transmittance
[/trænzˈmɪtəns/ or /trænsˈmɪtəns/]
nounpl: transmittances
transmitância
1. The fraction of incident electromagnetic radiation that passes through a substance without being absorbed or reflected
The transmittance of the glass was measured at 95 percent in the visible light spectrum.
A transmitância do vidro foi medida em 95 por cento no espectro de luz visível.
2. In physics and optics, the ratio of transmitted light intensity to incident light intensity
Scientists calculated the transmittance values for different wavelengths of ultraviolet light.
Os cientistas calcularam os valores de transmitância para diferentes comprimentos de onda de luz ultravioleta.
3. The ability or capacity of a medium to allow light or other radiation to pass through it
The transmittance properties of the filter determine how much light reaches the sensor.
As propriedades de transmitância do filtro determinam quanto de luz atinge o sensor.
Transmittance is primarily a scientific and technical term used in optics, physics, and materials science. It is equally recognized in both American English and Brazilian Portuguese scientific communities. The term is especially important in fields such as spectrophotometry, materials engineering, and optical design. There are no colloquial or cultural variations of this term; it maintains the same meaning across all English-speaking and Portuguese-speaking scientific communities.
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