Sheeting with composite image that floats

US8057980B2 · kind B2 · utility

Inventors

• Douglas S. Dunn · Maplewood, US
• Robert L. W. Smithson · Mahtomedi, US
• Robert T. Krasa · Hudson, US
• Michael W. Dolezal · Eden Prairie, US
• Jeffrey M. Florczak · Maplewood, US
• Stephen P. Maki · North St. Paul, US
• Richard M. Osgood, III · Winchester, US

Key dates

• Filing date: Dec 20, 2007
• Grant date: Nov 15, 2011
• Expiry date: Jun 24, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B30/56
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Translucent, transparent, or semi-translucent microlens sheetings with composite images are disclosed, in which a composite image floats above or below the sheeting, or both. The composite image may be two-dimensional or three-dimensional. The sheeting may have at least one layer of material having a surface of microlenses that form one or more images at positions internal to the layer of material, at least one of the images being a partially complete image. Additional layers, such as retroreflective, translucent, transparent, or optical structure layers may also be incorporated into the sheeting.