Replacement illumination device for a miniature flashlight bulb

• US 7,699,494 B2
• Filed: 10/02/2008
• Issued: 04/20/2010
• Est. Priority Date: 04/08/2004
• Status: Active Grant

• Current Assignee: LEDVANCE LLC (MLS Co. Ltd.)
• Original Assignee: TerraLUX Incorporated
• Inventors: Catalano, Anthony, Harrison, Daniel
• Primary Examiner(s): Truong; Bao Q
• Application Number:
  US12/244,645
• Publication Number:
  US 20090034262A1
• Time in Patent Office: 565 Days
• Field of Search: 362/157, 362/184, 362194-208, 362/253, 362/800, 362/294
• US Class Current: 362/202
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21K 9/238 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21L 4/02 characterised by the provision of two or more light sources
• CPC Class Codes: F21L 4/027 the light sources being a LED
• CPC Class Codes: F21V 13/04 the elements being reflectors and refractors for vehicle rear lights F21S43/40
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 5/048 the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
• CPC Class Codes: F21V 7/06 with parabolic curvature
• CPC Class Codes: F21V 7/24 characterised by the material
• CPC Class Codes: F21V 7/28 characterised by coatings
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/3725 Switched mode power supply [SMPS]
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

Disclosed is a method and apparatus for providing a solid state light emitter and driving circuitry integrated into a component module that will retrofit common incandescent light bulb applications.

Claims

1. In an incandescent light projecting illumination system for producing light using electrical energy, including:

an incandescent lamp having a base with a configuration that is used for connecting with a power source to receive electrical energy from the power source to produce light; and

a lens positioned for directing light from the incandescent lamp out of the illumination system when the incandescent lamp is connected with the power source, the lens at least partially surrounding the incandescent lamp when the incandescent lamp is positioned for directing light, a method comprising;

configuring a component module with a module base that has a shape that is substantially the same as the incandescent lamp base to allow the light module to connect to the power source in place of the incandescent lamp, the light module having a driving circuit at least for converting the electrical energy from the power source to a converted electrical energy that is in a different form than the electrical energy provided by the power source, and having a solid state light emitter that produces light in response to the converted electrical energy;

positioning the solid state light emitter in the solid state light module where at least some light produced by the solid state light emitter is directed out of the illumination system by the lens when the module base is connected with the power source.

2. The method as defined in claim 1 further comprising:

inserting the solid state light emitter into the lens in an end of the lens that is substantially opposite from an end of the lens such that at least some of the light is directed out of the illumination system by the lens.

3. The method as defined in claim 2, including configuring the component module to include a heat sink device that is attached with the solid state light emitter for conducting heat away from the solid state light emitter and inserting the solid state light emitter into the lens on heat sink device.

4. The method as defined in claim 1, wherein the lens is a first lens, the method further comprising:

replacing the first lens with a second, different lens that is arranged to cooperate with the solid state light emitter to direct more of the light from the solid state light emitter out of the illumination system than the first lens.

5. The method as defined in claim 1, wherein the lens is a first lens, the method further comprising:

replacing the first lens with a second, different lens that has a dimension that is shorter than a dimension of the first lens in a way which creates space for the driving circuit.