Hand-held electronic appliance with optional magnifying...

Hand-held magnifying device

Handheld illuminating magnifier

Handheld magnifying device incorporating a circular array of...

Head belt of head magnifying glass

Head mounted display viewing optics with improved optical...

Head-mounted carrier for positioning opto-electronic devices...

Headgear with viewing monocular

Headlight glass for a motor vehicle, a method of making a mold d

Heat dissipation structure for optical engine

Heat sink tab for optical sub-assembly

Heat sink tab for optical sub-assembly

Heavy-duty precision support for an optical instrument

Helicoid threaded tube of synthetic resin and lens barrel compri

Hermetic electrowetting device

High aperture finite conjugate lens system

High aperture finite conjugate lens system suitable for use as a

High aperture objective lens

High bandwidth optical mount

High dispersion, laser protection lens