Hand held microfiche viewer

Hand tearable patterned retroreflective material

Hand-held microscope

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

Hands free magnification eyewear

Harmonization of entry and exit axes of an infrared telescope

Hartmann-type optical wavefront sensor

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

Head mounted display with wave front modulator

Head mounted projector

Head up display means for aircraft

Head-mounted display apparatus for profiling system

Head-mounted display system