transmittance


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Related to transmittance: absorbance, Thermal transmittance

transmittance 

A measure of transmission expressed as the ratio of the intensity of the transmitted light I′ to the intensity of the incident light I, for a specified wavelength, i.e. T = I′/I. It is usually given as a percentage, i.e. T = I′/I ✕ 100. Syn. total transmittance. See absorbance; optical density.
References in periodicals archive ?
Regarding IPM conducted in our earlier study [24], this study experimentally investigated the effects on IR and VR transmittance when we changed the press stage conditions in IPM.
The optical transmittance of the films was measured by a UV-Visible spectrophotometer in the wavelength range 350-750 nm.
Hence, the calculation method is capable of acquiring transmittance using optical measurements of a laser power meter in the experimental setup.
To further investigate the dynamic response of our device, a series of time dependent tests were performed with variable voltages and the transmittance was observed at a wavelength of 550 nm.
High transmittance of 88 % was observed for the SZO film doped with 0.008 mol % of dopant and its band gap was found to be 3.1 eV.
Since the width of the square ring is very small, the metal part in the FSS structure is relatively less, which means the FSS has good light transmittance.
where superscript c denotes the component of a certain color channel and [??](x) denotes a roughly estimated transmittance. The minimum operator is adopted for color channel c, so
where T is the transmittance at 550 nm and [R.sub.S] is the sheet resistance.
The optical characterization of the films was made via the transmittance spectra, measured with a Cary 5000 spectrometer from Varian, in a spectral range of 300 to 800 nm (UV until Near Infra-Red).
Coded apertures are two-dimensional arrays with patterns of opaque materials; sections that do not contain opaque material define their transmittance, i.e, the fraction of light that can pass through them.
Otherwise, it also accounts for the decrease in the films transmittance as the pores increased.
It accounts for three key parameters affecting the energy performance of all building envelopes - i) thermal performance (assembly U-value and thermal mass of opaque construction, glazing properties, internal and external heat transfer coefficients, etc.), ii) daylighting performance (visible light transmittance) and iii) infiltration.