Frequency response control

Frequency routing device having a spatially filtered optical...

Frequency selective interwaveguide coupler

Frequency selective light coupling and decoupling device

Frequency separating/mixing device for guided optical waves

Frequency tuning optical device

Frequency-addressing matrix routing head for light beams

Frequency-selective optical switch using polarization rotation

Fresnel lens

Fresnel spiral reflector and method of making same

Fresnel zone plate optical memory device

Fresnel-type optical structure

Fringe pattern method and apparatus for producing x- ray...

Front light devices and methods of fabrication thereof

Front removable insert

Frontal reflector bracing

Frustrated total internal reflection device

Frustrated total internal reflection switch using waveguides...

Full color reflective display with multichromatic sub-pixels

Full color three-dimensional flat panel display