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