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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7284889 | Multi-lamp arrangement for optical systems A multi-lamp arrangement for optical systems includes plural lamps and a collective light guide, where each lamp is positioned such as to transmit light into respective light guides that are both optically connected to the collective light guide. In one embodiment, ... | 10/23/2007 |
| 7270458 | Curved light guide screen Provided is a curved light guide screen. A plurality of vertically aligned light guides are arranged into light guide magnifying layers. Spacers are disposed between any two adjacent light guide magnifying layers, proximate to the magnifying output ends, to position... | 09/18/2007 |
| 7239792 | Backlight unit having optical reflector A backlight unit is disclosed, in which the light is concentrated when the light is incident on a light-guiding plate so as to improve light efficiency and color realization ratio. The backlight unit includes a light source emitting light; and optical fiber surround... | 07/03/2007 |
| 7206483 | Method of forming a plurality of optical waveguide bundles A method of forming a plurality of optical waveguide bundles may include arranging a plurality of optical waveguides in a substantially coplanar configuration, constraining a distal portion of the plurality of optical waveguides with an initial distal constraint, an... | 04/17/2007 |
| 7190268 | Multi-angle viewable indicator apparatus An indicator apparatus facilitates visibility of one or more indicators from multiple angles. The apparatus includes a housing having an outer sidewall portion. The sidewall portion, for example, has a first side extending between two adjacent sides. One or more elo... | 03/13/2007 |
| 7146076 | Diffractive optical element and optical device using the same To provide a diffractive optical element that allows simplification of a manufacturing process and reduction in manufacturing costs. A diffractive optical element includes a first transparent substrate having a pair of transparent interdigitated electrodes facing ea... | 12/05/2006 |
| 7090386 | High density LED array A high-density LED array (10) capable of presenting a density of X LEDs/unit area has a first printed circuit board (12) having X/2 LEDs/area and X/2 apertures arrayed therewith. A second printed circuit board (22) is spaced from the first print... | 08/15/2006 |
| 7012542 | Multicolor function indicator light A multicolor function indicator light system is provided for an audio amplifier or similar electronic equipment. A sensor circuit monitors operation of the equipment. An indicator light device has a plurality of different color outputs. A control logic circuit recei... | 03/14/2006 |
| 7008829 | Alignment marks and manufacturing method for the same Alignment marks are formed when source and drain electrodes of a TFT are formed and thereon a thick red filter is formed. So that, the following respective color layers can be made thin on the red filter. Also, the exposure alignment laser permeates in an exposure s... | 03/07/2006 |
| 7009525 | Multi-angle viewable indicator apparatus An indicator apparatus facilitates visibility of one or more indicators from multiple angles. The apparatus includes a housing having an outer sidewall portion. The sidewall portion, for example, has a first side extending between two adjacent sides. One or more elo... | 03/07/2006 |
| 6971779 | Fiber optic and led fountain and method The lighted table top water fountain includes a water bowl, a superstructure rising from the water bowl with a view area, overhead, a pump supplied with electrical power, and a water delivery system to carry water from the water bowl through the superstructure above... | 12/06/2005 |
| 6909377 | Illumination device with light emitting diodes (LEDs), method of illumination and method for image recording with such an LED illumination device Illumination device with light emitting diodes (LED) and an LED support element on which a number of light pixels are arranged which emit light are disclosed. The light pixels each comprise a number of LEDs with emission wavelengths suitable for additive color mixin... | 06/21/2005 |
| 6767120 | Vehicle lamp A vehicle lamp that includes a light-emitting diode group formed by light-emitting diodes, which are disposed in a row with the irradiation direction directed toward the front of the lamp, and a light guiding plate, which is a transparent plate and is provided in fr... | 07/27/2004 |
| 6717525 | Tactical vectoring equipment a plurality of bi-color lights is mounted to the stern of a ship such as an aircraft carrier. The lights are arranged so that they are visible from an escort ship that is following the aircraft carrier while attempting to maintain a selected range and angular positi... | 04/06/2004 |
| 6693523 | Instrument cluster for motor vehicles with variable-color display In an instrument cluster for motor vehicles with a variable-color display, with which at least two different measured variables and/or operating states of the motor vehicle can be represented in analog and/or digital form, when a value of a measured varia... | 02/17/2004 |
| 6433702 | Flexible touch-sensitive matrix cathode ray tube A touch-sensitive matrix cathode ray tube for inputting and displaying data comprising a plurality of carbon nanotubes defining a plurality of pixels and a plurality of inputting elements, which consists of a dot matrix of each dot comprising a pixel and ... | 08/13/2002 |
| 6323781 | Electronically steerable light output viewing angles for traffic signals An electrically steerable solid state light apparatus is ideally suited for traffic controls. There exist many applications where a driver wishes limited viewing angles of traffic signals for safety, one example being left hand turn arrows. Current state ... | 11/27/2001 |
| 5979771 | Apparatus to verify position of electrical contacts within a sliding SIM mechanism A SIM contact position tester (100) for verifying the position of SIM card contacts (c1-c8). A printed wiring board (102) is provided with traces (A-D) which correspond to the contacts (c1-c8) of the SIM card reader connector (101) and are configured to m... | 11/09/1999 |
| 5874901 | Electronic equipment A display device of electronic equipment comprises a display portion attached to a movable unit having a light incident surface through which light enters and a tip end surface for emitting light which enters through the light incident surface. Light emit... | 02/23/1999 |
| 5818343 | Redundantly coded visual indication system This invention relates to a visual indication system for a field replaceable unit. The system includes two or more visual indicators on a face of the field replaceable unit (FRU), each indicator having a unique shape and being switchable between an on sta... | 10/06/1998 |
| 5563588 | Fiber optic traffic signal light system having a shutter control The system includes a high-intensity light source, a fiber optic conduit for transmitting a light-beam, and colored lenses, which emit red, yellow, and green light on fiber optic lines. Each traffic light has a shutter and control means for opening and cl... | 10/08/1996 |
| 5469186 | Display device with face plate responsive to multiple wave length beams A planar display device having a fast display reaction time and which can have a large screen size but which is thin and light in weight. A face plate is provided which contains fluorescent materials sensitive to three different wavelengths of invisible u... | 11/21/1995 |
| 5302965 | Display A display comprises a static unit (8) on which is mounted a rotating unit (7) driven by a motor (12). The rotating unit carries light emitting diodes (6) arranged as vertical columns which sweep around a cylindrical surface. The light emitting diodes (6) ... | 04/12/1994 |
| 5111183 | Third brake lamp employing optical fibers A third brake lamp employing optical fibers, in which when braking, a lamp emits light which goes through a color board rotarily driven by a motor, the light being focused on a grouped end of the optical fibers and conducted to the other end of the optica... | 05/05/1992 |
| 5068652 | Personal computer having condition indicator An angular section used for condition indication has a first indication hole and a second indication hole. An indication element and a printed circuit board provided with a light-emitting diode are arranged inside the angular section. The indication eleme... | 11/26/1991 |
| 5053765 | Light guide type display apparatus A light guide type display apparatus having a plurality of optical fibers which couple a light shutter which serves as an image forming device to a display screen. The plurality of optical fibers are effectively interlaced with each other so as to substan... | 10/01/1991 |
| 4794391 | Display matrix incorporating light-conducting fibers and light-occulting shutters A display matrix incorporates optical fibers to transmit light from light sources to the front of the display. An occulting device is associated with an assembly of fibers to modify the character of the light emitted to the front of the matrix, and a devi... | 12/27/1988 |
| 4280122 | Optical fibers Free parallel ends of optical fibers are spaced apart between a viewing window of the one way type disposed to provide an inner reflective surface and a rear facing mirror in back of which the fibers are bundled against which light of constantly changing ... | 07/21/1981 |
| 3962702 | Optical fiber display device In order to confine radiation from an optical fiber display device within a specified angle, a light-transmitting cone is provided either at the input or output end of a set of fibers. The cone can be solid or constructed of conical fibers. The input can ... | 06/08/1976 |
