] is simply cd*sr. It is thus the analogue to the Watt - *The [http://en.wikipedia.org/wiki/Lux Lux] measures how much light is incident on a suface, the Illuminance. It is related to irradiance (measured in Watts per m^2) but has been weighted again by the luminosity function. 1lux=1cd/m^2 + *The [http://en.wikipedia.org/wiki/Lux Lux] measures how much light is incident on a suface, the Illuminance. It is related to irradiance (measured in Watts per m^2) but has been weighted again by the luminosity function. 1lux= 1lm/m^2 = 1cd*1sr/m^2 *The luminance of an object is how much light is emitted from it. This is also measured in Lux, but it is different contextually. *The luminance of an object is how much light is emitted from it. This is also measured in Lux, but it is different contextually. Line 24: Line 23: !Illuminance!!Example !Illuminance!!Example |- |- - |10−5 lux ||Light from [[Sirius]], the brightest star in the night sky + |10−5 lux ||Light from Sirius, the brightest star in the night sky |- |- - |10−4 lux||Total [[star#Radiation|starlight]], overcast sky + |10−4 lux||Total starlight, overcast sky |- |- - |0.002 lux||Moonless clear night sky with [[airglow]] + |0.002 lux||Moonless clear night sky with airglow |- |- |0.01 lux||Quarter moon |0.01 lux||Quarter moon Line 34: Line 33: |0.27 lux||Full moon on a clear night |0.27 lux||Full moon on a clear night |- |- - |1 lux||Full moon overhead at tropical [[latitude]] + |1 lux||Full moon overhead at tropical latitude |- |- - |3.4 lux|| Dark limit of civil [[twilight]] under a clear sky + |3.4 lux|| Dark limit of civil twilight under a clear sky |- |- |50 lux||Family living room |50 lux||Family living room Line 46: Line 45: |320–500 lux || Office lighting |320–500 lux || Office lighting |- |- - |400 lux ||[[Sunrise]] or [[sunset]] on a clear day. + |400 lux ||Sunrise or sunset on a clear day. |- |- |1,000 lux||Overcast day |1,000 lux||Overcast day |- |- - |10,000–25,000 lux ||Full [[daylight]] (not direct sun) + |10,000–25,000 lux ||Full daylight (not direct sun) |- |- - |32,000–130,000 lux||Direct [[sunlight]] + |32,000–130,000 lux||Direct sunlight |} |} Line 59: Line 58: *A [http://cvision.ucsd.edu/lumindex.htm site] containing luminosity functions *A [http://cvision.ucsd.edu/lumindex.htm site] containing luminosity functions - *To summarise, the luminosity function allows one to convert between [[radiant]] energy and [[luminous]] (i.e., visible) energy. + *To summarise, the luminosity function allows one to convert between radiant energy and luminous (i.e., visible) energy. ==Difficulties== ==Difficulties== - ===Inclusion Bodies=== + ==Inclusion Bodies== * [http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TCW-4D5X6SM-4N-1&_cdi=5181&_user=1495569&_pii=0167779988900650&_orig=search&_coverDate=05%2F31%2F1988&_sk=999939994&view=c&wchp=dGLbVlb-zSkWb&md5=7b765deb78f66afdf695ef56af3219d2&ie=/sdarticle.pdf Inclusion Bodies in E. Coli] * [http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TCW-4D5X6SM-4N-1&_cdi=5181&_user=1495569&_pii=0167779988900650&_orig=search&_coverDate=05%2F31%2F1988&_sk=999939994&view=c&wchp=dGLbVlb-zSkWb&md5=7b765deb78f66afdf695ef56af3219d2&ie=/sdarticle.pdf Inclusion Bodies in E. Coli] Line 73: Line 72: * [http://www.cs.clemson.edu/~dhouse/courses/405/notes/splines.pdf Splines] * [http://www.cs.clemson.edu/~dhouse/courses/405/notes/splines.pdf Splines] - + ==Source Code== - {{:Team:Cambridge/Templates/footer}} + *[[Team:Cambridge/ProjectBioluminescence/LightLevel/SourceCode|Outputting lux]] + + + + {{:Team:Cambridge/Templates/footerMinimal}}