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| Number | Title | Issue Date |
| 7284869 | Rear light viewing assembly and method A rear light viewing assembly and method includes a panel that has a top side and a bottom side. A magnet is attached to the bottom side of the panel. An arm is removably attached to and extends upwardly from the top side. The arm has an upper end and a lower end. A... | 10/23/2007 |
| 6568817 | Retroreflecting sheet having printed layer Retroreflective sheeting comprising at least a reflective element layer made up of a large number of reflective elements and a holding body layer and a surface protective layer provided on the reflective element layer, wherein a printed layer is provided ... | 05/27/2003 |
| 6452509 | Device and method for signalling at a runway The invention relates to a device and a method for supplying information to pilots, especially in poor visibility, about, for instance, the borders of a runway (1). Along the long sides of the runway and at its beginning and end, signal means (2, 5) are a... | 09/17/2002 |
| 6439728 | Multimirror stack for vertical integration of MEMS devices in two-position retroreflectors A retroreflector is provided with a substrate over which a moveable micromirror is formed. The moveable micromirror is adapted to be tilted into at least two distinct positions. A multimirror stack is also positioned on the substrate. The multimirror stac... | 08/27/2002 |
| 6293678 | System of visual retroreflective aircraft approach runway panels The present invention relates primarily to an aircraft approach and landing system using passive retroreflective panels strategically placed along both sides of a landing strip or runway. The retroreflective panels comprise pairs of color-coded orange pan... | 09/25/2001 |
| 6168876 | Backlighted fluorescent/retroreflective safety device An improved, "fail-safe" safety device comprising, in combination, a backlighted fluorescent film and a retroreflective sheet.... | 01/02/2001 |
| 6164782 | Self-contained lighted marking device A self-contained lighted marking device that is a directionally dependent line light source has a substantially transparent housing. The housing has a narrow cross-section, preferably rectangular in shape. A thin, flexible film having a smooth surface on ... | 12/26/2000 |
| 5889615 | Dual axis retroreflective articles Dual axis retroreflective articles and methods of using them are disclosed. The retroreflective articles may combine dual axis retroreflection with three axis retroreflection to provide a steady glow due to the three axis retroreflective portions of the a... | 03/30/1999 |
| 5864439 | Van light-reflecting display An added light display for alerting traffic passing left and right of a moving or parked van consisting of a light-reflecting strip advantageously positioned in a gap about the window which serves as a weather barrier compartment protecting the strip agai... | 01/26/1999 |
| 5818640 | Sign illumination system and method This relates to a system for and method of illuminating a sign, so that drivers and observers may easily recognize and read the sign and billboard. The apparatus employs an external illumination source that is easy to inspect and maintain. The illuminatio... | 10/06/1998 |
| 5644439 | Mounting equipment used for an object having a hollow portion of circular cross section A mounting equipment for mounting an object on a mount base component having a hollow portion of approximately circular cross section, which is less susceptible to damage and requires smaller number of parts, includes a expandable nut, a shaft portion to ... | 07/01/1997 |
| 5617247 | Light signaling device A method and apparatus is described for producing a signaling device which uses sunlight or moonlight to signal a target by retroreflecting light through a window provided on the light reflective material of a mirror. A specular light reflective material ... | 04/01/1997 |
| 5570230 | Retroreflector for laser geodesy with omnidirectional correction of speed aberrations A cube-corner retroreflector for laser telemetry corrects speed aberration δ and has three substantially orthogonal mirror surfaces defining three substantially orthogonal edges converging at an apex. Each edge is associated with the surface substantiall... | 10/29/1996 |
| 5528421 | Signal mirror A signal mirror includes an irradiation device for reflecting incident light by a same reflection function as a plane mirror and irradiating reflected light to an irradiation target; and an optical axis finding device including a sheet having at least a s... | 06/18/1996 |
| 5471348 | Directed reflection optical device An optical device having a transparent body and including two prism surfaces formed thereon. The composite structure exhibits two axis stability in that the angular relationship between the input beam and the output beam remains fixed for slight movement ... | 11/28/1995 |
| 5442870 | Reflective sign A retro-reflective sign is provided having a front face member attached to a back member. The face member has a plurality of cube corners disposed along its back surface. The sign can be of any shape or color and provides superior light reflection at nigh... | 08/22/1995 |
| 5335112 | Remote area landing system A remote area landing system combines retro reflective markers with a lighting system. The markers reflect light from a landing aircraft or helicopter. The preferred marker is aluminum with a polycarbonate cover layer. The lights are solar powered and are... | 08/02/1994 |
| 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 having a curved outer surface and a mirrored back surface. W... | 06/07/1994 |
| 5229882 | Colored retroreflective sheeting and method of making same A retroreflective material providing a visual coloration includes a body member with microprisms on its rear surface. Some of the microprisms have a retroreflective interface and the remainder have a colored non-reflective coating thereon. As a result, li... | 07/20/1993 |
| 5046818 | Signal reflector and optical system An optical system is provided for traffic signal devices. The optical system includes an illuminating source for emitting light; a prismatic reflector for receiving and reflecting the emitted light; and a lens for receiving and for redirecting the reflect... | 09/10/1991 |
| 4875291 | Rotating reflector prism and target In a device for use as a remote reflector in an electronic distance measuring instrument, a prism is mounted in the center of a two sided target, with both the prism and target being rotatable 360°, as a unit, about an elevational axis to provide bi-dire... | 10/24/1989 |
| 4811173 | Refractive apparatus for vehicles Reflective and refractive apparatuses are provided for reflecting or refracting light from the vehicle rear tail light so that it may readily be viewed by bystanders and through the use of the rear view mirror of the vehicle. The refractive apparatus incl... | 03/07/1989 |
| 4568182 | Optical system for determining the position of a cursor In an optical digitizer, a cursor is movable on a plane surface having coordinate axis. The cursor includes a source of light that is scanned across the coordinate system, and a detector receiving light from the angle to which the beam is instantaneously ... | 02/04/1986 |
| 4479699 | Wind driven rotatable reflector for vehicles A rotatable reflector which serves as a warnig device adapted to be mounted on the front area of a motorcycle to enable other vehicle operators, pedestrians, and the like, to more readily observe a motorcycle as it approaches. The reflector includes a rot... | 10/30/1984 |
| 4252409 | 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 toric surfaces arranged side-by-side and supporting an outermost reflective layer. The optical ... | 02/24/1981 |
| 4183622 | Solar beacon A self contained solar beacon for reflecting sunlight over a large number of widely scattered reflection paths. The beacon includes three reflector arrays secured to the outer ends of respective horizontal reflector shafts which extend radially from a cen... | 01/15/1980 |
| 4053233 | Retroreflectors A system is disclosed for detecting, locating and monitoring floating objects and other subject matter at sea on another body of water or in other location of difficult access. A floating unit contains several retroreflecting elements and is placed at a l... | 10/11/1977 |
| 4023888 | Flashing retroreflecting device A reflecting device providing a flashing reflection of light incident on the device toward an intended observer includes a converging Fresnel lens for receiving light directed onto the device and for focusing the light within the focal plane of the lens, ... | 05/17/1977 |
