Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8004172 | Semiconductor light emitting apparatus including elongated hollow wavelength conversion tubes and methods of assembling same A semiconductor light emitting apparatus includes an elongated hollow wavelength conversion tube that includes an elongated wavelength conversion tube wall having wavelength conversion material, such as phosphor, dispersed therein. A semiconductor light emitting dev... | 08/23/2011 |
| 7365887 | Image sensor unit An image sensor unit has an electric discharge light emitting lamp for producing an illumination beam. The lamp includes a first electrode and a second electrode facing each other and defining a discharge space between them along the longitudinal axis of the lamp. A... | 04/29/2008 |
| 7352122 | Compact fluorescent lamp with extended cavity tube This present invention relates to a fluorescent lamp and, in particular, a compact fluorescent lamp or an enveloped fluorescent lamp with high surface load using new cold-end technology. The present invention includes at least one lamp tube with a cathode, stem cap ... | 04/01/2008 |
| 7336027 | Plasma tube array and gas discharge tube A plasma tube array according to the present invention includes plural light emitting tubes that have fluorescent material layers inside and are mutually lined up in parallel. The plasma tube array includes pairs of display electrodes that are formed along the respe... | 02/26/2008 |
| 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 |
| 7325961 | Polarized light source device and back light module for liquid crystal display A polarized light source, has an illuminant for generating light having a transparent tube which is filled with mercury vapor and which has a fluorescent material disposed thereon; a reflective film surrounding the illuminant and having an opening for emitting the l... | 02/05/2008 |
| 7309454 | UV-emitting strontium borate phosphor with improved holdover stability A UV-emitting phosphor comprising SrB4O7:Eu phosphor particles that have been treated to yield a surface layer containing from greater than 0 to about 25 atomic percent aluminum. The holdover stability of the treated SrB4O7 | 12/18/2007 |
| 7303307 | Electrodeless lamp with incorporated reflector An electrodeless lamp (10a), wherein the lamp comprises a closed-loop, tubular lamp envelope (13) with parallel cylindrical glass tubes (14a 16a) containing an arc generating and sustaining medium, means (20... | 12/04/2007 |
| 7213946 | Backlight module of a directly lighting backlight device A backlight module of a directly lighting backlight device comprises a casing; at least one S shape lamp tube; a reflecting sheet positioned below the lamp tube; a guide plate; the reflecting sheet reflecting light from the lamp tube with a predetermined angle to a ... | 05/08/2007 |
| 7173254 | Compact germicidal lamp having multiple wavelengths A compact germicidal lamp having a plurality of adjacent parallel glass cylinders capable of transmitting different wavelengths of ultraviolet radiation connected by a perpendicular glass tube. A first glass cylinder made of a doped quartz material and capable of tr... | 02/06/2007 |
| 7119486 | Re-entrant cavity fluorescent lamp system An electrodeless fluorescent lamp (10) having a burner (20), a ballast housing (30) containing a ballast (40) and a screw base (50) for connection to a power supply. A reentrant cavity (60) is formed in the burner (20... | 10/10/2006 |
| 6975287 | Plasma color display screen with pixel matrix array A plasma color screen fitted with a carrier plate, a transparent front plate, a ribbed structure dividing the space between the carrier plate and the front plate into discharge cells filled with a gas, with one or more electrode arrays on the front plate and on the ... | 12/13/2005 |
| 6965193 | Red phosphors for use in high CRI fluorescent lamps Novel red emitting phosphors for use in fluorescent lamps resulting in superior color rendering index values compared to conventional red phosphors. Also disclosed is a fluorescent lamp including a phosphor layer comprising blends of one or more of a blue phosphor, ... | 11/15/2005 |
| 6960874 | Tubular discharge lamp with ignition aid A dielectric barrier discharge lamp (1) having a tubular discharge vessel (2) and a luminescent material layer on at least a part of the inner wall of the discharge vessel (2) and having elongate electrodes (3) is provided with a coating ... | 11/01/2005 |
| 6953952 | Semiconductor device and an optical device using the semiconductor device A semiconductor device comprising a semiconductor element and a support member having a recess for housing the semiconductor element is disclosed. The support member includes lead electrodes and a support part holding the lead electrodes so that a surface of tip por... | 10/11/2005 |
| 6921878 | Warmth-keeping structure of cold cathode lamp A warmth-keeping structure of cold cathode lamp comprises a cold cathode lamp, a soft electric heating component and two insulating components. The soft electric heating component is wound around the surface of the cold cathode lamp. Two ends of the soft electric he... | 07/26/2005 |
| 6906463 | UV-reflecting layer, lamp with such a layer, and method of providing such a layer on a lamp glass In an UV-reflecting layer for discharge lamps, the layer comprises at least 0.1% by weight of Al2O3 and at least 0.1% by weight of a material having a higher refractive index than Al2O3, so that as large a proportion of UV... | 06/14/2005 |
| 6890087 | Aperture fluorescent lamp, surface illuminator, manufacturing methods thereof, liquid crystal display device, and electronic device A relatively small-diameter aperture fluorescent lamp is manufactured easily with high yield and at low cost. An aperture portion is formed in a manner that a thread-like member is inserted into a glass tube having an ultraviolet ray reflection layer and a phosphor ... | 05/10/2005 |
| 6806647 | Light source device with discontinuous electrode contact portions and liquid crystal display A light source device includes at least one discharge tube, a discharge medium sealed inside the discharge tube, and first and second electrodes for exciting the discharge medium. The first electrode is arranged inside or outside the discharge tube, and the second e... | 10/19/2004 |
| 6633117 | Display device A display device is provided in which a structure of a display tube is simplified so as to achieve a cost reduction and electric connection to a driving circuit is made easy. In the display device including a group of display tubes arranged in parallel fo... | 10/14/2003 |
| 6558031 | Lighting system, in particular for motor vehicles, and method of generating a light beam of desired shape In a lighting system for motor vehicles, light from a HID or MPXL lamp is collected by a collector which surrounds the light source at least partly and is guided further to a separator of optical waveguide material, which separator forms a desired light b... | 05/06/2003 |
| 6371627 | Cold cathode tube having visible light reflecting layer and a light emission portion A cold cathode tube having a fluorescent material coated along the inner wall thereof and the tube being filled with a small amount of gas, characterized in that the inner wall of the tube is coated with a ultra-violet ray reflective film capable of refle... | 04/16/2002 |
| 6150758 | Noble gas discharge lamp having external electrodes with first and second openings and a specified amount of fluorescent coating material A noble gas discharge lamp of the present invention comprises an outer enclosure comprising a light emitting layer comprising at least one fluorescent substance, the light emitting layer formed therein and a pair of outer electrodes having tape shapes com... | 11/21/2000 |
| 6051926 | External electrode noble gas lamp with serrated/scalloped lengthwise electrodes A noble gas discharge lamp of the present invention comprises an outer enclosure comprising a light emitting layer formed therein, and a pair of outer electrodes having tape shapes comprising a metal, which are adhered to the entire length of the outside ... | 04/18/2000 |
| 6034476 | Noble gas discharge lamp A noble gas discharge lamp of the present invention comprises an outer enclosure comprising a light emitting layer formed therein, and a pair of outer electrodes having tape shapes comprise a metal, which are adhered to the entire length of the outside of... | 03/07/2000 |
| 6018218 | Fluorescent lamp with internal glass tube A fluorescent lamp (1) includes a tubular glass bulb (2), an internal electrode (5) within the tubular glass bulb (2), a fluorescent layer (4) formed on an inner surface of the glass bulb (2), an external electrode (3) provided on an outer surface of the ... | 01/25/2000 |
| 5998921 | Fluorescent lamp with coil shaped internal electrode A fluorescent lamp includes a tubular glass bulb, an internal electrode provided substantially along the central axis of the tubular glass bulb, a fluorescent layer provided on the inner surface of the tubular glass bulb, and an external electrode provide... | 12/07/1999 |
| 5801493 | Electrodeless low pressure discharge lamp with improved heat transfer for soft magnetic core material A discharge vessel (10) closed in a gastight manner has a cavity (11) enclosing a discharge space provided with an ionizable filling. A coil (20) with a winding (21) of an electric conductor and an assembly (30) of a heat conductor (31) and one or several... | 09/01/1998 |
| 5645337 | Apertured fluorescent illumination device for backlighting an image plane A backlighting unit for illuminating a planar display is provided, comprising an illumination source having a light emitting portion for emitting illumination toward the generally planar display, and a reflector for collecting the emitted illumination and... | 07/08/1997 |
| 5565685 | Dual intensity ultraviolet lamp A fluorescent lamp having multiple discrete zones with different levels of radiation intensity along its length has a tube with a fluorescent coating on the interior of the tube adapted to produce ultraviolet radiation of substantially uniform intensity. ... | 10/15/1996 |
| 5561345 | Focusing and steering electrodes for electron sources Apparatus and methods of focusing and to steering a group of electrons emitted from an electron source to a shield. In a preferred embodiment, the apparatus includes an electron source controlled by one or more voltages to emit electrons, a first electrod... | 10/01/1996 |
| 5552664 | Fluorescent lamps with imprinted color logos and method of making same A fluorescent lamp having a logo, design or graphic information formed thereon. The glass envelope of the lamp is provided internally thereof with a coating of pigmented layer superimposed with a layer of a reflective material and one or more layers of a ... | 09/03/1996 |
| 5514932 | Low-pressure mercury vapor discharge lamp with reflective layer having prescribed bimodal distribution of large and small particles A low-pressure mercury vapor discharge lamp having a discharge vessel which is sealed in a gastight manner and encloses a discharge space which contains a filling of mercury and rare gas and in which an electric discharge is maintained. A portion of a sur... | 05/07/1996 |
| 5272406 | Miniature low-wattage neon light source A source of red light includes a double-bore capillary tube having a pair of ends and a convoluted shape. A pair of electrodes is located at one end of the capillary tube and disposed within respective bores. An ionizable medium is enclosed within the cap... | 12/21/1993 |
| 5266866 | Low pressure gas discharge lamp A low pressure gas discharge lamp comprises an elongated tube filled with a discharge gas. An inner electrode is disposed in a first end portion of the tube and an outer electrode is formed on an outer surface of the tube. The outer electrode has a belt s... | 11/30/1993 |
| 5256935 | Low pressure mercury vapor discharge lamp having cold cathode A cold cathode mercury vapor discharge lamp includes a bulb, a support wire within the bulb, and a cathode electrode having a pair of V-shaped electrode portions mounted in spaced, end to end relationship along the support wire. The electrodes include ext... | 10/26/1993 |
| 5142191 | Aperture fluorescent lamp with press seal configuration A subminiature aperture of fluorescent lamp is fabricated with press seals to facilitate accurate orientation of the aperture relative to an optical system. Flat surfaces of the press seal are accurately aligned relative to the aperture during manufacturi... | 08/25/1992 |
| 5138223 | Tubular fluorescent lamp with intermediate electrode In a fluorescent lamp, a curved discharge path is constituted by a plurality of bulbs and a cap interconnecting end portions of the bulbs. Terminal electrodes are provided at end portions of the bulbs, which are situated at both ends of the discharge path... | 08/11/1992 |
| 5136206 | Low-pressure mercury vapor discharge lamp suitable for illuminating a color original Low-pressure mercury vapor discharge lamp with an emission spectrum according to a spectral energy distribution comprising the wavelength ranges 380-490 nm, 490-590 nm, and 590-700 nm, within which wavelength ranges mutually equal or substantially equal q... | 08/04/1992 |
| 5134336 | Fluorescent lamp having double-bore inner capillary tube A miniature, low-wattage fluorescent lamp includes a double-bore inner capillary tube having a pair of ends and a convoluted shape. The inner capillary tube is comprised of a vitreous material (e.g., quartz) which is capable of transmitting ultraviolet ra... | 07/28/1992 |
