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