In parallel, the emitted luminous intensities were measured, using a traditional goniophotometer.
The effect was verified in devices whose emitted luminous intensities were not so different from those of "conventional" devices, considering the latter as uniformly illuminated (whether they use LEDs or another luminous source).
For example, since the plasma plume itself emits luminous radiation, the interplay between the characteristics of the luminous plasma plume and fluid-dynamic phenomena can be investigated through a combination of standard or intensified camera (ICCD) imaging and schlieren visualization.
Some shrimps (Hoplophorus) emit a luminous secretion from luminous organs, while others possess true light organs (photophores), which consist of a lens, reflector, and light-emitting photogenic cells.
With a control scheme resulting in constant emitted total luminous flux significant electrical power saving can be achieved since at lower temperatures, due to increasing efficiency/efficacy less electrical power, thus, lower forward current levels are sufficient.
A device using compound 1 as an emitting material exhibited luminous efficiency, power efficiency, external quantum efficiency and CIE coordinates of 3.37 cd/A, 1.50 lm/W, 1.87% at 20 mandm2 and (0.18, 0.25) at 7 V, respectively.
A method is presented combining the IR images and the visible images; it offers further insight into the relationship between the heat emitted by the luminous part and the obscured, nonluminous, part of the flame.
German physicist who won the 1919 Nobel Prize for Physics for his discovery in 1913 that an electric field would cause splitting of the lines in the spectrum of light emitted by a luminous substance; the phenomenon is called the Stark effect.
Present test times were 100 200 s and yielded steady axisymmetric flames that were close to the laminar smoke point (including flames both emitting and not emitting soot) with luminous flame lengths of 15 63 mm.
The most luminous stars emit several million solar luminosities.
