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transmittance

transmittance

1 8.2
The part of light that passes through a material like glass
  • noun
  • /trænˈsmɪtəns/
  • Specialized
translation icon : transmitancia
  • The abscissa shows wavelength in nanometers; the ordinate shows transmittance, where 1.0 represents 100% transmitted light and 0 represents no transmitted light.
  • reflectance and transmittance

Examples

  • The scientists measured the light transmittance of the new glass material, finding it to be 95%.

  • The output is converted to percent transmittance with proprietary software and viewed on an LCD display.

    Academic text (2013)
  • Transmittance is similar except that transmitted light is used.

    Academic text (1992)
  • And we measure that in terms of oxygen transmittance or what we call ADK value.

  • Here is a plot of transmittance of two atmospheres.

    Blog text (19)
  • Here's a plot of the atmospheric transmittance between the surface and space.

    Blog text (19)
  • However, the transmittance through the AMLCD and color filter is about 4%, giving a net efficiency of 2 lm/W.

    Academic text (1992)
  • In these studies, removal of the lower epidermis of a bicolored leaf resulted in large increases in light transmittance.

    Academic text (1997)
  • To improve energy efficiency, architects consider the transmittance levels of windows in their designs.

  • The laboratory conducted tests to determine the transmittance of various filters at different wavelengths.

Synonyms

transmission
vstransmittance
  • Specialized
4 6.4

The percentage of light that passes through a material

is usually expressed as a ratio or percentage
transmissivity
vstransmittance
  • Specialized
8.1

How easily light or heat passes through a material

is a specific measured fraction rather than a general ability
transmission density
vstransmittance
  • Specialized
7.1

The amount of light or other radiation that a material lets pass through

is the incident energy fraction expressed as a ratio or percentage
transmissibility
vstransmittance
  • Specialized
8.4

How much vibration or sound passes through a material

is limited to radiant energy fraction rather than mechanical waves

Antonyms

reflection
  • Specialized
27 2.4

Light, sound, or heat bouncing off a surface instead of going through it

absorption
  • Specialized
21 4.6

A material takes in energy or a substance from another material

How Transparent

transparency
  • Specialized
5 4.6
transmittance
  • Specialized
1 8.2
clarity
30 2.7
opacity
4 7.0

Surface Forms

transmittance singular

Morphology

transmittance = transmit (transparent) = transmit + ance

Formed by a regular noun-forming suffix '-ance' on the verb 'transmit', yielding the noun meaning 'the act, state, or result of transmitting', which matches the technical sense here.

Etymology

Transmittance comes from the parts trans- 'across' and mit 'send', the same root you see in transmit and mission. So, transmittance is the part of light or energy that is 'sent across' a material, which explains why we use the word to say how much passes through.