| definition |
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Leaf Optical: Reflected and transmitted radiant energy can be
measured for individual or a group of canopy elements
(e.g. leaves, needles, branches, stems, cones, etc.) The Se590
is attached to a LI-COR Integrating Sphere. The integrating
sphere has a port for a reference standard and a port for the
sample to be measured. The sphere has its own lights source
that can be placed in three other ports to create reflected,
reference and transmitted measurements. Techniques have been
developed for measuring samples large enough to completely cover
the light source's beam area and for samples that are smaller
than the beam area.
[Source: University of Nebraska-Lincoln]
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