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7276702 |
Light receiving device for model, model, and signal light detecting method for model
A light receiving device 7 includes a sensor 10 for outputting a signal correlating to incident light on a detection surface 10 a and a light receiving element 8 disposed in confrontation...
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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...
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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...
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7036944 |
Retrochromic articles
Retrochromic articles have a retrochromic pattern comprising first and second viewable retroreflective regions, wherein at least one viewable retroreflective region comprises a plurality of...
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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...
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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...
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6412957 |
Pavement marking article and method of producing
The pavement marking article comprises a substrate, a plurality of protrusions provided on the surface of the substrate, and first transparent microspheres having a refractive index of not less...
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6327095 |
Vehicle lamp and method for manufacturing the same
To provide a vehicle lamp having a high quality lens and a method for manufacturing the same and make it possible to reliably separate a pre-molded lens member while being securely held in the...
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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...
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5988822 |
Luminous retroreflective sheeting and method for making same
Luminous retroreflective sheetings have a transparent cover layer, an optical layer disposed beneath the cover layer, and a reflective layer. The optical layer includes a first polymer layer and a...
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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.
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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...
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5754337 |
Fluorescent dye blends
A fluorescent yellow article comprising polyolefin copolymer, perylene imide dye N,N'-bis(2,6-di-isopropylphenyl)-3,4:9,10-perylenebis(dicarb
oximide), and at least one yellow-green dye selected...
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5706133 |
Retroreflective signage articles, kits for producing same, and methods of making signage articles
Retroreflective signage articles comprise a colorant layer directly thermally transferred to a top layer of a reretroreflective sheeting, the top layer devoid of priming treatments and extraneous...
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5680033 |
Solar powered warning device
A solar energy powered flashing device includes a light-transmitting, dome-like cover inside which a high efficiency solar energy plate and a circuit board connected to the solar energy plate are...
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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...
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5468540 |
Retroreflective article comprising a transparent base sheet and nacreous pigment coating, method for making such a base sheet, and method for making a forming master
A retroreflective article comprising a transparent base sheet having first and second broad faces, the second face being substantially planar and the first face having an array of substantially...
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5436762 |
Glass for an optical signalling device, the glass being fitted with non-catadioptric elements
The invention relates to a glass for at least one signalling lamp, in particular for a motor vehicle. The glass includes a plurality of non-catadioptric elements that have the appearance of...
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5376431 |
Retroreflective microprism sheeting with silver/copper reflecting coating and method of making same
Retroreflective sheet material is produced by forming sheet material with closely spaced retroreflective formations on one face and depositing on this face silver and copper atoms having high...
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5299061 |
Pseudo-luminous panel, optical color filter therefor, and display element and device using the pseudo-luminous panel
A pseudo-luminous panel has an optical color filter and a reflecting film formed all over the back thereof. The surface of the optical color filter is formed by obliquely downward and upward...
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5254390 |
Plano-convex base sheet for retroreflective articles and method for making same
An article comprising a transparent plano-convex base sheet having first and second broad faces, the second face being substantially planar and the first face having an array of substantially...
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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...
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5171624 |
Retroreflective microprismatic material and method of making same
A microprism retroreflector material has a body portion with a planar front face and closely spaced microprisms extending thereacross in a plane spaced from and parallel to the front face. The...
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5035486 |
Optical imaging apparatus
An optical imaging apparatus according to the present invention comprises a flat multilens array having a number of lenses arranged in a row and a flat multiprism array having a number of prisms...
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4930870 |
Retro-reflectors
A retro-reflector system 20 suitable for a highway lane marker is moulded in one piece from a transparent plastic material and has a plurality of side by side curved "roof edge" reflectors 21 (only...
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4889409 |
Hemispherical retroreflector
A retroreflector comprising two hemispheres of differing radii. The spherical surface of the first hemisphere is disposed towards a radiation source and the second hemisphere is provided with a...
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4605232 |
Infrared radiation responsive target
Novel techniques for scattering infrared radiation are employed to form a diffuse retro-reflector suitable as a target for night viewing by an infrared responsive detector.
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4416510 |
Retroreflective structure and method of manufacturing the same
An improved retroreflective structure designed to be associated to a roadway pavement principally for improving nighttime visibility of traffing regulating signs and areas, formed from selectively...
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4406045 |
Warning reflector
A warning reflector construction is provided comprising a transparent plate having a rear surface opposite a light-entrance surface. The rear surface comprises torus surfaces arranged side-by-side...
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4340301 |
Retroreflector plate and a method for its manufacture
A retroreflector plate and a method for its manufacture are described. The retroreflector plates consist of a transparent plate with a reflective rear side, the front side of which comprises...
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4012115 |
Sawtooth shaped front screen
A transparent front projection screen is disclosed having a plurality of ridges on the back thereof interrupted by flat portions and a plurality of curved sawtooth shaped ridges on the front...
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3984175 |
Pavement marker
A pavement marker of the type including a shell-like body of light transmitting material, such as synthetic resin, having a reflective wall formed thereon, and which is filled with epoxy resin or...
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3972586 |
Roadway marker and reflector therefor
A roadway marker having a housing with a base for engagement with the surface of a roadway, and a reflective wall for reflecting light from vehicles on the roadway. The reflective wall has a...
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3965598 |
Identification device and method of making same
A stippled base sheet material with a coating thereon of color differing from the color of the base material is so constructed that when selected stipples are cut off, letters, numbers or other...
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3919031 |
Retroreflective film
A retroreflective film comprising a lamination of a first base layer having vacuum metallized hemispherical depressions on one surface thereof and a second layer having substantially hemispherical...
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3906650 |
Illuminating device
A device for directing light in a predetermined pattern, and including a light conductive medium bounded by two non-parallel surfaces arranged with respect to a light source and with respect to...
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3884554 |
Display sheet material and method
A display sheet material is provided which generates interference fringe patterns which appear to move to an observer upon relative movement of the sheet and the observer. In one form, lenticular...
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3877785 |
Reflective roadway marker
A reflective roadway marker includes a body member of internally dished-out construction and with an integral retroreflective optical system in opposite side walls of the body. The body and optical...
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3831023 |
ILLUMINATING DEVICE
A device for directing light in a predetermined pattern, and including a light conductive medium bounded by two non-parallel surfaces arranged with respect to a light source and with respect to...
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3827783 |
OPTICAL SHEET MATERIAL
New and improved structures are provided in transparent sheet materials capable of performing a variety of functions in optical systems. The sheet materials contain a plurality of lenses or lens...
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3551024 |
FLASHING RETRODIRECTIVE REFLECTOR
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3449158 |
METHOD OF MAKING A PHASED LENTICULAR COMPOSITE STRIP FOR OPTICAL EFFECTS
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3353897 |
Display devices
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3312006 |
Motion displays
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3311441 |
Reflector
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3274041 |
Method of making sheet material
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2951419 |
Reflective display device
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2907249 |
Lens for signal lights
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2799938 |
Evaluating device
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2779240 |
Reflective marker
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