"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 8112921 | Sign and method for lighting A sign comprising a surface having a display, and a plurality of sources of visible light. The sources of visible light are oriented to illuminate at least a portion of the display, and include solid state light emitters and/or luminescent materials. Line segments d... | 02/14/2012 |
| 7406785 | Display device A display device selectively provides a first and second displays. A first light source emits first light, and a second light source emits second light having peak wavelength different from the first light, and a translucent sheet hit selectively by one of the first... | 08/05/2008 |
| 7374311 | Optical integrating chamber lighting using multiple color sources for luminous applications A system provides light of selectable spectral characteristic (e.g. a selectable color combination of light), for luminous applications such as signage and indicator lights. An optical integrating cavity combines energy of different wavelengths from different source... | 05/20/2008 |
| 7114840 | Exit sign illuminated by selective color LEDs An exit sign comprising a housing and a plurality of red and green color LEDs having the capability of being selectively activated to produce either red light or green light. The plurality of LEDs are mounted in a mutual lighting association in the housing. A switch... | 10/03/2006 |
| 7070290 | Input device An input device allowing the user to quickly differentiate between the input states is provided. The input device includes a cap, a first light source, a second light source and a control module. The first light source radiates a first light of a first color and the... | 07/04/2006 |
| 7066633 | Illuminated displays for alphanumeric and special characters An illuminated display is disclosed which allows characters to be displayed with near type-set like appearance. This is accomplished by using an appropriately formed and placed rib to connect the optically opaque inner member with the optically opaque base. ... | 06/27/2006 |
| 7047679 | Molded sign facing plate A mold for stepwise molding, using two different plastics, signage composed of a plurality of symbols surrounded by a continuous matrix including a first mold member having a first cavity defining surface including at least one first gate for admitting a first plast... | 05/23/2006 |
| 6870655 | Rearview mirror with display A mirror includes a housing, a mirror subassembly including a reflector layer with a portion defining an opening, and an indicia panel covering the opening and configured to form a visual display. At least one light source is positioned in the housing to pass light ... | 03/22/2005 |
| 6843010 | Sign with photo-luminescent and current-generated lighting A light-conductive and transparent front panel 12 is mounted in a frame 11. One or more etched characters 22 are formed on a rear surface 17 of the front panel 12, and one or more photo-luminescent characters 16 is/are dispo... | 01/18/2005 |
| 6722066 | Single and multiple illuminated images Disclosed is an apparatus for displaying at least one image by applying the image to a transparent substrate and portraying the image using one or more colored translucent substances limited to specific wavelengths of the visible light spectrum substantially matchin... | 04/20/2004 |
| 6711841 | Gas discharge tube cover A display device has a support, a tubular light source, and a cover. The light source is interconnected to the support, and the cover is placed over the light source. The cover is an arc-shaped partially translucent elongated member. The cover is colored to create a... | 03/30/2004 |
| 6685339 | Sparkle light bulb with controllable memory function The specification and drawings describe and show one embodiment of the present invention in the form of a sparkle light bulb with a plurality of different colored LED bulbs controlled by a circuit that selectively operates the LED bulbs in color wash mode... | 02/03/2004 |
| 6584714 | Fluorescent, structured shaped bodies Optical display containing one or more shaped articles and a light source. The shaped articles consist of a transparent or semitransparent plastic. The plastic contains one or more fluorescent substances. One or more light sources are arranged in such a w... | 07/01/2003 |
| 6478450 | Lighting system A light system, including a channel sign having a cover, walls and a bottom; a power source; a wire harness coupled to the power source; a flexible conductor strip coupled to the wire harness, the flexible conductor strip defining solder pad openings and ... | 11/12/2002 |
| 6341440 | Multi-function signboard A multi-function signboard includes a frame seat, a light seat, a light diffusion strip, a display board, a circuit board and a power source portion. The frame seat is a hollow light impermeable structure having a top portion that sinks downward to form a... | 01/29/2002 |
| 6312141 | Simulated fireworks lamp assembly The lamp assembly includes an emitting framework, a supporting ball, radiating levers and electronic-controller. The emitting framework is connected to the radiating levers via the supporting ball; the radiating levers to which explosion lamps and flashin... | 11/06/2001 |
| 6205691 | Neon-like display device A display device resembling neon tubing includes a transparent substrate with one or more elongate, continuous grooves formed in the substrate from a rear surface thereof. The groove is shaped to represent an informational image, such as a letter, symbol,... | 03/27/2001 |
| 5964051 | Internally illuminated sign An emergency sign includes a body having a top, two spaced apart sides, and a bottom defining a cavity, a front cover having an inside surface and cut out portions extending through the cover forming indica, a light source disposed within the cavity, and ... | 10/12/1999 |
| 5951150 | Display system A display system includes a plurality of color filters disposed between a plurality of light sources and a display panel. A first light source is energizeable to transmit light through a first color filter to illuminate the display panel with a first colo... | 09/14/1999 |
| 5794881 | Gel tensioning device A gel tensioning device maintains tension on a gel. The gel is wound between two rollers as the diameters of the rollers change by rolling and unrolling the gel, the amount of movement between the two rollers also changes. This difference in movement is a... | 08/18/1998 |
| 5794366 | Multiple segment electro-luminescent lighting arrangement A multiple segment electro-luminescent panel includes a backsheet on which are formed lower electrodes and connection lines for a plurality of discrete electro-luminescent light segments, the segments being made up of the lower electrodes, an optional die... | 08/18/1998 |
| 5787618 | Display apparatus that forms an optical illusion A display device having an interior area in which multiple images are displayed. The images arise from reflections of one or more externally or internally illuminated patterns located within the apparatus. The device creates an optical illusion whereby mu... | 08/04/1998 |
| 5778579 | Illuminated house number An interlocking display panel assembly comprises a pair of end elements for attachment to a supporting surface, at least one intermediate element having an indicia displaying surface locatable in an interlocking relationship between the end elements to fo... | 07/14/1998 |
| 5752337 | Multi-color electro-luminescent light strip and method of making same A multi-color illuminated panel is made up of a decorative frontsheet having windows cut therein and which may include decorative patterns printed thereon, a transparent supporting sheet, which may also have decorative printing thereon, and a pre-wired ba... | 05/19/1998 |
| 5715619 | Information display sign The disclosure herein describes an information displaying traffic sign which comprises a board, the front side of which is formed of dusters of LED devices. Visors are mounted to the front of the board, each visor being provided with an opening on its top... | 02/10/1998 |
| 5697175 | Low power drain illuminated sign An illuminated sign apparatus comprised of a reflector with dedicated cavities. Each letter and, optionally, background area, comprises a shaped cavity, illuminated indirectly by a plurality of near-point sources such as light-emitting diodes located in t... | 12/16/1997 |
| 5676456 | Indicator device An indicator device (14) having no moving parts includes a layered assembly (26) visible through an aperture (28) in a wall member (30), and a light source (30) positioned behind the layered assembly (26). The layered assembly (26) comprises a first trans... | 10/14/1997 |
| 5640792 | Lighting fixtures Lighting fixtures which feature indicia illuminated more uniformally and with greater brightness than in conventional lighting fixtures. LEDs which operate at a higher frequency/shorter wavelength, such as blue LEDs, emit light which causes the transforma... | 06/24/1997 |
| 5572817 | Multi-color electro-luminescent light strip and method of making same A multi-color illuminated panel is made up of a decorative frontsheet having windows cut therein and which may include decorative patterns printed thereon, a transparent supporting sheet, which may also have decorative printing thereon, and a pre-wired ba... | 11/12/1996 |
| 5450301 | Large scale display using leds A large scale display is made of several panels, each holding several display elements defined by LEDs. Preferably, each panel is arranged so that it can directly replace, both mechanically and electrically, a panel having incandescent bulbs as display el... | 09/12/1995 |
| 5448843 | Low power drain illuminated sign An illuminated sign apparatus comprised of a reflector with dedicated cavities which are formed by having the perimeter walls of each cavity conform precisely to each individual area of the sign desiring illumination, typically alphabetic characters and t... | 09/12/1995 |
| 5398170 | Optical-fiber display with intensive brightness An optical display apparatus includes a plurality of optical elements of acrylic material and an additive. Each optical element is shaped into cylindrical body with a first convex end and a second convex end to improve light receiving and transmitting eff... | 03/14/1995 |
| 4996632 | Multi-color illuminating system An arrangement and method for providing an elongated light source, such as for illuminating a sign or the like or for other display, which includes emitting light from an exterior light source into an inner tube having a portion lined with a high reflecta... | 02/26/1991 |
| 4970812 | Sheet type large display unit A sheet type large display unit includes a thin, flexible back sheet which is capable of being rolled up, the flexible back sheet having a plurality of electrical connections formed thereon in rows and columns; a plurality of display dot devices mounted o... | 11/20/1990 |
| 4864475 | Rainbow light box A colorful illuminated sign construction utilizing plurality of fluorescent lamp covered by colored transparent plastic thin wall tubing which is tightly enclosed by a diffusion panel sleeve so that neighboring colors can be melted each other on the diffu... | 09/05/1989 |
| 4641446 | Apparatus and method for producing a multisided, multicolored display An apparatus and method for producing a multisided, multicolored display which includes an enclosure with a plurality of translucent light scattering sides, top and bottom. A plurality of light sources are positioned in a spaced apart relationship to radi... | 02/10/1987 |
| 4629946 | Neon sign control device In a neon sign control device, a.c. power of an a.c. power source is connected to a neon transformer through an electronic switching element, a control signal from a control signal generator is supplied to a trigger circuit, the trigger circuit generates ... | 12/16/1986 |
| 4395835 | Liquid rainbow Devices comprising a transparent chamber containing three mutually immiscible liquids two of which are colored yellow, cyan, or magenta with an external region colored yellow, cyan, or magenta. Static, they display four or more colored regions. When defor... | 08/02/1983 |
| 4326150 | Cathode ray tube device for display system Each of picture elements on a color display system is formed of a triad of small monochromatic cathode ray tubes luminescing in red, green and blue in response to unfocused electron beams from respective electron guns and disposed in a cylindrical housing... | 04/20/1982 |
| 4271408 | Colored-light emitting display A plurality of cellular concave mirror surfaces are formed on a plate-like reflector unit, and a plurality of light-emitting diodes are disposed on these cellular concave mirror surfaces to jointly form a colored light source. Connection wirings to be con... | 06/02/1981 |