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