lighting, brightness, illuminance, illuminator, luminance, luminaire, photometric, collimating, luminescence, photometry, luminous intensity, photoflash, luminosity, luminous efficacy, strobe, candlepower, fresnel lens, lumens, irradiance, obscuration, reflectivity, infrared, lasers, lux, scintillation, magnification, photocell, lamps, transmittance, shading, reflectors, candelas, transmissivity, dimming, diodes, electroluminescent, emissivity, reflectance, cold cathode, luminous flux, photoluminescence, collimator, optics, emittance, photodiode, aperture, photometer, incandescence, parabolic reflector, fluorescence, glare, phosphor, chromaticity, fluorescent, clerestory, halogen, photodiodes, directivity, refraction, stroboscopic, parallax, ionisation, diffraction, fresnel, image intensifier, ultraviolet, photodetector, flashbulb, phototransistor, glow, photomultiplier, searchlights, emissive, florescence, penlight, fluorescent lamp, parabolic mirror, plasmon, nvis, airglow, conspicuity, infrared ray, headlamp, extragalactic, colorimetry, radiance, illuminant, convex lens, floodlight, photomultipliers, flashgun, lightwave, wavelength, excitation, spectral, absorbance, monochromator, wattage, fluorescence microscopy, iris diaphragm, photoconductive, stroboscope, light, visibility, heat, nourishment, refrigeration, daylight, elevation, purification, cohesion, compensation, satisfaction, sunlight, cooling, humidity, illuminations, saturation, experimental, polarization, activation, circuit, photon, acoustic, arousal, bias, deflection, feedback, minimizing, optimised, potentiometric, scotopic, search

dark, darkness, light, lighting

., brightness constancy, dark, darkness, dark adaptation, daylight vision, dimmer, flare, flood, floodlight, flood lamp, high beam, illumination unit, lambert, lamp, light, lighting, lightless, lightness, light adaptation, light source, low beam, lux, lx, night-sight, night game, night vision, obscureness, obscurity, phase, phot, photoflood, photopic vision, room light, scotopic vision, sky glow, strip lighting, twilight vision, ultraviolet lamp, ultraviolet source, unilluminated, unlighted, unlit

brightness, condition, light, luminance, luminosity, luminousness, painting, picture, state

illuminance, light, miniature