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