57) ABSTRACT Related US Application Data A waveguide hologram illumination system is
based on thin substrate waveguides bearing a hologram on the surface 63 Continuation-in …

BACKGROUND 1. Field of the Invention The present invention relates to anticounterfeiting
security devices and methods employing holograms and/or encoded patterns of dots. 2 …

A method and apparatus for drug product tracking (or other pharmaceutical, health care or
cosmetics products, and/or the packages or containers they are supplied with) using …

A multimode waveguide having a small thickness has light coupled to the side of the
waveguide in order to provide a multimode operation of the waveguide for providing a …

It would therefore be an advantage to provide a display hologram structure that provides for
optimal playback illu mination of a display hologram. Another advantage would be to …

A multimode waveguide having a small thickness has light coupled to the side of the
waveguide in order to provide a multimode operation of the waveguide for providing a …

Microparticles 8 includes an optical substrate 10 having at least one diffraction grating 12
disposed therein. The grating 12 having a plurality of colocated pitches Λ which represent a …

4,737,001 4/1988 Moss....... 359/34 Amethod and system for recording and displaying
grazing 4,888,260 12/1989 Cowan........... 359/3 incidence (ie, steep reference beam angle) …

A method and system for recording and displaying grazing-incidence (ie, steep reference
beam angle) holograms supported on a substrate having thin edge-illuminatable geometry …

A method and apparatus are provided for aligning optical elements or microbeads, wherein
each microbead has an elongated body with a code embedded therein along a longitudinal …