lens
laser
optical trap
electron lens
photocounter
pressor beam
photointerrupter
thermionic valve
ray
laser pointer
lasing
light-emitting diode
transmission electron diffraction
electron optics
inflector
luminescent screen
klystron
repulsor beam
photoinjector
electronograph
electron microscope
circularizer
source of illumination
misregister
X-ray tube
projector
penetrometer
reflector
yoke
grating
scanning
diffraction grating
closed circuit
chromatoscanner
collimator
gun
photocathode
beamformer
electrolucent
dirty bomb
optical tweezer
electroptode
reflectivity
laser pen
reflection
laserwire
agglomerator
tightbeam
reflexion
infraparticle
stigmator
beam splitter
diffractometer
flyback
buncher
nanolaser
shaft
autocollimator
photophone
periscope
diodelaser
transmission electron microscopy
electromicroscopic
infrared
Fresnel zone plate
optic
tractor beam
electron microscopic
heliostat
nanobeam
electromicroscope
smart bomb
particle beam
laser beam
sensorchip
multislice
goniostat
laser diode
nanoprobe
electrodense
junction detector
mirrorlike
specular
coelostat
cathode ray
magnetron
disintegrator
Elk
electroantennograph
apodizer
optophone
television-camera tube
television pickup tube