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Class Information
Number: 313/488
Name: Electric lamp and discharge devices > With luminescent solid or liquid material > With gaseous discharge medium > Phosphor on envelope wall > Aperture-type tube
Description: Subject matter wherein an aperture or discontinuity is provided in the fluorescent or phosphorescent layer or coating or wherein some other means is provided to permit or direct light from the interior of the envelope.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7336027 |
Plasma tube array and gas discharge tube |
Feb. 26, 2008 |
| 7119486 |
Re-entrant cavity fluorescent lamp system |
Oct. 10, 2006 |
| 6960874 |
Tubular discharge lamp with ignition aid |
Nov. 1, 2005 |
| 6953952 |
Semiconductor device and an optical device using the semiconductor device |
Oct. 11, 2005 |
| 6890087 |
Aperture fluorescent lamp, surface illuminator, manufacturing methods thereof, liquid crystal display device, and electronic device |
May. 10, 2005 |
| 6806647 |
Light source device with discontinuous electrode contact portions and liquid crystal display |
Oct. 19, 2004 |
| 6633117 |
Display device |
Oct. 14, 2003 |
| 6558031 |
Lighting system, in particular for motor vehicles, and method of generating a light beam of desired shape |
May. 6, 2003 |
| 6371627 |
Cold cathode tube having visible light reflecting layer and a light emission portion |
Apr. 16, 2002 |
| 6150758 |
Noble gas discharge lamp having external electrodes with first and second openings and a specified amount of fluorescent coating material |
Nov. 21, 2000 |
| 6051926 |
External electrode noble gas lamp with serrated/scalloped lengthwise electrodes |
Apr. 18, 2000 |
| 6034476 |
Noble gas discharge lamp |
Mar. 7, 2000 |
| 6018218 |
Fluorescent lamp with internal glass tube |
Jan. 25, 2000 |
| 5998921 |
Fluorescent lamp with coil shaped internal electrode |
Dec. 7, 1999 |
| 5801493 |
Electrodeless low pressure discharge lamp with improved heat transfer for soft magnetic core material |
Sep. 1, 1998 |
| 5645337 |
Apertured fluorescent illumination device for backlighting an image plane |
Jul. 8, 1997 |
| 5565685 |
Dual intensity ultraviolet lamp |
Oct. 15, 1996 |
| 5561345 |
Focusing and steering electrodes for electron sources |
Oct. 1, 1996 |
| 5552664 |
Fluorescent lamps with imprinted color logos and method of making same |
Sep. 3, 1996 |
| 5514932 |
Low-pressure mercury vapor discharge lamp with reflective layer having prescribed bimodal distribution of large and small particles |
May. 7, 1996 |
| RE35142 |
Fluorescent lamp having three electrodes for starting at low temperatures |
Jan. 9, 1996 |
| 5272406 |
Miniature low-wattage neon light source |
Dec. 21, 1993 |
| 5266866 |
Low pressure gas discharge lamp |
Nov. 30, 1993 |
| 5256935 |
Low pressure mercury vapor discharge lamp having cold cathode |
Oct. 26, 1993 |
| 5142191 |
Aperture fluorescent lamp with press seal configuration |
Aug. 25, 1992 |
| 5138223 |
Tubular fluorescent lamp with intermediate electrode |
Aug. 11, 1992 |
| 5136206 |
Low-pressure mercury vapor discharge lamp suitable for illuminating a color original |
Aug. 4, 1992 |
| 5134336 |
Fluorescent lamp having double-bore inner capillary tube |
Jul. 28, 1992 |
| 5081395 |
Fluorescent lamp having three electrodes for starting at low temperatures |
Jan. 14, 1992 |
| 5059860 |
Illuminating light source for color image recording device |
Oct. 22, 1991 |
| 5003220 |
Integral lamp for tri-color picture element |
Mar. 26, 1991 |
| 4924141 |
Aluminum oxide reflector layer for fluorescent lamps |
May. 8, 1990 |
| 4882520 |
Rare gas arc lamp having hot cathode |
Nov. 21, 1989 |
| 4871941 |
Gas discharge lamp with different film thicknesses |
Oct. 3, 1989 |
| 4864194 |
Electrodeless discharge lamp device |
Sep. 5, 1989 |
| 4797594 |
Reprographic aperture lamps having improved maintenance |
Jan. 10, 1989 |
| 4786841 |
Low-pressure arc discharge lamp having increased surface brightness |
Nov. 22, 1988 |
| 4704562 |
Electrodeless metal vapor discharge lamp with minimized electrical interference |
Nov. 3, 1987 |
| 4695763 |
Reflector type fluorescent lamp for optical apparatus |
Sep. 22, 1987 |
| 4661890 |
Lamp unit |
Apr. 28, 1987 |
| 4661746 |
Electrodeless low-pressure discharge lamp |
Apr. 28, 1987 |
| 4445068 |
Low-pressure mercury vapor discharge lamp with internal glass fibers |
Apr. 24, 1984 |
| 4363997 |
Fluorescent lamp having reflective layer |
Dec. 14, 1982 |
| 4336479 |
Fluorescent lamp having reflective layer and a method for fabricating the same |
Jun. 22, 1982 |
| 4329622 |
Low pressure gas discharge lamp with increased end illumination |
May. 11, 1982 |
| 4317066 |
Gaseous discharge lamp having novel electrode mountings |
Feb. 23, 1982 |
| 4255687 |
Low pressure mercury vapor discharge lamp |
Mar. 10, 1981 |
| 4251750 |
Fluorescent lamp for use in liquid analysis |
Feb. 17, 1981 |
| 4061946 |
Fluorescent lamp having zero back brightness |
Dec. 6, 1977 |
| 4018698 |
Cerium stabilized magnesium aluminum gallate phosphors |
Apr. 19, 1977 |
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