luminous flux, emissivity, photometric, emittance, photometer, transmittance, chromaticity, irradiance, microampere, photometry, luminous intensity, brightness, candelas, luminance, reflectance, illumination, transmissivity, polarimeter, azimuthal, reflectivity, luminous efficacy, absorbance, photomultipliers, colorimetry, absorption coefficient, photoconductive, gaussian, phototransistor, monochromator, photocurrent, calorimetric, dipole moment, microwatt, arcsecond, enthalpy, blackbody, magnon, photomultiplier, collimation, variable resistor, mev, microbalance, photocells, airglow, pyrometer, circular polarization, isotherms, photoluminescence, goniometer, backscattering, birefringence, josephson junction, milliwatt, photodetector, millivolts, magnifications, galvanometer, kinematic viscosity, radians, iris diaphragm, diffusion coefficient, kelvins, waviness, elastic modulus, obscuration, centroid, impedances, hysteresis loop, autofluorescence, kev, theodolites, lux, luminaire, cold cathode, collimator, datums, photodiode, nvis, voltage divider, magnetisation, interferometer, airflows, anisotropy, photodiodes, oxyhemoglobin, electrophoretic, wavefront, nernst, chemiluminescence, parallax, luminosities, strain gauge, thermopile, galvo, lumens, earthshine, cartesian coordinates, directivity, perimetry, coercivity, diopter, chromatogram, humidity, salinity, temperature, fluence, temperatures, altitude, concentration, concentrations, frequency, intensity, viscosity, voltage, magnification, snr

footcandle

brightness, light, luminance, luminosity, luminousness

illumination