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Barry_G
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Since there was some confusion previously where this post was mistaken for "homework" let me underline now *** THIS IS NOT HOMEWORK *** I've finished university 20 years ago, so this has nothing to do with any schoolwork or anything like that. I'm simply trying to understand some papers I'm reading.
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http://en.wikipedia.org/wiki/Luminance : luminance is measure of the luminous intensity per unit area... describes the amount of light that passes through or is emitted from a particular area, and falls within a given solid angle.
http://en.wikipedia.org/wiki/Illuminance : illuminance is the luminous flux incident on a surface per unit area.
Having three (equally bright) point light sources at some distance from an eye we want to know what is their collective luminance and illuminance as seen by that eye. More specifically:
a.) For luminance, what is the area of the three point sources considering emitted light?
b.) For luminance, what is the area of the three point sources considering light that passes through an eye?
c.) For luminance, what is the area of the three point sources considering the image of that light as seen by an eye?
d.) For illuminance, what is the area of the three point sources considering light that passes through an eye?
e.) For illuminance, what is the area of the three point sources considering the image of that light as seen by an eye?
f.) Is luminance of the three light sources proportionally the same as illuminance considering light that passes through an eye?
g.) Is luminance of the three light sources proportionally the same as illuminance considering the image of that light as seen by an eye?
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http://en.wikipedia.org/wiki/Luminance : luminance is measure of the luminous intensity per unit area... describes the amount of light that passes through or is emitted from a particular area, and falls within a given solid angle.
http://en.wikipedia.org/wiki/Illuminance : illuminance is the luminous flux incident on a surface per unit area.
Having three (equally bright) point light sources at some distance from an eye we want to know what is their collective luminance and illuminance as seen by that eye. More specifically:
a.) For luminance, what is the area of the three point sources considering emitted light?
b.) For luminance, what is the area of the three point sources considering light that passes through an eye?
c.) For luminance, what is the area of the three point sources considering the image of that light as seen by an eye?
d.) For illuminance, what is the area of the three point sources considering light that passes through an eye?
e.) For illuminance, what is the area of the three point sources considering the image of that light as seen by an eye?
f.) Is luminance of the three light sources proportionally the same as illuminance considering light that passes through an eye?
g.) Is luminance of the three light sources proportionally the same as illuminance considering the image of that light as seen by an eye?