Hybrid planar lightwave circuit with reflective gratings

Hybrid refractive birefringent multifocal ophthalmic lenses

Hybrid waveguiding optical device

Hydrogel contact lenses having improved wettability

Hydrogels and articles made therefrom

Hydrogen absorbing mixture for optical fiber cables and...

Hydrogen concentration relocation in optical fiber

Hydrogen diffusion delay barrier for fiber optic cables used...

Hydrogen diffusion delay barrier for fiber optic cables used...

Hydrogen fixing fillers for optical fiber cables and...

Hydrogen-resistant optical fiber/grating structure suitable...

Hydrophilic colored contact lenses

Hydrophilic contact lens made from polysiloxanes which are...

Hydrophilic copolymer of n,n-(c1-c2alkyl) acrylamide

Hydrophilic polymers and contact lenses of high water content

Hydrophilic polymers and contact lenses of high water content

Hydrophilic synthetic high polymers for soft contact lenses...

Hydrophilic, oxygen permeable contact lens

Hydroxyarylquinazolines and their use as uv-absorbers

Hyperhemispherical radiation system