rear nodal point
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- Varotal lens
- diatomic roto
- chronophotography
- optical head controllers,control ics/modules
- metacrystalline
- infra-red beam folower
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- time-averaged shadow-moire method
- geometrical focus
- upper state relaxation
- mode pattern
- optical harmonic generation
- multilongitudianl-mode laser
- intensifying screen
- filters
- visible emissivity
- push out
- optical deformation
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