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