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Light source with LEDs, light guide and reflector

Technology of a reflector, LED lamp, applied in the field of lighting

Pending Publication Date: 2012-01-18
OSRAM SYLVANIA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The base transfers heat away from the LED, but causes a traditional B10 retrofit lamp to look very different from a traditional B10 incandescent

Method used

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  • Light source with LEDs, light guide and reflector
  • Light source with LEDs, light guide and reflector
  • Light source with LEDs, light guide and reflector

Examples

Experimental program
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Embodiment Construction

[0020] figure 1 A component view of an LED lamp 100 according to embodiments disclosed herein is shown. LED lamp 100 includes LED 102 and light guide 200 . The light guide 200 is formed from a light pipe 107 having a lower portion 106 and an upper portion 108 and a reflector 112 . In some embodiments, LED 102 is a single light emitting diode mounted on a chip or other substrate material, while in other embodiments, LED 102 includes multiple light emitting diodes. As used throughout, the phrase "light emitting diode" or "LED" may include any type of solid state light reflector, such as, but not limited to, conventional LEDs, organic LEDs (OLEDs), and the like. In some embodiments, the light pipe 107 has a base 104 . The LED 102 is located within a recess 150 at the lower end 105 of the lower portion 106 of the light pipe 107 . The recess is preferably hemispherical to reduce reflection losses, but may be any suitable shape for housing the LED. In some embodiments, the LED ...

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PUM

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Abstract

An LED lamp including a light guide / light pipe, and a method of reflecting light using same, are disclosed. The LED lamp includes a transparent light pipe enclosed in an envelope, where the light pipe has a lower section and an upper section. The lamp also includes an LED in a recess at a lower end of the lower section, and a reflector formed by an indentation in an upper end of the upper section. The lower section may be a compound parabolic concentrator, and the upper section may be a tapered cylinder. The lower section of the light pipe collects light emitted from the LED, the upper section of the light pipe directs the collected light onto the reflector, and the reflector reflects the directed light in a radial direction.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application Serial No. 61 / 153,530, filed February 18, 2009, entitled "LED LAMP," which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to lighting, and more particularly to lighting devices incorporating solid state lighting technology. Background technique [0004] Solid state lighting technology including light emitting diodes (LEDs) has been seen as a way to produce lamps with greater energy efficiency than traditional incandescent lamps and less negative environmental impact than traditional compact fluorescent lamps. A number of so called transition lamps using solid state lighting technology have been introduced. However, from a consumer's point of view, a significant disadvantage of these conventional transition lamps is that they do not look like conventional incandescent lamps. This is especially tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/00F21K99/00G02B27/00G02B3/00F21Y101/02
CPCG02B17/0872F21K9/00F21K9/52G02B19/0071G02B19/0061F21V7/0091G02B19/0028F21Y2101/02F21V7/00F21V13/02F21V19/001F21K9/61F21Y2115/10F21V7/041F21Y2115/15F21K9/68F21K9/232F21K9/66
Inventor H.罗
Owner OSRAM SYLVANIA INC
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