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