CCFL illuminated device

• US 6,135,620 A
• Filed: 04/10/1996
• Issued: 10/24/2000
• Est. Priority Date: 04/10/1996
• Status: Expired due to Term

• Current Assignee: BJI Energy Solutions LLC
• Original Assignee: RE-Energy, Inc.
• Inventors: Marsh, Brent
• Primary Examiner(s): GREEN, BRIAN
• Application Number:
  US08/630,361
• Time in Patent Office: 1,658 Days
• Field of Search: 362/222, 362/223, 362/225, 362/255, 362/367, 362/377, 313/318.02, 313/491, 313/550, 313/17, 313/25, 313/518, 313/634, 40/570
• US Class Current: 362/377
• CPC Class Codes: F21L 4/005 the device being a pocket lamp F21L4/022, F21L4/045, F21L4/085 take precedence
• CPC Class Codes: F21V 15/015 Devices for covering joints between adjacent lighting devices; End coverings
• CPC Class Codes: F21V 21/02 Wall, ceiling, or floor bases; Fixing pendants or arms to the bases F21V21/08 takes precedence; bases for movable standing lamps F21V21/06
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21W 2111/02 for roads, paths or the like
• CPC Class Codes: F21W 2131/10 Outdoor lighting
• CPC Class Codes: F21Y 2103/00 Elongate light sources, e.g. fluorescent tubes
• CPC Class Codes: G09F 13/00 Illuminated signs; Luminous advertising G09F9/00, G09F11/00 take precedence; control of displays in general using static means to present variable information G09G
• CPC Class Codes: G09F 13/04 Signs, boards or panels, illuminated from behind the insignia
• CPC Class Codes: G09F 13/0472 Traffic signs
• CPC Class Codes: G09F 13/18 Edge-illuminated signs
• CPC Class Codes: G09F 2013/05 indicating exit way or orientation

Abstract

Cold cathode fluorescent lamps (CCFLs), associated devices and methods of use, and more specifically, exit signs, traffic signals, informational and other signage and lighting devices utilizing CCFL-type devices in conjunction with novel connectors, mounting brackets, housings, associated electronics and other accessories to provide new and unique lighting devices and methods of using them, all of which offer significant savings in cost, operating expense, power consumption and retrofit convenience.

Claims

1. A cold cathode fluorescent lamp light assembly, the light assembly having at least a first end, at least a second end and a central axis, the light assembly comprising:

a miniature elongated cold cathode fluorescent lamp, the cold cathode fluorescent lamp extending between the first end and the second end of the light assembly parallel to the central axis, the cold cathode fluorescent lamp having a first electrode adjacent the first end and a second electrode adjacent the second end, the cold cathode fluorescent lamp further having a narrow, tubular lamp wall extending between the two electrodes;

at least one essentially transparent, elongated outer protective panel, the at least one outer protective panel defining a chamber for retaining and protecting the cold cathode fluorescent lamp, the cold cathode fluorescent lamp disposed within the chamber;

two metallic end caps, one at each end of the light assembly, one of the metallic end caps electrically coupled to the first electrode and the other metallic end cap electrically coupled to the second electrode, the metallic end caps directly engaging the at least one outer protective panel; and

a first bushing disposed between the cold cathode fluorescent lamp and the at least one outer protective panel adjacent the first end, and a second bushing disposed between the cold cathode fluorescent lamp and the at least one outer protective panel adjacent the second end, the at least one outer protective panel and the metallic end caps forming a housing, the bushings being completely enclosed within the housing, whereby the light assembly can be conveniently installed in a suitable housing having an electrically conductive releasable light assembly mounting means.

2. The light assembly of claim 1 wherein the at least one protective panel is essentially rectangular.

3. The light assembly of claim 1 wherein the at least one protective panel comprises a single essentially tubular protective panel.

4. The light assembly of claim 1 wherein the at least one protective panel is rigid.

5. The light assembly of claim 1 wherein the at least one protective panel is rigid plastic.