exposure meter
absorptiometer
sensitometer
light meter
photometer
heliograph
spectrophotometer
lucimeter
glossmeter
illuminometer
goniophotometer
exposure
optical bench
nightscope
reflective power
adaptometer
optical telescope
albedo
wavemeter
densitometer
anaclasis
photoacoustics
photoreflectance
chromometer
eriometer
photometry
sensitivity
ondoscope
dynactinometer
photometrograph
transilluminator
focimeter
Fizeau-Foucault apparatus
reflectometer
foot candle
actinometer
photoradiography
pyranometer
spectrogoniometer
pseudoscope
spectropotentiometry
sunphotometer
odometer
haemadromograph
sensitometry
apertometer
phototelescopic
photoimpedance
visometer
stereometer
astrometer
ardency
speed
biothesiometer
transfluorescence
spectroheliometer
photoscope
Geiger counter
light microscope
reflector
nocturlabe
auxetometer
sunphotometry
Abbe refractometer
coefficient of absorption
ISO
absorption coefficient
chromameter
Kundt's tube
stream clock
absorptance
heliotrope
interferometer
otheoscope
chromascope
station staff
pachymeter
polarimeter
solar microscope
Abney level
retinoscope
forceplate
specular
ticker
photobehavior
laser pointer
photometrician
absorptivity
shininess
absorption factor
mirrorlike