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