collimator, monochromator, galvo, illuminance, tomographic, wavefront, aperture, photomultipliers, iris diaphragm, electron optics, spherical aberration, photoconductive, galvanometer, diffraction, etalon, magnification, birefringent, magnetisation, photomultiplier, chamfering, stereopsis, emissivity, photocell, azimuthal, spectrophotometry, circular polarization, fluoroscopy, opacification, parallax, paramagnetic, image intensifier, calorimetric, planarity, keratectomy, goniometer, pentaprism, polarimeter, strain gage, photometric, demultiplexer, compensator, fiducial, coronary sinus, photodiode, concentricity, pyrometers, kinematic, detents, backscattering, toric lens, josephson junction, colorimetry, transmissivity, photolithographic, fovea, photometer, inhomogeneity, calibration, capsulotomy, conspicuity, dipole moment, fundus, amplitude modulation, scintillator, spectro, retroreflector, sigmoid, intraventricular, handwheel, mosaicking, diopter, pulser, linac, variable resistor, waviness, absorbance, illumination, mev, phototransistor, spectrometric, thoracoscope, dephasing, tailstock, imager, diffraction grating, directivity, baseplate, photocoagulation, cytometer, quantization, oxyhemoglobin, coronagraph, ferrites, bistable, workpiece, convex lens, coronal, sagittal, sphericity, photodetector, arcsecond, angulation, shielding, collimators, centering, synchronization, sizing, spacing, tuning, alignment, focussing, meshing, sealing, synchronisation, tolerances, compaction, decoupling, lubrication, matching