inspection thermometer
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- holographic gratings
- time-averaged shadow-moire method
- diatomic roto
- filters
- chronophotography
- intensifying screen
- astrospectrograph camera
- optical head controllers,control ics/modules
- push out
- optical harmonic generation
- frequency summing
- upper state relaxation
- metacrystalline
- optical deformation
- visible emissivity
- geometrical focus
- multilongitudianl-mode laser
- mode pattern
- Varotal lens
- infra-red beam folower