- trolands
- n. unit in photometry for measuring the amount of light that reaches the retina of the eye
English contemporary dictionary. 2014.
English contemporary dictionary. 2014.
troland — (Td) a unit used in photometry to measure the amount of light reaching the retina of the eye. The retinal illuminance in trolands is equal to the luminance of the light shining on the eye, measured in candelas per square meter (cd/m2),… … Dictionary of units of measurement