Hand held microfiche viewer

Hand tearable patterned retroreflective material

Hand-held microscope

Hand-supportable imaging-based bar code symbol reader...

Hand-writable liquid crystal board set

Hands free magnification eyewear

Hanger for displaying eyeglasses

Hard/soft superposition progressive lens design

Harmonization of entry and exit axes of an infrared telescope

Hartmann-type optical wavefront sensor

Head conforming spectacles

Head engaging spectacle structure

Head for inserting optical fibers in alternated grooves of a...

Head mounted apparatus for viewing an image

Head mounted display

Head mounted display and viewing system using a remote...

Head mounted display for miniature video display system

Head mounted display optics

Head mounted display system with aspheric optics

Head mounted display utilizing diffractive optical elements