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