Active/passive signature enhancer (APSE)

Apparatus for displaying a suspended image

Arrangement for retroreflection of a ray using triple prisms

Arrangement of corner reflectors for a nearly...

Asymmetric cube corner article

Bar coded retroreflective target

Beam conditioning to reduce spatial coherence

Biased lenticular sign system

Chameleonic cube corners

Colored retroreflective sheeting and method of making same

Composite triangular-pyramidal cube-corner retroreflective...

Conformable cube corner retroreflective sheeting

Conformable cube corner retroreflective sheeting

Conformable retroreflective film structure

Constant-deviation reflector

Corner cube arrays and manufacture thereof

Corner cube chemical-biological agent sensor

Corner cube reflector, method of making the reflector and...

Corner cube reflector, method of making the reflector and...

Corner cube retroreflector