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