Led-based light bulb

a technology of led light bulbs and led filaments, which is applied in the direction of lighting and heating apparatus, semiconductor devices of light sources, lighting support devices, etc., can solve the problems of limited widespread use of led lighting systems, and reduced use of filaments. the effect of reducing the cost of light production

Inactive Publication Date: 2012-07-12
BOHLER CHRISTOPHER L +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables a scalable and energy-efficient LED lighting solution that maintains high reliability and versatility, providing a true replacement for incandescent bulbs with improved durability and energy efficiency, while mimicking traditional bulb aesthetics and performance.

Problems solved by technology

However, the incandescent filaments are fragile and tend to gradually degrade during lifetime of a bulb causing the useful light output generated by the filaments to decrease over time.
The increasing fragility of the filament with age eventually leads to breakage.
A widespread use of the LED lighting systems have been limited because the consumers are accustomed to seeing and purchasing the traditional bulb lights.
However, the single LED does not produce the light output of the same optical characteristics as each existing incandescent bulb lamp.
In addition, the LEDs emit highly directional light resulting in a narrow light angle and require different input power.

Method used

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Examples

Experimental program
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Embodiment Construction

[0017]With reference to FIGS. 1 and 2, a lighting system 10 includes one or more LEDs 12 which are positioned on a mounting platform 14, defining a light engine 16. Wire leads 18, 20 are provided for powering the LEDs 12. The LEDs 12 is one of inorganic and organic light emitting devices which emit light in a spectrum from UV to infrared. Variations in optical performance, viewing angles, and intensity levels are achieved by arranging the LEDs in different patterns. The lighting system 10 includes a light cover or enclosure 22. Preferably, the enclosure 22 is a traditional bulb-shaped enclosure. Optionally, the enclosure 22 is a custom built enclosure to provide non-uniform light output to create special visual effects. It is contemplated that the enclosure 22 can be spherical, elliptical, cylindrical, domed, squared, n-sided, or any other shape. Preferably, the enclosure 22 is built of light transparent or translucent materials, or a combination thereof. The enclosure 22 materials ...

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PUM

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Abstract

A light source (10) comprises a light engine (16), a base (24), a power conversion circuit (30) and an enclosure (22). The light engine (16) comprises at least one LED (12) disposed on a platform (14). The platform (14) is adapted to directly mate with the base (24) which a standard incandescent bulb light base. Phosphor (44) receives the light generated by the at least one LED (12) and converts it to visible light. The enclosure (22) has a shape of a standard incandescent lamp.

Description

BACKGROUND[0001]The present application relates to the art of LED lighting systems. It finds particular application in the light packages traditionally employed in an incandescent light source and will be described with particular reference thereto. Those skilled in the art will appreciate the applicability of the present invention to the applications where a use of an LED light source in a traditional bulb light package can provide advantages such as increased durability, light output stability and energy savings.[0002]Typically, incandescent light bulb packages utilize a light source that includes an incandescent filament within a glass enclosure. However, the incandescent filaments are fragile and tend to gradually degrade during lifetime of a bulb causing the useful light output generated by the filaments to decrease over time. The increasing fragility of the filament with age eventually leads to breakage. Typical incandescent light bulbs have a mean life of 500 to 4,000 hours.[...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): F21V9/16F21V29/00F21V21/00F21K99/00
CPCB82Y10/00F21K9/135F21K9/52F21K9/56F21Y2101/02F21V29/63F21V3/00F21V29/02F21K9/1355F21V29/58F21Y2105/00F21K9/23F21K9/232F21K9/61F21K9/64F21Y2115/10F21V3/02F21V29/773F21Y2105/18F21V29/67F21V29/70
InventorBOHLER, CHRISTOPHER L.KOLODIN, BORISRADKOV, EMILAANEGOLA, SRINATH K.WEAVER, JR., STANTON E.PETROSKI, JAMES T.BROWN, ZENA
OwnerBOHLER CHRISTOPHER L