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