* A typical radiant intensity
of 650 mW/sr at a DC current of 1 A (4232).
However, this necessitates an accurate prediction of the radiant intensity field.
The first term represents the spectral emission from the surface, while the second term represents the reflected radiant intensity. Note that for a room with a glazing system, the boundary conditions need to be modified to incorporate the transmission through the window.
(1997), considers discrete directions and nodes and calculates the radiant intensity at each point and direction within the enclosure.
While standard IR emitters typically offer drive currents to 100 mA, the low thermal resistivity of the VSLB9530S allows continuous drive currents up to 150 mA, which pushes the achievable radiant intensity
to 60 mW/sr at 150 mA.
This device produces a radiant intensity
(850 nm) typically of 1,000 mW/sr at 1,000 mA.
The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 X [10.sup.12] hertz and that has a radiant intensity in that direction of 1/683 watts per steradian.
20 is related to the radiant intensity of the beam per milliamperes of beam current.
The instrument is suitable for luminous or radiant intensity
measurements, tunnel brightness, total luminous or radiant flux measurements, device brightness, signal brightness, and equipment and device illumination measurements.
The company's processing technique accommodates fabrication of pixels 25 microns square with radiant intensity
of 25 [micro]W to 75 [micro]W per steradian at 3 mA depending on wavelength.