Electro-optical modulator which provides optical bias stabilizat
Electron-wave coupled semiconductor switching device
Exposure device for color CRT manufacture and a compound correct
Exposure-equalizing system for photographic images
Eye-cup cover for a viewfinder
Fiber optic multiplexer and demultiplexer system
Fibre optic transmission system
Filter apparatus for camera
Finder optical system
Focal point adjusting device for zoom lens
Focus detection device for a camera
Focusing control apparatus with aberration compensation
Focusing torque control device for lens barrel
Fusible link actuators for deformable mirrors
High-finesse optical resonator for cavity ring-down spectroscopy
High-finesse optical resonator for cavity ring-down spectroscopy
Hollow surface illuminator
Holographic jewel
Holographic television apparatus with semiconductor device
Hybrid optical module