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O que (quem) é luminous efficiency - definição

MEASURE OF HOW WELL A LIGHT SOURCE PRODUCES VISIBLE LIGHT

Luminous coefficient; Luminous efficiency; Lighting efficiency; Luminous efficacies; Lighting efficacy; Lm/W; Overall luminous efficiency; Overall luminous efficacy; Wall-plug luminous efficacy; Wall-plug efficacy; Wall-plug luminous efficiency; Luminous efficacy of a source; Luminous efficacy of radiation; Lumen per watt; Lumens per watt; Bulb efficiency

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, measured in lumens per watt in the International System of Units (SI).

https://en.wikipedia.org/wiki/Luminous_efficacy

Spectral efficiency

INFORMATION RATE THAT CAN BE TRANSMITTED OVER A GIVEN BANDWIDTH

Spectrum efficiency; System spectrum efficiency; System spectral efficiency; Link spectral efficiency; Bandwidth efficiency; BandWidth efficiency; Area spectral efficiency; Spectral efficiency comparison table; Bit/s/Hz; Bits/s/Hz; (bit/s)/Hz; (bit/s)/Hertz; Modulation efficiency; Channel spectral efficiency

Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is utilized by the physical layer protocol, and sometimes by the medium access control (the channel access protocol).

https://en.wikipedia.org/wiki/Spectral_efficiency

Faraday efficiency

THE EFFICIENCY OF A CATALYST IN ELECTROCHEMISTRY

Faraday Efficiency; Faradaic efficiency; Coulombic efficiency; Current efficiency

Faraday efficiency (also called faradaic efficiency, faradaic yield, coulombic efficiency or current efficiency) describes the efficiency with which charge (electrons) is transferred in a system facilitating an electrochemical reaction. The word "Faraday" in this term has two interrelated aspects.

https://en.wikipedia.org/wiki/Faraday_efficiency

Wikipédia

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, measured in lumens per watt in the International System of Units (SI). Depending on context, the power can be either the radiant flux of the source's output, or it can be the total power (electric power, chemical energy, or others) 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 light source or overall luminous efficacy.

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. The luminous efficacy of a source is the product of how well it converts energy to electromagnetic radiation, and how well the emitted radiation is detected by the human eye.

https://en.wikipedia.org/wiki/Luminous efficacy