Matches 1 - 50 out of 144 1 2 3 >
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7369742 Non-imaging optical corner turner  
The present invention provides a device and method to efficiently turn light from an optical fiber around a corner while avoiding the frustrated-TIR loss that would occur if the fiber were bent....
7224533 Optically retro-reflecting sphere  
An optically retro-reflecting sphere includes an inner sphere and an outer concentric spherical shell, and can be coupled to a reflective surface. Light entering the optically retro-reflecting...
7164536 Optically coupled toroidal lens:hemi-bead brightness enhancer for total internal reflection modulated image displays  
A brightness enhancing structure for a reflective display. A plurality of transparent hemi-beads form a film substantially covering and protruding inwardly from the structure's inward surface. A...
7152984 Cat's eye retro-reflector array coding device and method of fabrication  
The invention is a coded cat's eye retro-reflector array fabricated using data-driven, ink jet micro-dispensing technology. Specifically the invention claims the apparatus, the method of...
7140741 Color shifting retroreflector and method of making same  
Color shifting retroreflective articles can provide features such as decorative effects, evidence of tampering, security authentication or positional information. In some embodiments, the color...
7137712 Reflector system for determining position  
The invention relates to a reflector system for positioning a medical instrument or of body parts of a patient or for any determination of position, which is characterized by reflectors ( 3, 4, 5 )...
6966660 Article exhibiting dry and wet retroreflectivity  
A exposed-lens retroreflective article exhibiting retroreflection under dry and wet conditions is provided. The inventive article comprises a first set of optical elements having a first reflective...
6958860 Voided polymer film containing layered particulates  
Disclosed is an optical element comprising a polymer film containing a dispersion of minute layered particulates and microvoids.
6958179 Segmented sheeting and methods of making and using same  
The present invention provides a new sheeting article that may suitably include: a carrier having a first major surface and a second major surface; and a plurality of discrete segments of a...
6834971 Low-backscatter aperture structure  
A system including but not limited to a low-backscatter aperture structure, where the system can include but is not limited to a camera, an optical communications system, an imaging system, a test...
6764744 Diffractive and retroreflective textile fabrics, methods of making same, and articles made therefrom  
A composite fabric structure having unique visual and physical properties is described. The composite fabric includes a textile fabric layer having a visual surface and a rear surface. A layer of...
6696126 Visual-tactile signage  
Many embodiments of the present invention are imbued with both sight-facilitative and touch-facilitative characteristics. The invention's unitary resinous matrix configuration encompasses, in the...
6687389 Imaging apparatus  
An imaging apparatus suitable for capturing a image of one or more of a user's facial features is disclosed. The apparatus includes a spherical cold mirror which presents a concave surface to the...
6677030 Retroreflective articles having tackified acrylic adhesives for adhesion to curved low surface energy substrates  
An article comprising (a) a curved substrate having a surface energy below about 38 dynes/cm 2 ; (b) flexible retroreflective sheeting; and (c) a crosslinked pressure-sensitive adhesive adhering...
6656566 Retroreflective luminescent articles  
Sheeting material is disclosed that contains a retroreflective layer and a layer of luminescent material on the bottom or lower surface of the retroreflective layer. The sheeting material can be...
6652954 Retroreflective laminate comprising a tear resistant film  
The present invention relates to a laminate and an article comprising a retroreflective layer having a retroreflective viewing surface and an opposing surface and a tear resistant film disposed on...
6586067 Encapsulated lens retroreflective sheeting  
Encapsulated-lens retroreflective sheeting is described which contains an improved binder layer. The binder layer is obtained from a film-forming mixture which comprises: (A) a vinyl chloride...
6558009 Retroreflective sheeting containing a validation image and methods of making the same  
This invention relates to retroreflective sheeting which has an image, such as an image. More specifically, the image has varying appearance at different angles of view. The retroreflective...
6531205 Fluorescent yellow retroreflective sheeting  
A fluorescent yellow retroreflective sheeting article comprises a polymeric matrix, a fluorescent yellow-green dye selected from the group consisting of thioxanthene dyes and benzothiazene dyes,...
6472050 Light stable fluorescent vinyl suitable for use as a highway retroreflective roll-up sign  
Polyvinyl chloride (“PVC”) compositions and articles are provided which are suitable for fabricating flexible, reflective roll-up roadway signs in which a fluorescent perylene imide dye is...
6461718 Retroreflective sheet  
To provide a retroreflective sheet which is suitable for co-molding by injection molding or the like, wherein the retroreflective sheet can be laid within a mold and molded with a resin to form a...
6451408 Retroreflective article  
A retroreflective article that exhibits suitable retroreflective luminance under dry and dynamic wet conditions. The article includes an enclosed-lens retroreflective sheeting that, under dry...
6398369 Surface covering intended to be used on marking coverings for roads, parking areas and the like  
Surface coverings for marking road surfaces are disclosed including elastic particles for application to the road surface, the elastic particles including a plurality of light reflectors such as...
6350036 Retroreflective sheeting containing a validation image and methods of making the same  
This invention relates to retroreflective sheeting which has an image, such as an image. More specifically, the image has varying appearance at different angles of view. The retroreflective...
6350034 Retroreflective articles having polymer multilayer reflective coatings  
A retroreflective article that has a layer of optical elements and a multilayer reflective coating disposed on the optical elements. The reflective coating reflects light back into the optical...
6243201 Retroreflective articles having polymer multilayer reflective coatings  
A retroreflective article that has a layer of optical elements and a multilayer reflective coating disposed on the optical elements. The reflective coating reflects light back into the optical...
6217175 Laser marking process on retro-reflective material for security labels  
A simplified method and apparatus for creating counterfeit-resistant labels is described. A laser is used to mark a retro-reflective material such that light only from specific directions are...
6172810 Retroreflective articles having polymer multilayer reflective coatings  
A retroreflective article that has a layer of optical elements and a multilayer reflective coating disposed on the optical elements. The reflective coating reflects light back into the optical...
6136399 Decorative article for garment  
Decoration for a garment, comprising individual elements (1) of glass or synthetic material, whose back is provided with an adhesive means (2) bounded by a flat adhesive surface (3), wherein each...
6127020 Method of making wet retroreflective marking material  
A method of making a retroreflective marking material is provided, the method has the steps of: (a) providing an enclosed-lens retroreflective sheet having a top surface and a bottom surface and...
6074719 Multi-layer compositions having a fluoropolymer layer  
A multi-layer article comprises a fluoropolymer layer comprising interpolymerized units derived from vinylidene fluoride, and a melt-processable, substantially non-fluorinated polymer layer...
5926315 Shelf label reader  
A clear, plexiglass label reader has a connector for securement to a price slot of a retail shelf. The label reader has an extension with a cross member unitarily formed at its outer end. The cross...
5917652 Durable retroreflective elements  
All-ceramic retroreflective elements which may be used in pavement markings comprising an opacified ceramic core and ceramic optical elements partially embedded into the core.
5910858 Retroreflective sheeting with coated back surface  
The present invention provides a retroreflective sheeting having a front surface and a back surface, the retroreflective sheeting retroreflecting light entering through the front surface, wherein...
5882771 Conformable embossable retroreflective sheeting  
The present invention provides a retroreflective sheeting including: optical elements arranged in substantially a monolayer; a spacing layer in which the optical elements are at least partially...
5822120 Layered retroreflective elements  
A retroreflective element which may be used in pavement markings comprising a core having (a) a central layer having first and second major surfaces and at least one vertical surface, (b) a barrier...
5822119 Retroreflective sheeting material, a method of its production and its use  
A retroreflective sheeting material comprising at least one retroreflective optical system (200, 300, 400) consisting of an entrance transmission optical element (201, 301) for receiving and...
5784198 Encapsulated lens retroreflective sheeting having thermoplastic polyurethane bonding layer  
An encapsulated lens retroreflective sheeting that has a bonding layer that consists essentially of a thermoplastic polyurethane resin that has a softening point of 70° C. to 200° C. The bonding...
5759671 Ultraviolet luminescent retroreflective sheeting  
Ultraviolet luminescent retroreflective sheeting includes a retroreflective portion containing retroreflective elements and an ultraviolet luminescent portion to facilitate nighttime viewing by...
5614286 Conformable cube corner retroreflective sheeting  
Conformable cube corner retroreflective sheetings comprising a plurality of discrete cube corner segments which are conformably bonded together, each cube corner segment comprising a plastic body...
5605761 Articles exhibiting durable color containing a polycarbonate, a fluorescent dye and an amine light stabilizer  
An article exhibiting durable fluorescent properties comprising a polymeric matrix, dye, and hindered amine light stabilizer, wherein the polymeric matrix is comprised of polycarbonate and the dye...
5585164 Dual groove set retroreflective cube corner article and method of manufacture  
A retroreflective cube corner article which is a replica of a directly machined substrate in which a plurality of geometric structures including cube corner elements are machined in the substrate...
5557461 Omnidirectional retro-reflective roadway marker and the like  
A novel roadway or similar marker strip having preferably retro-reflective-beaded protuberances in a critical "herringbone"-like pattern that provides a surprising degree of azimuthal uniform...
5552933 Visible light reflectors and process of making same  
Light reflective buttons according to this invention are made from a plurality of fused strata, the top stratum having an exposed reflective area, preferably of pleochroic or dichroic material in a...
5493323 Color images having multiple separations with minimally overlapping halftone dots  
Halftone screens are generated for each separation in accordance with the goal of avoiding overlapping whenever possible. Initially, the black separation is halftoned, generating a dot with a...
5357371 Laser retroreflector array having cat-eye retroreflectors  
A laser retroreflector array is provided having an array of cat-eye retroreflectors each with an image forming objective through which the laser beam passes and a partial mirror at the focal plane...
5319399 Optical alignment device  
An optical device for aligning an instrument so that active zones in the instrument are the same distance from the plane of a remote object comprising a lens attached to the instrument, the lens...
5268789 Retroreflective assembly and process for making same  
Retroreflective assembly comprising: a) a transparent globule having a first, uncoated part-spherical surface portion for reception of incident light; a second, substantially flat surface...
5237449 Biased lenticular sign system  
A highway sign includes a reflective back surface and a biased lenticular lens front surface for reflecting light back in the direction of the original light source. The reflective back surface...
5237164 Card having retroreflective bar codes and a magnetic stripe  
A card having retroreflective bar codes is comprised of a card substrate on which there are provided a first information recording portion formed of a retroreflective material portion of a...
Matches 1 - 50 out of 144 1 2 3 >