In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 8177404 | Edge-lit back plate for a product rack An edge-lit back plate has two mounting frames coupled to opposite longitudinal side surfaces of a back plate including a laminate body with a reflector, a light guide and a diffuser. At least one light source assembly is located within a recess of each mounting fra... | 05/15/2012 |
| 8142061 | Light guides, illuminated articles and devices A side-emissive flexible polymeric light guide 1 is formed with a main body portion 6 and an integral attachment or anchoring element 7 that extends along its length for attaching the light guide 1 to an item. The attachment element 7 | 03/27/2012 |
| 8092061 | Pipe having light-redirecting channels A display assembly includes a light pipe having re-directing channels defined therein. When a light source is provided in a compartment of the light pipe, light admitted from the light source to the light pipe emits from a front face of the light pipe. In addition, ... | 01/10/2012 |
| 7802908 | Light guide module and a display device with the light guide module A light guide module and a display device with the light guide module are disclosed. The light guide module includes a rigid light guide film and a soft light guide film. The soft light guide film is pasted on the rigid light guide film. The soft light guide film ha... | 09/28/2010 |
| 7722237 | Illuminating device and assembly for illuminating enclosed spaces using the same A self-contained illuminating device for mounting on or in a closed container for illuminating both the enclosed space of the container and an area of the device which has an insignia or graphic imposed thereon, e.g. for advertising purposes. The device has a shell ... | 05/25/2010 |
| 7661862 | LCD display backlight using elongated illuminators A backlight apparatus for directing light toward a display panel and the resulting display device comprises an elongated illuminator that is disposed to direct light towards the display panel and a light diffusing element for uniformizing the light redirected from t... | 02/16/2010 |
| 7658529 | Surface light source device and liquid crystal display unit A surface light source device which illuminates a transmission-type liquid crystal display unit from the back surface includes P×Q surface light source units with individually controlled light sources. Each of the light sources includes a plurality of light-emittin... | 02/09/2010 |
| 7635214 | Modular system for luminous signals, particularly for road signals A modular system for illuminated signs, in particular for road signs, includes a plurality of bars that can be put together so as to form a frame structure. Each bar has a full body made of a material usable as light-guide, for example polycarbonate, substantially t... | 12/22/2009 |
| 7549783 | Efficient luminaire with directional side-light extraction Luminaire with directional side-light extraction comprises a light pipe with a light-carrying core, and with a light-extraction structure along a first longitudinal side of the luminaire, confined to a radial swath of the luminaire, along the longitudinal axis of th... | 06/23/2009 |
| 7434976 | Double-side display device with surface light source device having deflection patterns A double-side LCD having a surface light source device including a light guide plate and a light source facing one end face of the light guide plate. A plurality of deflection patterns are formed in a surface facing a light outgoing plane of the light guide plate, t... | 10/14/2008 |
| 7413330 | Backlight, backlight drive device and display device A proposed backlight is suitable for a large size liquid crystal display. A backlight 2 for illuminating a liquid crystal panel 3 from the rear, is formed by combining a plurality of backlight units 10, 10, . . . By providing a transparent acryl... | 08/19/2008 |
| 7369881 | Portable telephone and method of manufacturing the same A portable telephone includes a lower case and elastic sheet, an operation button portion component, and an operation button illuminating light source. Predetermined openings are formed in each of the lower case and elastic sheet to arrange a plurality of front surf... | 05/06/2008 |
| 7358302 | Composition for light-scattering film and light-scattering film using the same A composition for a light-scattering film contains fluorine-containing resin fine particles each including a copolymer of a first ethylenically unsaturated monomer containing fluorine with other ethylenically unsaturated monomer component, and having an average part... | 04/15/2008 |
| 7355573 | Residual image display In one of the present invention, a scanning control means and a generating means scan an image by part of light-emitting diodes among a plurality of light-emitting diodes, and generate two-dimensional residual image data enlarged from the image. A light-emission con... | 04/08/2008 |
| 7352951 | Method for displaying advertisements The present invention concerns a method for displaying advertisements including the steps of providing at least one non-transparent cable for transmitting light in which an end of each non-transparent cable is received by a receiving structure and transmitting light... | 04/01/2008 |
| 7350934 | Illuminated display system An illuminated display system is disclosed. The illuminated display system includes a circuit board with a front surface and a rear surface, and a plurality of light-passing holes. At least one light pipe is arranged on the rear surface of the circuit board. The at ... | 04/01/2008 |
| 7322715 | Self-light-up decorating lamp A self-light-up decorating lamp, comprises a decoration body; and an illumination device installed to the decoration body; the illumination device including a solar plate, a battery, an LED lamp set, a light-sensitive resistor, a switch and a LED lamp set; the solar... | 01/29/2008 |
| 7321301 | Wireless children's safety light in a security system A safety light is activated by a wireless signal from a control panel in a home security system is response to detection of a fire by the system. The safety light alerts rescuers of rooms in a home in which children may be located. The light may be window, door or w... | 01/22/2008 |
| 7318662 | Vehicular headlamp A vehicular head lamp includes a first light source module having a plurality of semiconductor light emitting elements and a second light source module connected in series to the first light source module, having semiconductor light emitting elements the number of w... | 01/15/2008 |
| 7315235 | First warning system for automotive vehicles A laser-based first warning system for vehicles is principally intended to be used when a vehicle is moving or about to move and can't be seen by oncoming drivers or pedestrians. The first warning system provides lasers on both sides, the front and back of the vehic... | 01/01/2008 |
| 7306356 | Illuminating angular display system An illuminated angular display system is provided. The illuminating angular display system includes a body, with an interior and an exterior, a plurality of support members extending through the body, and a light enhancing system within the interior. The body includ... | 12/11/2007 |
| 7303309 | Method and apparatus for backlit signs with light emitting diode modules A backlit sign with an LED module, with a housing that includes a top wall having a first length, a bottom wall having a second length, and a pair of opposing sidewalls each having a third length, wherein at least a portion of one of the sidewalls is translucent. On... | 12/04/2007 |
| 7300689 | Artificial grass for landscaping An artificial grass surface (10) suited for bordering a runway (12) of an airfield in order to reduce the presence of birds in the airfield. The artificial grass surface (10) includes a pile fabric (14) having a plurality of pile elements... | 11/27/2007 |
| 7281807 | Positionable projection display devices Described herein are devices that provide projection-type video output in a portable and flexible design. The design includes a projection chamber, a base, and an interface that permits relative positioning between the projection chamber and base. The base maintains... | 10/16/2007 |
| 7278748 | Display apparatus A display apparatus includes a display, a light source, and a light transmittance control means. The display displays a display design. The light source emits a light to illuminate the display. The light transmittance control means is disposed on at least one side o... | 10/09/2007 |
| 7277295 | Industrial ethernet switch According to one embodiment of the invention, an apparatus includes a housing having a front side and a bottom side adjacent the front side. The apparatus also includes a plurality of light generating devices each operable to generate light in response to operation ... | 10/02/2007 |
| 7277609 | Methods for manipulating light extraction from a light guide In one embodiment, a method of defining an array of extractor elements configured to extract light from a light guide, and thereby produce a desired spatial light pattern ET quantifying optical output at a plurality of locations across the light guide is ... | 10/02/2007 |
| 7273308 | Internal illumination based sign device An illuminating unit (28) is presented for use in an internally illuminated sign device (1) for displaying a pattern indicative of certain fixed information within an indicia area. The illuminating unit (28) comprises a light boundary structure ... | 09/25/2007 |
| 7273309 | Display device comprising a luminous element with an emission characteristic of controllable solid angle The invention relates to a display device including a luminous element and a light guide which has coupling locations and decoupling locations and transports a light signal that is emitted by the luminous element. The inventive luminous element has a radiation chara... | 09/25/2007 |
| 7270461 | Backlight unit and liquid crystal display utilizing the same A backlight unit for a liquid crystal display. The backlight unit in a liquid crystal display includes a light source having a plurality of basic cell structures. Each basic cell structure consists of three unique colors of first, second, and third light emitting di... | 09/18/2007 |
| 7270459 | Method and apparatus for directing light from a light source A light guide is configured to direct light from a light source. The light guide has an outer guide member and an inner guide member located in the outer guide member. A light passage is defined through the light guide between the inner and outer guide members. When... | 09/18/2007 |
| 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 |
| 7267468 | Fiber display device A fiber display device (200) includes a light source (21), a fiber binding (27) for transmitting light beams from the light source and a brightness modulating system (29) for modulating the transmission of the light beams. The fiber bindi... | 09/11/2007 |
| 7267467 | Linear light source for enhancing uniformity of beaming light within the beaming light's effective focal range A light guide assembly as a linear light source for enhancing the uniformity of beaming light within the beaming light's effective focal range comprising a light guide bar connected to a light source assembly and a reflective housing encasing the light guide bar. On... | 09/11/2007 |
| 7237939 | Backlight assembly and liquid crystal display apparatus using the same A backlight assembly includes a light guide plate for emitting a light in two directions and a brightness control member for controlling the brightness ratio of the light emitting in the two directions. An LCD apparatus including first and second LCD panels, display... | 07/03/2007 |
| 7234892 | Road marking system A road-marking system comprising at least a first (1) and a second road marking unit (2), each having an emission surface (10; 20), the first unit comprising a first light source (21, 21′ . . . ) and the second unit comprising a second ... | 06/26/2007 |
| 7232968 | Illuminated in-line controller This portable device relates to an in-line illuminated switch. The switch has a soft glowing light which is visible in a darkened room. Elderly people remove their eyeglasses when resting, and the soft glowing light locates the switch when light is required at bedsi... | 06/19/2007 |
| 7229203 | Light pipe containing material The present invention relates to an article of manufacture for detecting motion that includes a substrate with a plurality of volumes of material, where each volume is capable of transmitting light from one location on a surface of the substrate to a second location... | 06/12/2007 |
| 7229571 | Phosphor for white LED and a white LED An object of the present invention is to provide fluorescence showing a peak wavelength of excited spectrum within the wavelength range of from 350 to 500 nm and suitable for a white LED emitting yellow light, and a white LED comprising this fluorescence. This objec... | 06/12/2007 |
| 7226195 | Cold-cathode fluorescent lamp assembly for lighting applications A compact and cost-efficient lamp assembly includes cold-cathode fluorescent lamps in a variety of edge-lit display sign applications specifically, in edge-lit emergency lighting signs. The lamp assembly includes in one self-contained module a lower housing unit and... | 06/05/2007 |