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