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