IP Library Granted Patent US 7,172,314
Granted Patent B2
US 7,172,314 · App. 10/901,026 · Granted Feb 6, 2007

Solid state electric light bulb

Assignee: Plastic Inventions & Patents, LLC
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Quick Facts
Patent No.
US 7,172,314
App. No.
10/901,026
Granted
Feb 6, 2007
Kind
B2
Abstract

A solid state light bulb for attachment to a lamp socket. The light bulb uses a number of super bright LEDs or color LEDs mounted within a hollow housing to replace a standard bulb such as a 60 Watt bulb. A stepped, reverse conical interior wall distributes and diffuses the light to project the appearance of a normal bulb. An upper lens of the housing may be removable to form a spot light effect.

Claims (53)

1. A solid state light bulb mountable on a household lamp socket, comprising:

a bulb socket for electrically connecting said solid state light bulb to the household lamp socket;

a base having at least one light emitting diode (“LED”) electrically connected to said bulb socket;

a diffuser surrounding at least a portion of said at least one LED for diffusing light from said LEDs;

said diffuser having a translucent outer wall and a substantially conical inner wall; and

said conical inner wall having a plurality of stepped, concentric rings forming said conical inner wall, each said concentric ring having an outer face angled to reflect light from said at least one LED substantially radially outward from said concentric ring;

an end cap attached at a distal end of said diffuser from said base for defining a light passage way within said inner conical wall;

wherein said end cap is a lens for focusing light in said light passage way to a remote location.

2. The solid state light bulb of claim 1 , further comprising:

a converter for converting AC current of the household lamp socket to DC prior to powering said at least one LED;

a step down transformer for converting the voltage of the household lamp socket to drive said at least one LED; and

a central housing for housing said transformer and said converter.

3. The solid state light bulb of claim 1 , wherein said substantially conical inner wall extending the entire length of the diffuser from the center of said base to said distal end of the diffuser.

4. A solid state light bulb mountable on a household lamp socket, comprising:

a bulb socket for electrically connecting said solid state light bulb to the household lamp socket;

a base having at least one light emitting diode (“LED”) electrically connected to said bulb socket;

a diffuser surrounding at least a portion of said at least one LED for diffusing light from said LEDs;

said diffuser having a translucent outer wall and a substantially conical inner wall; and

said stepped inner wall having a plurality of stepped, concentric rings forming said conical inner wall, each said concentric ring having an outer face angled to reflect light from said at least one LED substantially radially outward from said concentric ring;

wherein said end cap is a diffuser cap for diffusing axially directed light from said LED outwardly to provide uniform lighting throughout the illuminated portion of said solid state bulb.

5. A solid state light bulb mountable on a household lamp socket, comprising:

a bulb socket for electrically connecting said solid state light bulb to the household lamp socket;

a plurality of light emitting diodes (“LEDs”) electrically connected to said bulb socket;

a diffuser surrounding at least a portion of said LEDs for diffusing light from said LEDs;

said diffuser having a translucent outer wall and defining a substantially conical inner wall extending the entire length of the diffuser;

an end cap attached at a distal end of said diffuser from said base for defining a light passage way within said inner conical wall.

wherein said end cap is a lens for focusing light in said light passage way to a remote location.

6. The solid state light bulb of claim 5 , further comprising:

a converter for converting AC current of the household lamp socket to DC prior to powering said at least one LED;

a step down transformer for converting the voltage of the household lamp socket to drive said at least one LED; and

a central housing for housing said transformer and said converter.

7. The solid state light bulb of claim 5 , wherein said conical inner wall has a plurality of stepped, concentric rings forming said conical inner wall, each said concentric ring has an outer face angled to reflect light from said at least one LED substantially radially outward from said concentric ring.

8. A solid state light bulb mountable on a household lamp socket, comprising:

a bulb socket for electrically connecting said solid state light bulb to the household lamp socket;

a plurality of light emitting diodes (“LEDs”) electrically connected to said bulb socket;

a diffuser surrounding at least a portion of said LEDs for diffusing light from said LEDs;

said diffuser having a translucent outer wall and defining a substantially conical inner wall extending the entire length of the diffuser;

an end cap attached to the distal end of said diffuser from said base for defining a light passage way within said inner conical wall.

wherein said end cap is a diffuser cap for diffusing axially directed light from said LED outwardly to provide uniform lighting throughout the illuminated portion of said solid state bulb.

9. A solid state light bulb mountable on a household lamp socket, comprising:

a bulb socket for electrically connecting said solid state light bulb to the household lamp socket;

a plurality of light emitting diodes (“LEDs”) electrically connected to said bulb socket;

a diffuser surrounding at least a portion of said LEDs for diffusing light from said LEDs;

said diffuser having a translucent outer wall and a substantially conical inner wall defining an interior light passage way; and

an end cap attached to said diffuser and enclosing said interior light passage way;

wherein said end cap is removable for focusing non-diffused light from the bulb on a remote location.

10. The solid state light bulb of claim 9 , further comprising:

a converter for converting AC current of the household lamp socket to DC prior to powering said at least one LED;

a step down transformer for converting the voltage of the household lamp socket to drive said at least one LED; and

a central housing for housing said transformer and said converter.

11. The solid state light bulb of claim 9 , wherein said substantially conical inner wall extending the entire length of the diffuser from the center of said base to said distal end of the diffuser.

12. The solid state light bulb of claim 9 , wherein said end cap is a lens for focusing light in said light passage way to a remote location.

13. The solid state light bulb of claim 9 , wherein said end cap is a diffuser cap for diffusing axially directed light from said LED outwardly to provide uniform lighting throughout the illuminated portion of said solid state bulb.

Assignments (1)
AMENDED & RESTATED NOTICE OF SECURITY INTEREST Recorded Mar 13, 2024
From: TCI, LLC
To: HSBC BANK USA, NATIONAL ASSOCIATION
Reel/Frame 066795/0511 →
Continuity (3)
Provisional Application 6049044100 · Jul 29, 2003
Provisional Application 6049044500 · Jul 29, 2003
Related Publication 20050135098A1 · Jun 23, 2005