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 optical equalizer for transmission of signals via...

Full range variable proportional fill flash system

Full-color zero-order suppressed diffraction optics...

Fully automated telescope system with distributed intelligence

Functional device based on focusing-concave gratings for...

Furcation kit

Furcation kit

Fused biconical taper fiber optic coupler station and...

Fused fiber optic coupler

Fused fibre plate with regular stacking of fibres which have...

Fusion splice element