Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 7347570 | Multimedia presentation apparatus and method A multimedia presentation apparatus and method by which a presenter is freed from the requirement of having or providing or transporting a supporting computer system such as the notebook or laptop system by the incorporation of computing capability and an accessible... | 03/25/2008 |
| 7347563 | Apparatus for fixing a reflective or transmissive liquid-crystal display element to a prism member At least one exemplary embodiment is directed to a projection display apparatus configured to project an image on a projection plane, the image being formed using light from a light source by an image-forming element, is provided. The projection display apparatus in... | 03/25/2008 |
| 7347560 | Method and/or apparatus for projecting an image Methods, apparatuses and systems for projecting an image, such as a diffused image, are disclosed herein. ... | 03/25/2008 |
| 7344291 | Illuminating device and backlight device employing the illuminating device Disclosed is an illuminating device which, as a light source for a backlight device, mixes the colors of light rays of three prime colors radiated by light emitting diodes to emit white light. The illuminating device includes a first light source (22R) radiat... | 03/18/2008 |
| 7341351 | Aerial advertising device for the presentation of pictures that change over time The subject of the invention relates to an aerial advertising device for the presentation of pictures that change over time which contains an inflatable information-carrying body (90) that has a hollow internal space (92), a supporting structure (50... | 03/11/2008 |
| 7342723 | Projection lens and portable display device for gaming and other applications A portable projection device comprises a housing, a handle, and an optical engine. The optical engine comprises an illumination source, an imaging system, and a wide angle projection lens that includes a first lens group of negative refractive power, the first lens ... | 03/11/2008 |
| 7339735 | Polarization recovery system for projection displays A waveguide polarization recovery system both polarizes the input light energy for use with an LCD imager and converts the polarity of unusable light energy to add to the illumination of the LCD imager. The compact polarization recovery waveguide system generally in... | 03/04/2008 |
| 7339714 | Variable blazed grating based signal processing A light processing system includes an array of optical signal processing devices. The array of processing devices are operable to receive at least some of a first signal part and to modulate the first signal part based at least in part on a control signal received f... | 03/04/2008 |
| 7338175 | Front projection type multi-projection display A front projection type multi-projection display includes a plurality of projector units to modulate and project light from a light source based on image information, an image-capturing device disposed in a housing to capture predetermined regions of the projection ... | 03/04/2008 |
| 7338176 | Elevator installation with information representation on a shaft door An elevator installation includes an elevator car moved in an elevator shaft between floors in a building. A shaft door for closing the elevator shaft is arranged at each floor. A method for representing information on the shaft doors makes possible a qualitatively ... | 03/04/2008 |
| 7339596 | Projection plane color correction method of projector, projection plane color correction system of projector and program for projection plane color correction of projector By using a spectral reflectance of a projection plane or color information under a light source, which is stored in wall color storage means 4, matrix calculation means 5 calculates a conversion matrix, and mixing amounts R, G, B of primary colors of a... | 03/04/2008 |
| 7336685 | Laser irradiation apparatus, laser irradiation method, and method for manufacturing a semiconductor device YAG laser can simultaneously emit a plurality of laser beams having different wavelengths from each other. By simultaneously irradiating the laser beams having different wavelengths from each other to a same region of a non-single crystal semiconductor film, an inte... | 02/26/2008 |
| 7334901 | Low profile, large screen display using a rear projection array system Low-profile, large screen display using a rear projection array system using an array of micro projectors, each comprised of a micro-display device, several optical components, a red/green/blue light emitting diode light source, a light sensor for each color and pow... | 02/26/2008 |
| 7331677 | Projection type video display A system control circuit is provided with a table storing portion. In the table storing portion, a table for a positioned-on-a-floor mode and a hung-from-a-ceiling mode, a table for upwardly-positioned, and a table for downwardly-positioned are stored. On each table... | 02/19/2008 |
| 7331680 | Illumination unit and projection type image display apparatus employing the same An illumination unit with an improved color synthesis prism, which can synthesize light beams emitted from compact light sources, and a projection type image display apparatus employing the illumination unit. The illumination unit includes first, second, and third l... | 02/19/2008 |
| 7333130 | Apparatus and method of re-adjusting convergence of a projection TV A method and an apparatus of re-adjusting convergence of a projection TV are disclosed. The apparatus includes a display device on which an image is projected and at least one light-sensing element (101) being provided around the display device. The light-sen... | 02/19/2008 |
| 7325933 | Projection type video display apparatus A projection type video display apparatus in which a display device transmits light emitted from a light source to project a video written into the display device is characterized by comprising person detection means for detecting a person who exists within a projec... | 02/05/2008 |
| 7327408 | Illuminator that generates linearly polarized light for microdisplay based light engine A hollow sphere with a scattering (e.g., white diffusive) interior surface directs light input from at least one input light source to an exit. In one embodiment, an internal hot mirror and phosphor are positioned to intercept the input light on which visible light ... | 02/05/2008 |
| 7322706 | Device for adjusting light intensity for discharge lamp projectors The invention relates to a device for adjusting light intensity for discharge lamp projectors with an optical assembly that contains a spherical mirror and a discharge lamp, and a Fresnel lens provided in front of the lamp of the optical assembly. The device is char... | 01/29/2008 |
| 7324169 | Projection optical system, projection television, and method of manufacturing lens included in projection optical system Provided are a projection optical system, a projection television, and a method of manufacturing a lens included in the projection optical system. The projection optical system includes lenses for projecting color beams onto a screen. A color filter layer, absorbing... | 01/29/2008 |
| 7322704 | Frequency stabilized vertical extended cavity surface emitting lasers A vertical extended cavity surface emitting laser (VECSEL) includes intra-cavity frequency doubling. Conventional frequency control elements, such as etalons, are replaced with thin film interference filters or volume Bragg gratings. ... | 01/29/2008 |
| 7324186 | Lithographic apparatus and device manufacturing method An arrangement for adjusting the position on a substrate of a patterned beam generated by a light engine relative to the substrate. The arrangement moves an array of focusing elements, each of which focuses a portion of the patterned beam onto a point on the substra... | 01/29/2008 |
| 7320522 | Data processing apparatus and method and encoding device of same A data processing apparatus able to generate a motion vector using projection image data in a short time, wherein an access circuit stores vertical projection image data and horizontal projection image data of each macro block of frame data and reference image data ... | 01/22/2008 |
| 7320520 | Portable multimedia projection system A portable multimedia projection system includes a portable housing, a DVD player, a channel tuner, an image projection device, a controller and a remote control receiver. The image projection device externally projects images. The controller is electrically coupled... | 01/22/2008 |
| 7321354 | Microdisplay for portable communication systems The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a hand held communication display device. The system can employ an LED il... | 01/22/2008 |
| 7321607 | External optics and chamber support system A gas discharge laser and method of operating same is disclosed which may comprise a gas discharge laser chamber support structure comprising a first support arm attached to a mounting table; a gas discharge laser chamber slideably engaging the first support arm; an... | 01/22/2008 |
| 7318646 | System for projecting a virtual image within an observer's field of view A system for projecting a virtual image within an observer's field of view comprises a support element, a transparent element mounted on the support element and suitable for being placed in front of the observer's eyes, the transparent element comprising a first fac... | 01/15/2008 |
| 7319285 | Optical device, illumination apparatus using the device, and projector using the illumination apparatus An optical device which leads light beams emitted by a light source to a predetermined illumination area comprises first and second light leading members. The first light leading member includes a first incident surface configured to be entered the light beams emitt... | 01/15/2008 |
| 7319551 | Maskless optical interferometric lithography An optical device generated by interferometric lithography, in the form of a surface relief pattern that diffracts light, to be used mainly in optical security, produced by optical systems compliant with the Schimpflug and hinge Rules containing: two identical lense... | 01/15/2008 |
| 7318644 | Compact projection system including a light guide array An optical projection system comprises a light source, a substantially planar optical element array for receiving light emitted from the light source, and a display panel for selectively outputting light from the optical element array. The optical element array incl... | 01/15/2008 |
| 7316484 | Illuminator and projection image display employing it An illuminator comprising two light source sections (101, 102), a rod integrator (1), and a relay lens system (4) for introducing a light flux emitted from the rod integrator (1), wherein the rod integrator (1) is a columnar optica... | 01/08/2008 |
| 7316519 | Paving member A paving member (2) comprising a surface (4) for being walked on, an image (6) below the surface (4), and a source of light for illuminating the paving member (2), the paving member (2) being of such a material and construct... | 01/08/2008 |
| 7309134 | System and method for displaying projector system identification information A system and method of displaying identification information for a projector system are disclosed. The method includes projecting a display onto a viewing surface with the projector system, and projecting an identification image onto the viewing surface over at leas... | 12/18/2007 |
| 7309132 | Modular keypad assembly A modular keypad assembly for use with a projection device is provided. This modular keypad assembly may include a user input through which a user may operate the projection device. Such a modular keypad assembly may include a elastomer keypad, a keypad support plat... | 12/18/2007 |
| 7310072 | Portable communication display device A head-mounted display system displays information via a matrix display element mounted within a housing that is positioned relative to at least eye of a user. The display is connected to a video or information source such that the user can view information or image... | 12/18/2007 |
| 7309133 | Projector and pattern image display method The present invention relates to a projector that projects projection light on a projection object to display an image, including an image formation module that can form a predetermined pattern image for displaying on the projection object; a zoom lens that can chan... | 12/18/2007 |
| 7306343 | Image rotator One embodiment of an image rotator includes an image reversion structure that rotates an image by a predetermined number of degrees, and securement structure adapted to removably secure the image reversion structure on a projector. ... | 12/11/2007 |
| 7306342 | Notch-filter reflector A reflector includes a body that defines an optical surface. A reflective surface is disposed on the optical surface including a stack of dielectric layers defining at least one notch filter. ... | 12/11/2007 |
| 7306339 | Laser projection with object feature detection A laser projection system scans an output laser light beam onto an object to detect features. A high-sensitivity optical feedback system receives and detects a feedback beam of the output beam light diffusely reflected from the object. The feedback light and project... | 12/11/2007 |
| 7303282 | Multimedia display device A multimedia display device includes a docking station having speakers and a media drive, wherein the docking station is configured to structurally and communicatively couple an image projection device to the docking station. ... | 12/04/2007 |