Provided are fabrics having retroreflectivity, products produced therefrom and methods of their manufacture.

Provided are fabrics having retroreflectivity, products produced therefrom and methods of their manufacture.

A system for use in imaging in the air, including: an image source, a transflective mirror and a retroreflective element. Light emitted by the image source is irradiated onto the retroreflective element after being reflected by the transflective mirror, the light is reflected on the retroreflective element and emerges in an opposite direction along an original incident path, and after being transmitted by the transflective mirror, then forms a real image. A selective transmissive film is provided on a side of the transflective mirror facing the image source, and a phase delay optical element is provided on a side of the retroreflective element facing the transflective mirror such that first linearly polarized light incident on the retroreflective element from the transflective mirror becomes circularly polarized light after passing through the phase delay optical element.

A system for use in imaging in the air, including: an image source, a transflective mirror and a retroreflective element. Light emitted by the image source is irradiated onto the retroreflective element after being reflected by the transflective mirror, the light is reflected on the retroreflective element and emerges in an opposite direction along an original incident path, and after being transmitted by the transflective mirror, then forms a real image. A selective transmissive film is provided on a side of the transflective mirror facing the image source, and a phase delay optical element is provided on a side of the retroreflective element facing the transflective mirror such that first linearly polarized light incident on the retroreflective element from the transflective mirror becomes circularly polarized light after passing through the phase delay optical element.

A warning tag and process of making the warning tag are provided. The warning tag has a substrate layer, a reflective layer laid on top of the substrate layer, and a negatively printed message on the reflective layer. In some embodiments, the reflective layer is covered with non-reflective ink to form the non-reflective ink coating such that a warning indicia message is left exposed while the surrounding area thereto is covered. A process of making such warning tags is also provided.

Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The optical device may have a “front lit” configuration such that light being transported within the lightguide is extracted and retroreflected by the film toward a viewer. The optical device may have a “back lit” configuration such that light being transported within the lightguide is extracted and transmitted through the film toward a viewer. The retroreflective film may comprise beaded retroreflective sheeting such as that used in traffic signs and markings.

Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The optical device may have a “front lit” configuration such that light being transported within the lightguide is extracted and retroreflected by the film toward a viewer. The optical device may have a “back lit” configuration such that light being transported within the lightguide is extracted and transmitted through the film toward a viewer. The retroreflective film may comprise beaded retroreflective sheeting such as that used in traffic signs and markings.

The present disclosure generally relates to retroreflective elements having a mono-layer forming compound, articles (including, for example, retroreflective roadway paints) including these retroreflective elements, and methods of making and using these retroreflective elements. Some embodiments relate to a retroreflective element, comprising: a core; a plurality of glass beads adjacent to the core; and a monolayer-forming organic compound.

The present disclosure generally relates to retroreflective elements having a mono-layer forming compound, articles (including, for example, retroreflective roadway paints) including these retroreflective elements, and methods of making and using these retroreflective elements. Some embodiments relate to a retroreflective element, comprising: a core; a plurality of glass beads adjacent to the core; and a monolayer-forming organic compound.

Retroreflective article and precursor articles formed during the preparation of the retroreflective articles are provided. Also, methods of making both the precursor articles and the retroreflective articles are provided. The retroreflective articles and the precursor articles contain a reflective layer that includes both a reflective metal and a polymeric blend. The polymeric blend includes both a fluorinated polymer and a (meth)acrylate polymer. The retroreflective articles typically have anti-staining properties, anti-corrosion properties, or both.