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