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The luminous gain of a single stage with Af ( flux gain ) is, to a first approximation, given by the product of the photocathode sensitivity S ( amp / lumen ), the anode potential V ( volts ), and the phosphor conversion efficiency P ( lumen/watt ).
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Some Related Sentences
luminous and gain
The luminous flux gain of a single stage is given by: Af.
The luminous gain of the discussed tube was calculated from Eq. ( 6 ) for the 16 possible combinations of S-11 and S-20 photocathodes and P-11 and P-20 phosphor screens, for night light and P-20 light input.
The following table ( 14-2 ) lists the ( luminous ) gain values computed according to Eq. ( 6 ) with Af.
luminous and single
The luminous efficiency and resolution of single stages, fiber couplers, and finally of the composite tube will be computed.
Although Imagism isolates objects through the use of what Ezra Pound called " luminous details ", Pound's Ideogrammic Method of juxtaposing concrete instances to express an abstraction is similar to Cubism's manner of synthesizing multiple perspectives into a single image.
The ball can be in plain single colour, multi-colour, and luminous colours, but not in any colour that will impair the performance of the players.
# the wavelength ( or wavelength range ) of the illumination ( this parameter and the illumination intensity can be combined into a single parameter for humans or other animals for which the sensitivities of rods and cones are known as a function of wavelength using the luminous flux function );
As the patent said such a system " allowed to provide separate supply to several lighting fixtures with different luminous intensities from a single source of electric power ".
For paperboys using a bike, and the typical paper-round bag-in the UK a luminous, waterproof coloured bag with a single strap-the papers ( chiefly at the weekend ) are collectively very heavy and / or thick, meaning that often on a Saturday or a Sunday the round has to be split and completed in two halves.
Also present in Dolichopteryx, Opisthoproctus, and Winteria species are a number of luminous organs ; in Dolichopteryx there are several along the length of the belly, and in Opisthoproctus there is a single organ in the form of a rectal pouch.
; 12 " luminous vinyl single / UK CD single / Radio promo CD
luminous and stage
... she thrusts herself into the music, aggressively, directly, furiously, roars in the most beautiful opera alto, then, through shrieks and squeals, precipitates into luminous soprano heights, she parodies, satirises, and howls on stage like a dervish.
Kappa Crucis is a very large ( hence very luminous ) young star in its red supergiant stage, which paradoxically indicates that its life is drawing to a close.
At this stage, luminous, baryonic matter is expected to simply mirror the evolution of the dark matter, and their distributions should closely trace one another.
The vast majority of all stars are cooler than the Sun, but the fraction that is hotter includes massive, highly luminous stars which shed enormous quantities of matter into interstellar space, and also white dwarf stars, which are the end stage of stellar evolution for the vast majority of all stars and which have temperatures as high as 100, 000 K when they first form.
luminous and with
Michelangelo found the rabbi in the room of study, a gentle old man with a white beard and luminous grey eyes, robed in black gabardine with a skullcap on his head.
It is a relatively close star at only 36. 7 light-years from Earth, and, together with Vega and Sirius, one of the most luminous stars in the Sun's neighborhood.
The tathāgathagarbha, the Theravāda doctrine of bhavaṅga, and the Yogācāra store consciousness were all identified at some point with the luminous mind of the Nikāyas.
A common candle emits light with a luminous intensity of roughly one candela.
A common candle emits light with roughly 1 cd luminous intensity.
" Her portraits Fanny Travis Cochran, Dorothea and Francesca, and Ernesta and her Little Brother, are fine examples of her skill in painting children ; Ernesta with Nurse, one of a series of essays in luminous white, was a highly original composition, seemingly without precedent.
He created a more elaborate scarecrow costume, with eerie luminous paint.
In 2002, Lumileds made five-watt LEDs available with a luminous efficacy of 18 – 22 lumens per watt ( lm / W ).
In 2006, they demonstrated a prototype with a record white LED luminous efficacy of 131 lm / W at 20 mA.
Nichia Corporation has developed a white LED with luminous efficacy of 150 lm / W at a forward current of 20 mA.
As an example, if you form a demagnified image with a lens, the luminous power is concentrated into a smaller area, meaning that the illuminance is higher at the image.
Novae are not to be confused with supernovae or luminous red novae.
Shakespeare was also noted for his frequent play with less serious puns, the " quibbles " of the sort that made Samuel Johnson complain, " A quibble is to Shakespeare what luminous vapours are to the traveller!
The star as seen from earth is actually a triple star system, with the primary star ( Rigel A ) a blue-white supergiant of absolute magnitude – 7. 84 and around 117, 000 times as luminous as our sun.
Although they are at temperatures of roughly, the contrast with the surrounding material at about 5780 K ( 5500 ° C ) leaves them clearly visible as dark spots, as the luminous intensity of a heated black body ( closely approximated by the photosphere ) is a function of temperature to the fourth power.
Readily identified by its orange hue, Alpha Trianguli Australis is a bright giant star of spectral class K2 IIb-IIIa with an apparent magnitude of + 1. 91, which lies away and has an absolute magnitude of-3. 68 and is 5500 times more luminous than our sun.
It is a relatively close star at only 25 light-years from Earth, and, together with Arcturus and Sirius, one of the most luminous stars in the Sun's neighborhood.
Riding Couple ( 1907 ) depicts a man on horseback, holding a woman with tenderness and care as they ride past a Russian town with luminous walls across a river.
A vertical line corresponds with height, and offers no support ; it possesses a luminous, warm tonality close to white and yellow.
Mixtures of powdered ytterbium with polytetrafluoroethylene or hexachloroethane burn with a luminous emerald-green flame.
luminous and Af
The luminous efficiency Af of a photocathode depends on the maximum radiant sensitivity Af and on the spectral distribution of the incident light Af by the relation: Af where Af is normalized radiant photocathode sensitivity.
luminous and flux
If a source emits a known luminous intensity I < sub > v </ sub > ( in candelas ) in a well-defined cone, the total luminous flux Φ < sub > v </ sub > in lumens is given by
: is the luminous flux or luminous power ( lm ),
Direct sunlight has a luminous efficacy of about 93 lumens per watt of radiant flux.
* Lumen ( unit ), the SI unit of luminous flux
The lux ( symbol: lx ) is the SI unit of illuminance and luminous emittance, measuring luminous flux per unit area.
Illuminance is a measure of how much luminous flux is spread over a given area.
One can think of luminous flux ( measured in lumens ) as a measure of the total " amount " of visible light present, and the illuminance as a measure of the intensity of illumination on a surface.
* mlm, a unit for luminous flux, corresponding to 1 / 1000 lumen
The luminous flux ( or visible energy ) in a light source is defined by the photopic luminosity function.
The following equation calculates the total luminous flux in a source of light.
: is the luminous flux in lumens,
Luminous intensity should not be confused with another photometric unit, luminous flux, which is the total perceived power emitted in all directions.
* Mega rayleigh ( unit ), a unit of luminous flux, used to measure air glow
* Lumen, unit of luminous flux
In photometry, illuminance is the total luminous flux incident on a surface, per unit area.
Similarly, luminous emittance is the luminous flux per unit area emitted from a surface.
A phot ( ph ) is a photometric unit of illuminance, or luminous flux through an area.
The relative luminous flux of a source was compared with a standard source.
0.211 seconds.