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Meaning of "luminous efficiency" in the English dictionary

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DICTIONARY
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PRONUNCIATION OF LUMINOUS EFFICIENCY

luminous efficiency play
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GRAMMATICAL CATEGORY OF LUMINOUS EFFICIENCY

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Luminous efficiency is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES LUMINOUS EFFICIENCY MEAN IN ENGLISH?

Luminous efficacy

Luminous efficacy is a measure of how well a light source produces visible light. It is the ratio of luminous flux to power. Depending on context, the power can be either the radiant flux of the source's output, or it can be the total power consumed by the source. Which sense of the term is intended must usually be inferred from the context, and is sometimes unclear. The former sense is sometimes called luminous efficacy of radiation, and the latter luminous efficacy of a source. The luminous efficacy of a source is a measure of the efficiency with which the source provides visible light from electricity. The luminous efficacy of radiation describes how well a given quantity of electromagnetic radiation from a source produces visible light: the ratio of luminous flux to radiant flux. Not all wavelengths of light are equally visible, or equally effective at stimulating human vision, due to the spectral sensitivity of the human eye; radiation in the infrared and ultraviolet parts of the spectrum is useless for illumination.

Definition of luminous efficiency in the English dictionary

The definition of luminous efficiency in the dictionary is the efficiency of polychromatic radiation in producing a visual sensation. It is the radiant flux weighed according to the spectral luminous efficiencies of its constituent wavelengths divided by the corresponding radiant flux V.

WORDS THAT BEGIN LIKE LUMINOUS EFFICIENCY

luminarism
luminarist
luminary
lumination
lumine
luminesce
luminescence
luminescent
luminiferous
luminism
luminosities
luminosity
luminous
luminous efficacy
luminous energy
luminous exitance
luminous flux
luminous intensity
luminously
luminousness

WORDS THAT END LIKE LUMINOUS EFFICIENCY

agency
deficiency
efficiency
energy efficiency
enzyme deficiency
expediency
fuel efficiency
immune deficiency
immunodeficiency
inefficiency
insufficiency
leniency
mental deficiency
proficiency
protein deficiency
quantum efficiency
resiliency
saliency
self-sufficiency
sufficiency
vitamin deficiency

Synonyms and antonyms of luminous efficiency in the English dictionary of synonyms

SYNONYMS

Translation of «luminous efficiency» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF LUMINOUS EFFICIENCY

Find out the translation of luminous efficiency to 25 languages with our English multilingual translator.
The translations of luminous efficiency from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «luminous efficiency» in English.

Translator English - Chinese

发光效率
1,325 millions of speakers

Translator English - Spanish

eficacia luminosa
570 millions of speakers

English

luminous efficiency
510 millions of speakers

Translator English - Hindi

चमकीले दक्षता
380 millions of speakers
ar

Translator English - Arabic

كفاءة مضيئة
280 millions of speakers

Translator English - Russian

светоотдача
278 millions of speakers

Translator English - Portuguese

eficiência luminosa
270 millions of speakers

Translator English - Bengali

উজ্জ্বল দক্ষতা
260 millions of speakers

Translator English - French

rendement lumineux
220 millions of speakers

Translator English - Malay

Kecekapan bercahaya
190 millions of speakers

Translator English - German

Lichtausbeute
180 millions of speakers

Translator English - Japanese

発光効率
130 millions of speakers

Translator English - Korean

발광 효율
85 millions of speakers

Translator English - Javanese

Efisiensin luminous
85 millions of speakers
vi

Translator English - Vietnamese

hiệu quả phát sáng
80 millions of speakers

Translator English - Tamil

ஒளிரும் திறன்
75 millions of speakers

Translator English - Marathi

चमकदार कार्यक्षमता
75 millions of speakers

Translator English - Turkish

Işık verimliliği
70 millions of speakers

Translator English - Italian

efficienza luminosa
65 millions of speakers

Translator English - Polish

skuteczność świetlna
50 millions of speakers

Translator English - Ukrainian

світловіддача
40 millions of speakers

Translator English - Romanian

eficiență luminoasă
30 millions of speakers
el

Translator English - Greek

φωτεινή απόδοση
15 millions of speakers
af

Translator English - Afrikaans

lig doeltreffendheid
14 millions of speakers
sv

Translator English - Swedish

ljusutbyte
10 millions of speakers
no

Translator English - Norwegian

lysutbytte
5 millions of speakers

Trends of use of luminous efficiency

TRENDS

TENDENCIES OF USE OF THE TERM «LUMINOUS EFFICIENCY»

The term «luminous efficiency» is normally little used and occupies the 118.643 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Little used
45
/100
The map shown above gives the frequency of use of the term «luminous efficiency» in the different countries.
Principal search tendencies and common uses of luminous efficiency
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «luminous efficiency».

FREQUENCY OF USE OF THE TERM «LUMINOUS EFFICIENCY» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «luminous efficiency» during the past 500 years. Its implementation is based on analysing how often the term «luminous efficiency» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about luminous efficiency

EXAMPLES

10 ENGLISH BOOKS RELATING TO «LUMINOUS EFFICIENCY»

Discover the use of luminous efficiency in the following bibliographical selection. Books relating to luminous efficiency and brief extracts from same to provide context of its use in English literature.
1
On the Luminous Efficiency of the Nernst Glower...
This is a reproduction of a book published before 1923.
William Kunerth, 2012
2
International Critical Tables of Numerical Data, Physics, ...
CONTENTS PAO, Definitions and symbols 436 Relative visibility factor of monochromatic light 436 Least mechanical equivalent of light 436 Luminous characteristics of a black-body 437 Luminous efficiency of radiation from electrically excited ...
Edward Wight Washburn, Callie Hull, 1929
3
Competition Science Vision
Luminous efficiency : It is the total luminous flux per unit radiant flux. That Overall luminous efficiency Luminous flux emitted Power input to the source Comparison of power of two sources : The sources ST and S2 are placed as shown in the ...
4
Introduction to Color Imaging Science
The spectral luminous efficiency functions If we are willing to assume that the luminous sensation is additive, one of the important tasks in photometry is to measure the relative efficiency of light of various wavelengths in producing the luminous ...
Hsien-Che Lee, 2005
5
Light-Emitting Diodes
Revised and fully up-dated, the second edition of this graduate textbook offers a comprehensive explanation of the technology and physics of LEDs such as infrared, visible-spectrum, ultraviolet, and white LEDs made from III-V semiconductors ...
E. Fred Schubert, 2006
6
Handbook of Optical Metrology: Principles and Applications
The luminous efficiency of a light source is the ratio of luminous flux of the light source to the electrical input power (IV) of the device and shows how efficient the source is in converting the consumed electric power to light power perceived by ...
Toru Yoshizawa, 2009
7
Visual Transduction And Non-Visual Light Perception
CONTENTS Introduction Scotopic (Rod) Luminous Efficiency Function Photopic ( Cone) Luminous Efficiency Function Mesopic (Rod-Cone) Luminous Efficiency Functions Individual Differences Influencing Luminous Efficiency Conclusions ...
Joyce Tombran-Tink, Colin J. Barnstable, 2008
8
Multimedia Signals and Systems
3.2.1. Relative. Luminous. Efficiency. When a radiant energy distribution /(/I) is received, the different wavelengths do not have identical effects on the HVS. Figure 3.4 shows the relative luminous efficiency functions for the foveal (within 2  ...
Mrinal Kr Mandal, 2003
9
Introduction to Light Emitting Diode Technology and Applications
Thus, its luminous efficiency is 1000/60 or approximately 16.6 lm/W. In comparison, Seoul Semiconductor's white-warm Acriche ac-powered HB LED features 42 lm/W, whereas other LEDs yield over 50 lm/W. According to the U.S. Department ...
Gilbert Held, 2008
10
The Dictionary for Human Factors/Ergonomics
... mechanism other than high temperatures;flrf/. luminescent luminosity a measure of the relative efficiency of various wavelengths of visible light for exciting the retina luminosity function (Vx) see spectral luminous efficiency function luminous ...
James H. Stramler, Jr., 1992

10 NEWS ITEMS WHICH INCLUDE THE TERM «LUMINOUS EFFICIENCY»

Find out what the national and international press are talking about and how the term luminous efficiency is used in the context of the following news items.
1
Digitimes Research: LED bulb prices drop in China market
In terms of luminous efficiency, Toshiba 40W- and 60-equivalent bulbs available in the Japan market had the highest average levels of ... «Digitimes, Jul 15»
2
SEL offers LED corn light product line ranging from 36-120W
Bright - light transmission rate of 90% or more via the cover, uniform beam angle, no glare, high brightness, high luminous efficiency 7. «LEDs Magazine, Jun 15»
3
Digitimes Research: 7W, 9W LED bulb prices up in China in May
In terms of luminous efficiency, Toshiba 40W- and 60-equivalent LED light bulbs available in the Japan market had the highest average levels ... «Digitimes, Jun 15»
4
Ningbo Mayyard's Cloud Tri-Proof linear LED lamp is available in …
Cloud Series adopts high voltage linear technology with constant current output which produces luminous efficiency >110 LM/W and PF >0.95. «LEDs Magazine, Jun 15»
5
Clay Paky Shines on Prolight+Sound 2015
A modern focus tracking system concentrates maximum luminous efficiency precisely on the effect you wish to project, and the focus may be set ... «EtNow.com, Apr 15»
6
Popularising eco-friendly bulb LED
The luminous efficiency of a LED bulb is ten times and 1.1 times that of incandescent lamps and fluorescent lamps, respectively. An LED has a ... «Financial Express Bangladesh, Apr 15»
7
Osram launches variable LED family offering design flexibility for …
For example, luminous efficiency is 110lm/W in white, and 80lm/W in red. The Synios P 2720 family comprises three chip sizes with edge ... «Semiconductor Today, Apr 15»
8
Edison Opto introduces new PLCC high-voltage and wide-angle …
Edison's HV SMD LEDs feature high lm/$ and high luminous efficiency; for example, the 3030 series can achieve 190lm under 1.5W 33mA ... «LEDs Magazine, Apr 15»
9
Digitimes Research: March 7W, 9W LED light bulb prices down in …
In terms of luminous efficiency, Toshiba 40W- and 60-equivalent bulbs available in Japan had the highest average levels at 81.1lm/W and ... «Digitimes, Apr 15»
10
TFT Flat Panel Display Industry Chinese & Global (Value, Cost or …
Thirdly, OLED's quality is not steady for its employment of unstable chemical materials, and its luminous efficiency decays as time goes by, which is another fatal ... «PR Newswire, Mar 15»

REFERENCE
« EDUCALINGO. Luminous efficiency [online]. Available <https://educalingo.com/en/dic-en/luminous-efficiency>. Apr 2024 ».
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