Thermal management of leds integrated to compact fluorescent lamps

A technology of light-emitting diodes and light guides, applied in the use of semiconductor lamps, semiconductor devices of light-emitting elements, lampshades, etc., can solve the problems of temperature sensitivity, lumen output reduction, increase, etc. The effect of thermal management

Inactive Publication Date: 2010-12-29
GENERAL ELECTRIC CO
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On the other hand, adding red through LEDs is problematic since currently available high-efficiency red LEDs are temperature sensitive
With increasing ambient temperature, the lumen output of the LED decreases significantly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thermal management of leds integrated to compact fluorescent lamps
  • Thermal management of leds integrated to compact fluorescent lamps
  • Thermal management of leds integrated to compact fluorescent lamps

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Referring now to the drawings, wherein like numerals represent like parts throughout the several views, Figure 1-3 Illustrated is a compact fluorescent lamp ("CFL") assembly 10 that is an integrated LED in accordance with one aspect of the present disclosure. The assembly typically includes a low pressure fluorescent discharge lamp device 12 that includes at least one low pressure discharge tube 14 attached to a housing or housing 16, typically formed of plastic. In the depicted embodiment, the CFL assembly includes two generally U-shaped low voltage discharge tubes 14, each radiating white light (3000K-4000K, 480-1200lm). Of course, it will be appreciated that other fluorescent lamp arrangements such as spiral discharge tubes with elongated paths may be used, and in a manner generally known in the art, as will be apparent from other embodiments described herein. The discharge tube arrangement 12 and the housing 16 may be assembled together to form a single element. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A light-source assembly includes a low-pressure fluorescent discharge tube arrangement having a cold spot temperature and radiating white light and at least one light-emitting diode radiating red light. An operating circuit supplies current to the discharge tube arrangement and the light-emitting diode. An outer envelope surrounds at least the discharge tube arrangement and provides a substantially homogenous light resulting from a mixture of the light radiated by the discharge tube arrangement and the light radiated by the light-emitting diode. A base mechanically and electrically connects at least the discharge tube arrangement in the outer envelope to a lamp-holder.

Description

technical field [0001] The present invention relates to a compact fluorescent lamp assembly, and more particularly, to a compact fluorescent lamp assembly with integrated LEDs. Background technique [0002] Prior art solutions to low color rendering of compact fluorescent lamps (CFLs) focus on optical properties, phosphors, CRI, etc. Although full spectrum fluorescent lamps exist, these lamps have lower lumens per watt (LPW), poorer color and lumen retention, or lower red color rendering. Thus, when illuminated by conventional CFLs, the colors containing red appear significantly different compared to incandescent lamps or natural sunlight. For example, with conventional CFL light sources, some colors lack a vivid, distinct red. There are CFLs on the market that use phosphors to solve the desired color rendering problem. [0003] Unfortunately, phosphor solutions are not sufficient for enhancing color quality, as the discharge can degrade the phosphor and lumen retention a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): H05B35/00F21S8/00
CPCH05B35/00G02B6/001F21V3/00F21K9/52F21Y2101/02Y02B20/386H01J61/327F21K9/232F21K9/61F21Y2103/30F21Y2113/20F21Y2115/10Y02B20/30
InventorL·巴拉什I·马罗斯A·阿戈德J·菲勒J·奥尔班G·施米德特I·P·巴克
OwnerGENERAL ELECTRIC CO